AP 10th Class Biology Bits Chapter 4 Excretion with Answers

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AP State Syllabus 10th Class Biology Bits 4th Lesson Excretion with Answers

Concept – I : Introduction-Excretion in Human Beings

Question 1.
Metabolic activities are
A) Only Anabolic activity
B) Only Catabolic activity
C) Both Anabolic & Catabolic activities
D) Partially Anabolic activity
Answer:
C) Both Anabolic & Catabolic activities

Question 2.
The word Excretion belongs to ……………….. language.
A) Greek
B) English
C) Chinese
D) Latin
Answer:
D) Latin

Question 3.
We have to wash the hands with ……………. after the dissection of kidney.
A) Dettol soap
B) fresh water
C) anti bacterial lotion
D) petrol
Answer:
C) anti bacterial lotion

Question 4.

Based on the above table the normal range of creatinine in the urine
A) <100 mg
B) 102 mg
C) 1 – 2 mg
D) 200 mg
Answer:
C) 1 – 2 mg

Question 5.

The volume of potassium at normal level in urine
A) 125 m.mol /L
B) 25 – 100 m.mol /L
C) 100 – 125 m.mol /L
D) 250 – 120 m.mol /L
Answer:
B) 25 – 100 m.mol /L

Question 6.
Read the contents of the urine as per the information given in table

The normal range of iurea present in the urine per day
A) 20 – 30 gm
B) 20 – 30 mg
C) 50 – 80 gm
D) 20 – 30 mmol/L
Answer:
A) 20 – 30 gm

Question 7.
How can you identify the waste materials in blood ?
A) Through scanning
B) Through urine test
C) Using thermometer
D) Through blood test
Answer:
B) Through urine test

Question 8.
Find the odd one different from the other three.
A) Carbohydrates
B) Fats
C) Proteins
D) Pyrethroids
Answer:
D) Pyrethroids

Question 9.
Find the incorrect function of the urinary system:
A) Removal of waste products from the blood stream.
B) Storage and excretion of urine
C) Regulation of leucocyte and platelet production
D) Regulation of blood volume and indirectly blood pressure
Answer:
C) Regulation of leucocyte and platelet production

Concept – 2 : Kidneys

Question 10.
Which of the following is correct path taken by urine in our body ?
A) Kidney, urethra ,ureters, bladder
B) Kidney, ureters,bladder, urethra
C) Kidney, bladder,ureters, urethra
D) Kidney, urethra ,bladder, ureters
Answer:
B) Kidney, ureters,bladder, urethra

Question 11.
Part of the nephron that exists in outer zone of kidney
A) Loop of the Henle
B) PCT
C) DCT
D) Bowman’s capsule
Answer:
D) Bowman’s capsule

Question 12.
In a typical adult kidney, the renal ………………….. is subdivided intp 8 to 15 distinct conical or triangular structures known as renal ……………………….
A) cortex; papillae
B) medulla; pyramids
C) medulla; columns
D) cortex; pyramids
Answer:
B) medulla; pyramids

Question 13.
Arrange the following to trace the path of filtrate through a renal tubule :
1) proximal convoluted tubule
2) distal convoluted tubule
3) ascending limb of nephron loop
4) descending limb of nephron loop
A) 1, 2, 3, 4
B) 2, 3, 4, 1
C) 1, 4, 3, 2
D) 3, 2, 1, 4
Answer:
C) 1, 4, 3, 2

Question 14.
The cup shaped broader end of nephron is called:
A) Glomerulus
B) Cortex
C) Medulla
D) Bowman’s capsule
Answer:
B) Cortex

Question 15.
‘U’ shaped part of the Renal tubule is called:
A) Loop of Henle
B) Proximal convoluted tubule
C) Distal convoluted tubule
D) Glomerulus
Answer:
C) Distal convoluted tubule

Question 16.
Choose the correct sentence that concerns with kidneys –
A) One pair of kidneys, one pair of ureters, urinary bladder
B) One pair of urinary bladder, one pair of ureters, kidney
C) One pair of kidneys, one pair of urinary bladder, ureter
D) One pair of ureters,one pair ofkidneys, ureter
Answer:
A) One pair of kidneys, one pair of ureters, urinary bladder

Question 17.
The part in which kidneys are located is ……………………
A) Ventral cavity
B) Abdominal cavity
C) Lateral part of the body
D) Chest portion
Answer:
B) Abdominal cavity

Question 18.
The inner side of a kidney has ………………….
A) Pyramid
B) Bowman’s capsule
C) Hilus
D) Himunus
Answer:
C) Hilus

Question 19.
The blood vessel which enters through hilus is …………………….
A) Renal artery
B) Renal vein
C) Adrenal vein
D) Adrenal artery
Answer:
A) Renal artery

Question 20.
The blood vessel which comes out from hilus is …………………
A) Renal artery
B) Afferent arteriole
C) Efferent arteriole
D) Renal vein
Answer:
D) Renal vein

Question 21.
The dark coloured outer zone is called
A) Medulla
B) Nephron
C) Auricle
D) Cortex
Answer:
D) Cortex

Question 22.
The colour of medulla present in kidney is …………………….
A) Brown
B) Dark brown
C) Red
D) Pale colour
Answer:
D) Pale colour

Question 23.
Way of passage of urine in human body
A) Kidneys
B) Ureters
C) Urethra
D) Urinary bladder
Answer:
C) Urethra

Question 24.
a – Right kidney is slightly lower in position
b – Right abdominal region of body is occupied by liver ‘
A) Both a & b are true, b explains a
B) Both a & b are true, b doesn’t explain a
C) a is true, b is false
D) a is false, b is true
Answer:
B) Both a & b are true, b doesn’t explain a

Question 25.
The oxygenated bipod enters into kidneys through …………………… (i) and ……………….. (ii) collects the deoxygenated blood.
A) (i) – Renal vein (ii) – Renal artery
B) (i) – Renal artery (ii) – Renal vein
C) (i) – Hilus (ii) – Renal vein
D) (i) – Renal artery (ii) – Hilus
Answer:
B) (i) – Renal artery (ii) – Renal vein

Question 26.
The position of the right kidney is lower than the left kidney due to the :
A) Presence of adrenal gland above it
B) Presence of pancreas above it
C) Presence of spinal bone above it
D) Presence of liver above it
Answer:
D) Presence of liver above it

Question 27.
Consider the following.
a) Urethra is 4 cm long in females
b) Urethra is 20 cm in.male
A) Both a & b are true
B) a is true, b is false
C) a is false, b is true
D) Both a & b are false
Answer:
A) Both a & b are true

Question 28.
Identify correct sentence given below:
A) Right kidney – slightly lower than left kidney
B) Right kidney – slightly higher than left kidney
C) Right kidney – left kidney are same height
D) Right kidney is nearer to vertebral column than left kidney.
Answer:
A) Right kidney – slightly lower than left kidney

Question 29.
The order of excretory organs:

A) i – Blood vessel, ii – Kidney, iii – Ureter, iv – Urinary bladder
B) i – Kidney, ii – Blood vessel, iii – Urinary bladder, iv – Ureter
C) i – Blood vessel, ii – Kidney, iii – Urinary bladder, iv – Ureter
D) i – Urinary bladder, ii – Ureter, iii – Kidney, iv – Blood vessel
Answer:
A) i – Blood vessel, ii – Kidney, iii – Ureter, iv – Urinary bladder

Question 30.
Ramesh has forgot some parts in the following picture. Label a and b. ’

A) a – pituitary gland, b. – ureter
B) a – adrenal gland, b – ureter
C) a – ureter, b – urethra
D) a – kidney, b – ureter
Answer:
B) a – adrenal gland, b – ureter

Question 31.
Most nephrons have short loops and are located almost entirely in the………………….
A) renal cortex
B) ureters
C) renal medulla
D) renal pelvis
Answer:
A) renal cortex

Question 32.
Diabetes insipidus is due to the deficiency of this hormone.
A) Insulin
B) Adrenaline
C) Vasopressin
D) Parathormone
Answer:
C) Vasopressin

Question 33.
What is the function of part labelled with ‘3’?

A) Ultrafiltration
B) Collection of urine
C) Collection of blood
D) Storage of urine
Answer:
B) Collection of urine

Question 34.
Choose the correct pathway of urine
A) Kidneys → ureters→ urinary bladder → urethra
B) Ureters → urinary bladder → urethra → kidneys
C) Urinary bladder → urethra → kidneys → ureters
D) Urethra → kidneys → ureters → urinary bladder
Answer:
A) Kidneys → ureters→ urinary bladder → urethra

Question 35.
Network structure of blood capillaries in nephron forms ………………….
A) Hilus
B) Glomerulus
C) Malpighian body
D) Renal tubule
Answer:
B) Glomerulus

Concept – 3 : Mechanism of Urine Formation

Question 36.
The structural and functional unit of kidney is called
A) Neuron
B) Nephron
c) Nephridia
D) Flame cell
Answer:
B) Nephron

Question 37.
Urine can be retained in bladder till it get filled up to the maximum capacity of
A) 700 – 800 ml
B) 300 – 400 ml
C) 600 – 650 ml
D) 800 – 1000 ml
Answer:
A) 700 – 800 ml

Question 38.
Which of the following hormone has direct impact on urine formation?
A) Adrenalin
B) Vasopressin
C) Creatinine
D) Oestrogen
Answer:
B) Vasopressin

Question 39.
Amber (Yellow) colour to the urine is due to
A) urochrome
B) bilirubin
c) biliverdin
D) chlorides
Answer:
A) urochrome

Question 40.
Urine formation mechanism has the following 4 steps. Arrange them systematically.
i) Tubular reabsorption
ii) Glomerular filtration
iii) Concentration of urine
iv) Tubular secretion
A) (i), (ii), (iii), (iv)
B) (iv), (iii), (ii), (i)
C) (iii), (ii), (i), (iv)
D) (ii), (i), (iv), (iii)
Answer:
D) (ii), (i), (iv), (iii)

Question 41.
The part where the maintenance of p^H occurs ……………………
A) Renal tubule
B) Distal convoluted tubule
C) Collecting tube
D) Pelvis.
Answer:
B) Distal convoluted tubule

Question 42.
The concentration of urine is ……………….. than that of blood concentration
A) equal
B) more
C) less
D) more or less
Answer:
B) more

Question 43.
Excessive, repeated, dilute urination is called …………………
A) Diabetes
B) Diabetes insipidus
C) Diabetes mellitus
D) Hepatitis
Answer:
B) Diabetes insipidus

Question 44.
The first kidney transplantation was performed by
A) Henle
B) Hufnagel
C) Brugamen
D) Parwin
Answer:
B) Hufnagel

Question 45.
Due to the concentration of urine in urinary bladder urination occurs. This is called
A) Micturition
B) Faecal excretion
C) Diabetes
D) Circulation
Answer:
A) Micturition

Question 46.
One of the following is a correct composition of urine

Answer:
C) 96% 2.5% 1.5%

Question 47.
The failure of kidney is called
A) ESRD
B) MSRD
C) ASRD
D) KSRD
Answer:
A) ESRD

Question 48.
Place of filtration of blood in nephron
A) Bowman’s capsule
B) Henle’s loop
C) Proximal convoluted tubule
D) Distal convoluted tubule
Answer:
A) Bowman’s capsule

Question 49.
a) The urine gets concentrated by reabsorption of water
b) Vasopressin is secreted only when concentrated urine is to be passed out
A) Both a and b are true
B) a is false b is true
C) a is true b is false
D) Both a and b are false
Answer:
A) Both a and b are true

Question 50.
Expanded form of ESRD is
A) Erythrocyte Sedimentation Rate of Deficiency
B) End Stage Renal Disease
C) Emergency Service and Rural Development
D) Endocrine Supplement Renal Disease.
Answer:
B) End Stage Renal Disease

Question 51.
The maintenance of equilibrium of concentration of liquids is
A) Homosapien
B) Stability
C) Homeostasis
D) Control
Answer:
C) Homeostasis

Question 52.
Millions of microscopic thin tubular units in each kidney are …………………
A) Neurons
B) Plasma lemma
C) Medulla
D) Nephrons
Answer:
D) Nephrons

Question 53.
The cup like structure in Nephron is ………………..
A) Glomerulus
B) Bowman’s capsule
C) Malpighian body
D) Loop of Henle
Answer:
B) Bowman’s capsule

Question 54.
Which of the following is correct regarding the filtration of wastes in blood vessels diameter?
A) Diameter of efferent arteriole is less than that of afferent arteriole.
B) Diameter of efferent arteriole is more than that of afferent arteriole.
C) Blood vessels have the pores and conduct the filtration.
D) Blood vessels excrete the wastes by contraction.
Answer:
A) Diameter of efferent arteriole is less than that of afferent arteriole.

Question 55.
The squamous epithelial cells in Bowman’s capsule are ………………………
A) Thrombocytes
B) Podocytes
C) Erythrocytes
D) Nephrons
Answer:
B) Podocytes

Question 56.
Distal convoluted tubule opens into ………………….
A) Proximal convoluted tubule
B) Loop of Henle
C) Collecting tube
D) Afferent arteriole
Answer:
C) Collecting tube

Question 57.
In nephron, on which of the following the reabsorption of water depends ?
A) quantity of water
B) materials which have to be excreted
C) quantity of blood
D) A and B
Answer:
D) A and B

Question 58.
Fill the flow chart of urine formation.

A) Tubular secretion
C) Tubular excretion
B) Tubular filtration
D) Urine formation
Answer:
A) Tubular secretion

Question 59.
Choose the correct order from the following:
A) Renal tubule → Distal convoluted tubule → Collecting tube → Pelvis → Ureter
B) Ureter → Pelvis → Collecting tube → Renal tubule → Distal convoluted tubule
C) Distal convoluted tubule → Collecting tube → Pelvis → Ureter → Renal tubule
D) Pelvis → Ureter → Collecting tube → Renal tubule → Distal convoluted tubule
Answer:
A) Renal tubule → Distal convoluted tubule → Collecting tube → Pelvis → Ureter

Question 60.
The most poisonous material among nitrogenous waste compounds of human body is …………………
A) ammonia
B) urea
G) uric acid
D) bile pigments
Answer:
A) ammonia

Question 61.
The acidic urine becomes alkaline on standing due to the decomposition of urea to …………………..
A) Sodium
B) Deamines
C) Uric acid
D) Ammonia
Answer:
D) Ammonia

Question 62.
a) Podocytes are formed of epithelial tissue
b) Podocytes possess pores to filter the substances
A) Both a& b are true
B) b is true, a is false
C) a is true, b is false
D) Both a & b are false
Answer:
A) Both a& b are true

Question 63.
a) In the beginning urine is acidic later it converts into alkaline,
b) Ammonia is formed by breaking down of urea
A) Both a & b are true, b explains a
B) Both a & b are false, b doesn’t explain a
C) a is true b is false
D) a is false b is true
Answer:
A) Both a & b are true, b explains a

Question 64.
A woman is in uremia stage. Therefore ………………….
i) Legs and hands are swollen
ii) Water and wastes are accumulated
iii) Weakness and tiredness
iv) No harm to kidneys
A) All are correct
B) Only (iv) is correct
C) Only (iv) is wrong
D) None of the above
Answer:
C) Only (iv) is wrong

Question 65.
Observe the a,b statements:
a) The urine formed by glomerular filtration is primary urine.
b) It is equal to the blood in chemical composition.
A) Both ‘a’ and ‘b’ are true
B) a true, b false
C) a false, b true
D) a,b both are false
Answer:
A) Both ‘a’ and ‘b’ are true

Question 66.
ESRD disease is related to this organ.
A) Lungs
B) Heart
C) Kidneys
D) Liver
Answer:
C) Kidneys

Question 67.
What will happen if sufficient amount of vasopressin is not secreted in the body?
A) Excretes concentrated urine
B) Excretes dilute urine
C) Excretes proteins along with urine
D) Excretes red coloured urine
Answer:
B) Excretes dilute urine

Question 68.
A person’s limbs are swollen and he is suffering from weakness and fatigue. This organ may be damaged in him.
A) Kidney
B) Brain
C) Heart
D) Liver
Answer:
A) Kidney

Question 69.
Every day Vikki’s brother in a given time passes urine on bed. What is the reason?
A) Less production of Adrenalin
B) More production of Vasopressin
C) No production of Adrenalin
D) Vasopressin not at all released
Answer:
D) Vasopressin not at all released

Question 70.
Which of the following is true concerning kidney transplants?
A) There is a shortage of people needing kidneys.
B) There is nearly a 100% success rate using artificial kidneys for transplant.
C) Removed of the donor kidney is very risky, often fatal.
D) There is a shortage of kidneys for transplant.
Answer:
D) There is a shortage of kidneys for transplant.

Question 71.
Urge for micturition occurs when urinary bladder is filled with …………….. milli litres of urine .
A) 300 – 800
B) 300 – 400
C) 700 – 800
D) 1600 -1800
Answer:
B) 300 – 400

Question 72.
The substance which is not reabsorbed into the blood capillaries surrounding the tubule nephron is mainly :
A) glucose
B) amino acid
C) urea
D) water
Answer:
C) urea

Question 73.
The below given part belongs to human excretory system .What is the process that occurs here ?

A) Reabsorption of water
B) Excretion
C) Urine purification
D) Ultrafiltration
Answer:
D) Ultrafiltration

Question 74.
If you keep an egg in the salt water , the egg will be contracted. The reason is
A) exo osmosis
B) endosmosis
C) Pressure
D) Diffusion
Answer:
A) exo osmosis

Question 75.
A ,B ,C, D are given below .Arrange the mechanism of urine formation in the correct order .
1) Glomerular filtration
2) Tubular reabsorption
3) Tubular secretion
4) Concentration of urine
A) A →B → C → D
B) B → A → C → D
C) A → C → B → D
D) A → B → D → C
Answer:
C) A → C → B → D

Question 76.
Major component present in urine in human beings is ………………………
A) urea
B) creatinine
C) sodium
D) water
Answer:
D) water

Question 77.
This hormone is secreted when urine is with high concentration.
A) Insulin
B) Vasopressin
C) Thyroxin
D) Adrenaline
Answer:
B) Vasopressin

Question 78.
Blood filtration unit in Nephron is…………………….
A) Loop of Henle
B) First convoluted tubule
C) Bowman’s capsule
D) Second convoluted tubule
Answer:
C) Bowman’s capsule

Concept – 4 : Dialysis

Question 79.
In dialysis, anticoagulant used to blood, taken from main artery in order to prevent the clotting of blood is …………………..
A) Heparin
B) Anti coagulase
C) Thrombin
D) Prothrombin
Answer:
A) Heparin

Question 80.
What liquid material does doctor use in dialysis ?
A) Plasma
B) Dialysing fluid
C) Janus green
D) Paraffin liquid
Answer:
B) Dialysing fluid

Question 81.
In Visakhapatnam, the gang of kidney thieves were arrested. They have performed so many kidney transplan-tation operations. How kidney transplantation is performed ?
i) Kidney should be taken from close relative only.
ii) There is modern clinical procedures through which any kind of kidney can be transplanted.
iii) The damaged kidney of the patient only be cured.
iv) Arrange the machine in the place of damaged kidney.
Find the incorrect ones from above.
A) (i) only
B) (i) and (ii) only
C) (i), (ii) and (iii) only
D) (iv) only
Answer:
D) (iv) only

Question 82.
If a patient is put on dialysis, he is most likely to be suffering from a severe ailment of the :
A) circulatory system
B) respiratory system
C) excretory system
D) digestive system
Answer:
C) excretory system

Question 83.
Each dialysis session lasts for …………………
A) 2 – 3 hours
B) 3 – 4 hours
C) 3 – 6 hours
D) 5 hours
Answer:
C) 3 – 6 hours

Concept – 5 : Other Pathways of Excretion

Question 84.
Which of the following is not an
excretory organ ?
A) Lungs
B) Kidney
C) Liver
D) Pancreas
Answer:
D) Pancreas

Question 85.
Which of the following pigment is not formed in the liver ?
A) Bilirubin
B) Biliverdin
C) Urochrome
D) Haemoglobin
Answer:
D) Haemoglobin

Question 86.
The element which is not reabsorbed in the large intestine
A) Calcium
B) Magnesium
C) Silicon
D) Iron
Answer:
C) Silicon

Question 87.
What is not really concerned with excretion given below ?
A) To send CO₂ out
B) Defecation
C) Sweat
D) to remove urea
Answer:
A) To send CO₂ out

Question 88.
Whom do you consult to know about composition of urine ?
A) Department of bio-chemistry
B) Department of physiology
C) Members of bio-technology
D) Department of pathology
Answer:
A) Department of bio-chemistry

Question 89.
The excretory material other than urine eliminated from the body
A) Tears
B) Blood
C) Sweat
D) Hormones
Answer:
C) Sweat

Question 90.
In haemodialysis process, blood is taken out from the body through :
A) Venacava
B) Artery
C) Vein
D) Both B and C
Answer:
B) Artery

Question 91.
Match the following:

i. Skin	a. Bile pigments
ii. Liver	b. Sebum
iii. Colon	c. Salts of calcium, magnesium

A) c, a, b
B) a, b, c
C) b, a, c
D) b, c, a
Answer:
A) c, a, b

Concept – 6 : Excretion in Other Organisms

Question 92.
The excretory organ in cockroach
A) malpighian tubules
B) raphids
C) ureters
D) nephridia
Answer:
A) malpighian tubules

Question 93.
Flame cells are excretory organs in
A) earth worm
B) house fly
C) fishes
D) platyhelminthes
Answer:
D) platyhelminthes

Question 94.
Special excretory organs are absent in
A) birds
B) amoeba
C) sponges
D) A and B
Answer:
B) amoeba

Question 95.
Choose the correct pair:
A) Protozoa – Flame cells
B) Annelida – Kidneys
C) Echinodermata – Nephridia
D) Arthropoda – Green glands
Answer:
D) Arthropoda – Green glands

Question 96.
Match the following,

List – A	List – B
1. Flame cells	a) Nematoda
2. Water vascular	b) Arthropoda system
3. Green glands	c) Starfish

A) 1 – c, 2 – b, 3 – a
B) 1 – b, 2 – c, 3 – a
C) 1 – a, 2 – b, 3 – c
D) 1 – a, 2 – c, 3 – b
Answer:
D) 1 – a, 2 – c, 3 – b

Question 97.
According to the studies of evolution the excretory structures were first seen in one of the following.
A) Protozoa
B) Platyhelminthes
C) Nemetyhelminthes
D) Both B & C
Answer:
B) Platyhelminthes

Question 98.
Specific excretory organs are absent in unicellular organisms belong to the phylum:
A) Porifera
B) Annelida
C) Protozoa
D) Echinodermata
Answer:
C) Protozoa

Question 99.
“No specific excretory organs are present in unicellular organisms”. Hence, the main excretion takes place by:
A) simple diffusion through body surface
B) through contractile vacuoles
C) osmosis through body surface
D) all the above
Answer:
D) all the above

Question 100.
Which of the following is not a nitrogenous waste ?
A) Ammonia
B) Uric acid
C) Urea
D) CO²
Answer:
D) CO²

Question 101.
Contractile vacuoles are the excretory organs in
A) Amoeba
B) Hydra
C) Paramoecium
D) A & C
Answer:
D) A & C

Question 102.
The mode of excretion through contractile vacuoles
A) Diffusion
B) Filtration
C) Osmoregulation
D) Crystallisation
Answer:
C) Osmoregulation

Question 103.
Excretory organs in mollusca
A) Green glands
B) Malpighian tubules
C) Metanephridia
D) Kidneys
Answer:
C) Metanephridia

Question 104.
Incorrect pair in the following.
A) Platyhelminthes – Flame cells
B) Arthropoda – Malpighian tubules
C) Mollusca – Metanephridia
D) Protozoan – Water vascular system
Answer:
D) Protozoan – Water vascular system

Question 105.
Identify the animal in which excretory orgah is absent.
A) Bird
B) Amoeba
C) Sponge
D) B and C
Answer:
D) B and C

Question 106.
Renette cells are excretory structures in
A) Mollusca
B) Protozoa
C) Nematoda
D) Echinodermata
Answer:
C) Nematoda

Question 107.
In reptiles this organ is involved in excretory system.
A) Flame cells
B) Kidneys
C) Green glands
D) Malpighian tubules
Answer:
B) Kidneys

Question 108.
Malpighian tubules are excretory organs in ………………..
A) Earth worm
B) Flatworm
C) Housefly
D) Hen
Answer:
C) Housefly

Concept – 7 : Excretion and Release of Substances in Plants

Question 109.
Why plants shed their leaves ?
A) To bloom
B) Unable to cope up with heat
C) Get rid off the wastes
D) To grow and develop
Answer:
C) Get rid off the wastes

Question 110.
Raphides are present in ………………. of plant.
A) bark
B) leaf
C) root
D) fruits
Answer:
D) fruits

Question 111.
The method through which excessive water is released out along with transpiration is ……………………
A) Photosynthesis
B) Guttation
C) Formation of bark
D) Respiration
Answer:
B) Guttation

Question 112.
The alkaloid which stimulates the nervous system is
A) Nimbin
B) Caffeine
C) Pyrethroid
D) Quinine
Answer:
B) Caffeine

Question 113.
Which of the following is catabolic activity ?
A) Photosynthesis
B) Respiration
C) Excretion
D) Metabolic activities
Answer:
B) Respiration

Question 114.
Datura has ………………
A) Nimbin
B) Pyrethroids
C) Scopalamine
D) Quinine
Answer:
C) Scopalamine

Question 115.
The alkaloids that save from snakebite.
A) Nimbin
B) Cinchona
C) Reserpine
D) Caffeine
Answer:
C) Reserpine

Question 116.
The bark of ……………… is used to cure malaria.
A) Tobacco
B) Cinchona
C) Neem
D) Datura
Answer:
B) Cinchona

Question 117.
The speciality of gymnosperms is …………………
A) Tannins
B) Resins
C) Gums
D) Alkaloids
Answer:
B) Resins

Question 118.
The white milky fluid secreted from the plants
A) Latex
B) Tannins
C) Gums
D) Resins
Answer:
A) Latex

Question 119.
……………….. is extracted from Hevea braziliensis
A) Latex
B) Rubber
C) Alkaloid
D) Gums
Answer:
B) Rubber

Question 120.
Bio-diesel is extracted from …….. (or) I am a plant. My seeds are used for production of bio-fuel. Who am I ?
A) Neem
B) Jatropa
C) Hevea
D) Papaver
Answer:
B) Jatropa

Question 121.
Which of the following is a sedative drug?
A) Morphine
B) Cocaine
C) Scopolamine
D) Caffeine
Answer:
C) Scopolamine

Question 122.
Cassia and Acacia will be used in ………………
A) Varnishes
B) Tanning of leathers
C) Manufacture of Rubber
D) Manufacture of bio-diesel
Answer:
B) Tanning of leathers

Question 123.
The scientist who stated that roots also secrete.
A) Bunsen
B) Brugaman
C) Haberland
D) J.C. Bose
Answer:
B) Brugaman

Question 124.
The pollen grains of the following plant causes asthma in man:
A) Parathenium
B) Neem
C) Heavea
D) Jatropa
Answer:
A) Parathenium

Question 125.
Excretory structures appeared for the first time in flatworms belong to the phylum:
A) Annelida
B) Arthropoda
C) Nematoda
D) Platyhelminthes
Answer:
D) Platyhelminthes

Question 126.
The deep brown coloured carbon compounds used in tanning of leather are:
A) Resins
B) Gums
C) Tannins
D) Latex
Answer:
C) Tannins

Question 127.
The alkaloid which is used for malaria treatment.
A) Nimbin
B) Caffeine
C) Quinine
D) Nicotine
Answer:
C) Quinine

Question 128.
Alkaloid used in snake bite.
A) Nimbin
B) Scopolamine
C) Reserpine
D) Quinine
Answer:
C) Reserpine

Question 129.
Alkaloid used in the treatment of malaria is the product of this plant.
A) Nicotiana tobaccum
B) Azadirachta indica
C) Cinchona officinalis
D) Rauwolfia serpentina
Answer:
C) Cinchona officinalis

Question 130.
Weeds and some wild plants are not eaten by insects, pests and animals because
A) Their leaves are very small
B) These are not attractive
C) The plants may contain toxic chemicals and unpleasant to taste
D) All the above
Answer:
C) The plants may contain toxic chemicals and unpleasant to taste

Question 131.
The resin obtained from Pinus is used in
A) Varnish
B) Bread
C) Rubber
D) Medicines
Answer:
A) Varnish

Concept – 8 : Excretion Vs Secretion

Question 132.
Tears are ………………
A) Involuntary fluid
B) Secretion
C) Excretion
D) Water
Answer:
C) Excretion

Question 133.
Hormone is a ……………….
A) Reagent
B) Secretion
C) Excretion
D) Chemical substance
Answer:
B) Secretion

Question 134.
The alkaloid which have Ayurvedic values is ……………….
A) Nimbin
B) Cocaine
C) Pyrethroids
D) Caffeine
Answer:
A) Nimbin

Question 135.
Tilak said, we can tan the leather with resins. What do you say ?
A) Yes, we can
B) No, we can’t
C) We can do it with little change
D) Unable to say
Answer:
B) No, we can’t

Question 136.
Find the odd one out.
A) Carbohydrate
B) Protein
C) Nimbin
D) Fat
Answer:
C) Nimbin

Question 137.
Consider the following
a) Tannins, Latex, Gums are primary metabolites
b) Proteins and Carbohydrates are secondary metabolites
A) Both a & b are true
B) a is true, b is false
C) a is false, b is true
D) Both a & b are false
Answer:
D) Both a & b are false

Question 138.
Eating leaves of neem gives bitter taste. Reason
A) Nicotin
B) Cinchona
C) Pyrethroid
D) Nimbin
Answer:
D) Nimbin

Question 139.
Composition of urine has chemicals ………………..
A) Urea
B) Bilirubin
C) Water
D) All
Answer:
D) All

Question 140.

What is the secondary metabolite produced from the plant given in the picture ?
A) Tannin
B) Gum
C) Alkaloid
D) Resin
Answer:
D) Resin

Question 141.
a) Synthesis of waste products in plants – is very slow.
b) Plants do not have specific excretory organs
A) Both a & b are true
B) a is true, b is false
C) B is true, a false
D) both a & b are false
Answer:
A) Both a & b are true

Question 142.
a) It is not good for health while sleeping under the tree during night
b) There is a chance of falling of branches
A) Both a & b are true, b explains a
B) Both a & b are true, b doesn’t explain a
C) a is true, b is false
D) a is false, b is true
Answer:
C) a is true, b is false