Practice the AP 7th Class Science Bits with Answers Chapter 10 Nutrition in Plants on a regular basis so that you can attempt exams with utmost confidence.
AP State Syllabus 7th Class Science Bits 10th Lesson Nutrition in Plants with Answers
Choose the correct answer.
Question 1.
The green substance in the leaves is called
A) Stomata
B) Chlorophyll
C) Stem
D) Roots
Answer:
B) Chlorophyll
Question 2.
Iodine turns starch solution into …………. colour.
A) Blue
B) Green
C) Red
D) Blue black
Answer:
D) Blue black
Question 3.
These are heterotrophs
A) Cuscuta
B) Fungi
C) Human beings
D) Pitcher
Answer:
C) Human beings
Question 4.
Green plants are
A) Autotrophs
B) Heterotrophs
C) Parasites
D) Saprotrophs
Answer:
A) Autotrophs
Question 5.
Chlorophyll is absent in these plants
A) Autotrophs
B) Heterotrophs
C) All plnats
D) None of the above
Answer:
B) Heterotrophs
Question 6.
The food synthesised by the plants is stored as
A) Glucose
B) Starch
C) Proteins
D) All the above
Answer:
B) Starch
Question 7.
Plants grow because of the water it gets. Concluded by
A) Stephen Hales
B) Ingenhouz
C) Priestly
D) Von Helmont
Answer:
D) Von Helmont
Question 8.
Plants exchange gases with their surrounding air said by
A) Stephen Hales
B) Ingenhouz
C) Priestly
D) Von Helmont
Answer:
A) Stephen Hales
Question 9.
Leaves are organs of transpiration described by
A) Ingenhouz
B) Priestly
C) Von Helmont
D) Stephen Hales
Answer:
D) Stephen Hales
Question 10.
If animals were making air impure, plants were making it pure said by
A) Ingenhouz
B) Priestly
C) Von Helmont
D) Stephen Hales
Answer:
B) Priestly
Question 11.
Green parts of plants do photosynthesis in sunlight found by
A) Ingenhouz
B) Priestly
C) Von Helmont
D) Stephen Hales
Answer:
A) Ingenhouz
Question 12.
Green substances are called
A) Haemophyll
B) Chromophyll
C) Chlorophyll
D) All of these
Answer:
C) Chlorophyll
Question 13.
Autotrophs are
A) Animals
B) Fungi
C) Plants
D) All of these
Answer:
C) Plants
Question 14.
Photosynthesis need the following
A) Carbon dioxide
B) Water
C) Sunlight
D) All of these
Answer:
D) All of these
Question 15.
Photosynthesis takes place in
A) Leaves
B) Green stems
C) Green coloured structures
D) All of these
Answer:
D) All of these
Question 16.
Farmers sprinkle urea in rice field when leaves turned into ………. colour.
A) White
B) Brown
C) Yellow
D) Black
Answer:
C) Yellow
Question 17.
Plants get Carbon dioxide from
A) Air
B) Water
C) Sunlight
D) Chlorophyll
Answer:
A) Air
Question 18.
Function of stem in photosynthesis
A) Supply of Carbon dioxide
B) Exchange of gases
C) Transport of water and minerals
D) Strength
Answer:
C) Transport of water and minerals
Question 19.
Plants take water through roots and through stomata.
A) Air
B) Light
C) Minerals
D) Manure
Answer:
A) Air
Question 20.
Plants get air through
A) Stomata
B) Loose tissue
C) Lenticels
D) All of these
Answer:
D) All of these
Question 21.
The tiny holes on the surface of leaf are called
A) Stomata
B) Loose tissue
C) Lenticels
D) All of these
Answer:
A) Stomata
Question 22.
Forming starch by combining car-bon dioxide and water requires
A) Chlorophyll
B) Sunlight
C) Sodium
D) Calcium
Answer:
B) Sunlight
Question 23.
Herbarium is the ……….. of plants.
A) Collection
B) Preservation
C) Collection and preservation
D) None of these
Answer:
C) Collection and preservation
Question 24.
Plants produce first
A) Sugar
B) Starch
C) Proteins
D) Fats
Answer:
A) Sugar
Question 25.
The main nutrients needed are
A) Nitrogen
B) Potassium
C) Phosphorus
D) All of these
Answer:
D) All of these
Question 26.
Plants require nutrients in minute quantities called
A) Macro nutrients
B) Micro nutrients
C) Essential nutrients
D) Non essential nutrients
Answer:
D) Non essential nutrients
Question 27.
Yellow thread like structures twin-ning around the stem has no ……….
A) Chlorophyll
B) Leaves
C) Leaves and chlorophyll
D) Stem
Answer:
C) Leaves and chlorophyll
Question 28.
Haustoria are present in …….
A) Autotrophs
B) Heterotrophs
C) Saprophytes
D) Symbionts
Answer:
B) Heterotrophs
Question 29.
Haustoria are special
A) Roots
B) Stems
C) Leaves
D) All the above
Answer:
A) Roots
Question 30.
The living forms develop on dead and decayed material
A) Saprophytes
B) Halophytes
C) Autotrophs
D) Symbionts
Answer:
A) Saprophytes
Question 31.
Carnivorous plants gets water from
A) Soil
B) Insects
C) Other plants
D) All these
Answer:
A) Soil
Question 32.
Insectivorous plants meet their nitrogen requirement from ( )
A) Insects
B) Birds
C) Soil
D) All of these
Answer:
A) Insects
Question 33.
Through this experiment we prove that
A) photosynthesis
B) respiration
C) root absorption
D) transpiration
Answer:
C) root absorption
Question 34.
We can see the spots in
A) roots
B) stem
C) leaves
D) flowers
Answer:
C) leaves
Question 35.
Through this experiment we can prove that
A) light is essential for photosynthesis
B) carbondioxide is essential for photosynthesis
C) leaves are essential for photosynthesis
D) chlorophyll is essential for photosynthesis
Answer:
A) light is essential for photosynthesis
Question 36.
What type of plant is this?
A) Parasitic plant
B) Insectivorey plant
C) Mango plant
D) Saprophytic plant
Answer:
B) Insectivorey plant
Question 37.
Plants making food materials by this process
A) cooking food
B) food absorption
C) photosynthesis
D) symbiosis
Answer:
C) photosynthesis
Question 38.
Insectivorus plants fullfil their deficiency of this element by trapping insects
A) carbon
B) nitrogen
C) hydrogen
D) oxygen
Answer:
B) nitrogen
Question 39.
Symbiosis organisms share their
A) food
B) shelter
C) both A & B
D) none of these
Answer:
C) both A & B
Question 40.
This plants does not having green colour
A) Insectivorous plants
B) Saprophytes
C) Symbiosis plants
D) Autotrophs
Answer:
B) Saprophytes
Question 41.
Colonies of algae & fungi living together are called
A) parasitism
B) saprophytism
C) symbiosis
D) insectivorus
Answer:
C) symbiosis
Question 42.
In Dal plants bacteria live on nodules of this part
A) roots
B) stem
C) leaves
D) flowers
Answer:
A) roots
Question 43.
Cuscuta is
A) autotroph
B) saprophyte
C) insectivorous plant
D) parasitic plant
Answer:
D) parasitic plant
Question 44.
This parts are used in
A) Exchange of gases
B) Transpiration
C) Both A & B
D) None of these
Answer:
C) Both A & B
Question 45.
In starch test after adding iodine leaves turns into
A) green colour
B) red colour
C) yellow colour
D) blue colour
Answer:
D) blue colour
Question 46.
“Plant grows because of the water it gets” concluded by
A) Stephen Hales
B) Ingenhouz
C) Priestly
D) Von Helmont
Answer:
D) Von Helmont
Question 47.
Haustoria are present in
A) Autotrophs
B) Heterotrophs
C) Saprophytes
D) Symbiosis
Answer:
B) Heterotrophs
Question 48.
Haustoria is a modification of
A) Roots
B) Stem
C) Leaf
D) Buds
Answer:
A) Roots
Question 49.
Photosynthesis : Chlorophyll :: Stomata:
A) Exchange of air
B) Transport of nutrients
C) Supply of minerals
D) Production of flowers
Answer:
A) Exchange of air
Question 50.
Cuscuta is a thread-like plant. It neither has leaves nor chlorophyll. The mode of nutrion in this plant is
A) Autotrophic
B) Heterotrophic
C) Symbiont
D) Saprophytic
Answer:
B) Heterotrophic