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class 7 Nutrition in plants Flashcards | StudBud
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class 7 Nutrition in plants
class 7 Nutrition in plants
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22. What is the principle source of energy input in the biological system?
carbohydrates from plant
light from the sun
oxygen from air
Nutrient from the soil
2
18. What role does the insects play in the insectivorous plants?
Pollination
fertilization
Provides nutrition to the plant
Dispersal of seed
3
19. What is the role of bacteria in leguminous plant?
convert pant protein into ammonia
converts soil nitrates to gaseous nitrogen
converts atmospheric nitrogen into soil nitrates
converts oxides of nitrogen to soil nitrates
4
3. Simple carbohydrate produced by the plant as a result of photosynthesis is _______
starch
glucose
lactose
sucrose
5
10. Shape of guard cell is _________
cylindrical shaped
oval shaped
kidney shaped
circular
6
12. Amarbel is also known as _______
Pitcher
Sundew
Mould
Cuscuta
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13. Insectivorous plants traps insects because they ____
do not perform photosynthesis
grows in soil which do not contain sufficient nitrogen
Have different type of digestive system
DO not contain chlorophyll
8
Mutually beneficial relationship between cyanobacterium and fungi is known as___________
biogenisis
symbiosis
probiotic
photosynthetic
9
When a leaf kept in dark does not show the presence of starch in iodine test.We conclude --is needed for photosynthesis
carbon dioxide
water
sun light
oxygen
10
20. Which of the following type of nutrition is exhibited by the given figure bellow?
Parasitic nutrition
Symbiotic nutrition
Saprophytic nutrition
Autotrophic nutrition
11
16. How does photosynthesis helps to maintain the percentage of Co2 and O2 in the atmosphere?
By releasing O2 and C02
by giving of O2 and absorbing Co2
by giving of Co2 and absorbing O2
by absorbing O2 and Co2
12
15. In the equation of photosynthesis X+water gives glucose + y. Identify X and Y.
X - Co2 and Y - O2
X - Co2 and Y - H2
X - Co2 and Y - N2
x - O2 and Y - Carbon
13
4. Which plant is shown in the figure ________
cuscutta
venus fly trap
sundew
pitcher plant
14
9. Mould is a/ an ______
Saprophyte
none of these
Partial parasite
Parasite
15
11. Which of the following is not a symbiotic relationship?
Algae and Fungus
Rhizobium and Peas
all the above
Dodder and Host plant
16
8. Which among the following does not depend on other plants for their growth?
Cucuta plant
Mistletoe plant
Pitcher plant
corn smut
17
2. _____ is a fungus that obtains nutrition through saprophytic mode of nutrition.
Mildew
pitcher
dodder
venus flytrap
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17. Which part of the leaf controls the rate of loss of water to the air?
vascular bUndles
none of these
stomata
midrib
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14. Which of the statement is correct A) In symbiosis only fungus is benefited. B) In symbiosis only algae is benefited
statement 1 and 2 correct
statement 1 is correct
statement 1 and 2 are incorrect
statement 2 is correct
20
5. In biology among the relationship between two organism one organism is benefited and the other is harmed is called __
groupism
symbiosis
Mutualism
parasitism
21
6. Which of the following is not a leguminous plant?
pulses
peas
grams
mango
22
23. Leaves are green due to the presence of green clour pigment chlorophyll. What is its main function?
to absorb Co2 from atmosphere
to absorb water andmineral from the soil
to trap sun light
to give greenish colour to the leaf
23
21. Which of the following is the characteristic feature of organism exhibiting symbiosis?
two organisms live together and get benefited from each other
one organism grows as the parasite on the body of the other
organisms rap and feed on insects
organisms feed on dead and decaying organic matters
