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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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1
2. _____ is a fungus that obtains nutrition through saprophytic mode of nutrition.
pitcher
venus flytrap
Mildew
dodder
2
Mutually beneficial relationship between cyanobacterium and fungi is known as___________
symbiosis
biogenisis
photosynthetic
probiotic
3
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
4
17. Which part of the leaf controls the rate of loss of water to the air?
vascular bindles
mmidrib
stomata
none of these
5
14. Which of the statement is correct i. in symbiosis only fungus is benefited. ii. in symbiosis only algae is benefited
statement 1 and 2 are incorrect
statement 1 is correct
statement 2 is correct
statement 1 and 2 correct
6
19. What is the role of bacteria in leguminous plant?
converts oxides of nitrogen to soil nitrates
converts soil nitrates to gaseous nitrogen
converts atmospheric nitrogen into soil nitrates
convert pant protein into ammonia
7
10. Shape of guard cell is _________
oval shaped
cylindrical shaped
circular
kidney shaped
8
21. Which of the following is the characteristic feature of organism exhibiting symbiosis?
two organisms live together and get benefited from each other
organisms rap and feed on insects
one organism grows as the parasite on the body of the other
organisms feed on dead and decaying organic matters
9
6. Which of the following is not a leguminous plant?
peas
pulses
mango
grams
10
When a leaf kept in dark does not show the presence of starch in iodine test.We conclude --is needed for photosynthesis
water
carbon dioxide
oxygen
sun light
11
3. Simple carbohydrate produced by the plant as a result of photosynthesis is _______
sucrose
lactose
starch
glucose
12
16. How does photosynthesis helps to maintain the percentage of Co2 and O2 in the atmosphere?
By releasing O2 and C02
by absorbing O2 and Co2
by giving of O2 and absorbing Co2
by giving of Co2 and absorbing O2
13
11. Which of the following is not a symbiotic relationship?
Dodder and Host plant
all the above
Rhizobium and Peas
Algae and Fungus
14
23. Leaves are green due to the presence of green clour pigment chlorophyll. What is its main function?
to trap sun light
to give greenish colour to the leaf
to absorb Co2 from atmosphere
to absorb water andmineral from the soil
15
7. Chose the correct option for the given diagram.
a- cell membrane, b- cell wall, c- nucleus, d- vacuole, e - mitochondria
a - cell wall, b - cellmembrane, c - nucleus, d - vacuole, e - mitochondria
a - cell wall, b - cell membrane, c - vacuole. d- nucleus, e - mitochondria
none of the above
16
18. What role does the insects play in the insectivorous plants?
Pollination
Dispersal of seed
fertilization
Provides nutrition to the plant
17
12. Amarbel is also known as _______
Sundew
Pitcher
Mould
Cuscuta
18
20. Which of the following type of nutrition is exhibited by the given figure bellow?
Autotrophic nutrition
Saprophytic nutrition
Parasitic nutrition
Symbiotic nutrition
19
22. What is the principle source of energy input in the biological system?
Nutrient from the soil
carbohydrates from plant
light from the sun
oxygen from air
20
13. Insectivorous plants traps insects because they ____
grows in soil which do not contain sufficient nitrogen
Have different type of digestive system
DO not contain chlorophyll
do not perform photosynthesis
21
9. Mould is a/ an ______
Parasite
Partial parasite
none of these
Saprophyte
22
4. Which plant is shown in the figure ________
venus fly trap
cuscutta
sundew
pitcher plant
23
8. Which among the following does not depend on other plants for their growth?
Pitcher plant
Cucuta plant
corn smut
Mistletoe plant
24
5. In biology among the relationship between two organism one organism is benefited and the other is harmed is called __
groupism
parasitism
Mutualism
symbiosis