7th Grade > Biology
NUTRITION IN PLANTS MCQs
Total Questions : 117
| Page 6 of 12 pages
Answer: Option B. -> False
:
B
Only theplants containing chlorophyll canperform photosynthesis. There are a few plants which cannotprepare their own food and they live on other host plants as parasites and obtain their nutrients from them. Cuscuta is one such plant.
:
B
Only theplants containing chlorophyll canperform photosynthesis. There are a few plants which cannotprepare their own food and they live on other host plants as parasites and obtain their nutrients from them. Cuscuta is one such plant.
Answer: Option A. -> True
:
A
Rhizobium cannot make its own food. It lives in the roots of peas, moong, beans and other legumes. Itobtains its nutrients from these plants and also gets shelter. In return, they help the plant to fix atmospheric nitrogen.
:
A
Rhizobium cannot make its own food. It lives in the roots of peas, moong, beans and other legumes. Itobtains its nutrients from these plants and also gets shelter. In return, they help the plant to fix atmospheric nitrogen.
Answer: Option A. -> plants
:
A
Humans and animals are directly or indirectly dependent on plants for food. Because plants can make their own food through the process of photosynthesis.
:
A
Humans and animals are directly or indirectly dependent on plants for food. Because plants can make their own food through the process of photosynthesis.
Answer: Option B. -> Leaves
:
B
Green plants are called producers or autotrophs as they make their own food through the process of photosynthesis. Leaves prepare food through this process. So,they are called the food factories or the kitchen of the plants.
:
B
Green plants are called producers or autotrophs as they make their own food through the process of photosynthesis. Leaves prepare food through this process. So,they are called the food factories or the kitchen of the plants.
Answer: Option B. -> Fungi
:
B
Saprotrophs are organisms that derive nutrition from dead and decayingorganisms.Fungi, like mushrooms and yeast, secrete digestive juices on the dead and decaying matter and convert it into simpler substances or nutrients. Then, they absorb these nutrients.
:
B
Saprotrophs are organisms that derive nutrition from dead and decayingorganisms.Fungi, like mushrooms and yeast, secrete digestive juices on the dead and decaying matter and convert it into simpler substances or nutrients. Then, they absorb these nutrients.
Answer: Option B. -> Stem
:
B
The green part shown in the above picture is the stem of the cactus plant. It is green in colour and is involved in photosynthesis. The stem is fleshy and stores water. The leaves are modified to spines to prevent water loss.
:
B
The green part shown in the above picture is the stem of the cactus plant. It is green in colour and is involved in photosynthesis. The stem is fleshy and stores water. The leaves are modified to spines to prevent water loss.
Answer: Option A. ->
Algae
:
A and D
Algae and mango tree are green in colour due to the presence of chlorophyll and can make their own food by the process of photosynthesis.
Cuscuta is a parasitic plant that does not have chlorophyll and are dependent on the host plants for food.
Fungi like mushrooms lacks chlorophyll and they feed on dead and decaying organic matter, thus are called saprotrophs.
:
A and D
Algae and mango tree are green in colour due to the presence of chlorophyll and can make their own food by the process of photosynthesis.
Cuscuta is a parasitic plant that does not have chlorophyll and are dependent on the host plants for food.
Fungi like mushrooms lacks chlorophyll and they feed on dead and decaying organic matter, thus are called saprotrophs.
Answer: Option B. ->
Lichen
:
B and D
:
B and D
Parasites derive their nutrition from a host. Leeches and mosquitoes are parasites as they derive nutrition from a host. Mushrooms have saprotropic mode of nutrition as they feed on dead and decaying organic matter. Lichens are a symbiotic association of algae and fungi.
Answer: Option B. ->
Fungi
:
B
:
B
Saprotrophs are organisms that derive nutrition from dead and decaying organisms. Fungi, like mushrooms and yeast, secrete digestive juices on the dead and decaying matter and convert it into simpler substances or nutrients. Then, they absorb these nutrients.
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