INTERNAL QUESTIONS
SHORT QUESTIONS
- What are the components of food?
- What is nutrition?
- Why do plants and animals need nutrition?
- Write about autotrophs and autotrophic mode of nutrition? Give some example of autotrophs.
- Write about Heterotrophs and heterotrophic mode of nutrition? Give some example of Heterotrophs.
- What are saprotrophs? Give some example of saptrotrophs.
- Explain the process of photosynthesis?
- What are the factors essentials for the photosynthesis to take place? What are the end products made after photosynthesis?
- What is chlorophyll and what is its function?
- What are stomata and write the function of stomata?
- How water is transported from soil to the leaves of plants?
- What are the nutrients other than carbohydrates which are required by plants?
- In which form do plants absorb nitrogen?
- How do plants absorb nutrients other than carbohydrates from the soil?
- What are parasitic plants? Give some example of parasitic plants.
- Write about the mode of nutrition in non-green plants?
- What is an insectivorous plant? Give an example of insectivorous plant?
- What is Lichen?
- Give an example of symbiotic relationship.
- How do nutrients get replenished in the soil? Write a detailed answer.
- What is Rhizobium and how does Rhizobium help farmers?
- How do saprophytes digest its food?
- What is stoma? Write its function.
- Differentiate between
(a) Autotrophs and heterotrophs (b) Parasites and partial parasites - How do plants get nitrogen to synthesize proteins?
- How will you test the leaf for the starch?
- Write an experiment to show that light is necessary for photosynthesis?
- How humans and animals are directly or indirectly dependent on plants.
Answer: Humans and animals are directly or indirectly dependent on plants because all living organisms require food. Only plants can make their food themselves. They get it from plants or animals that eat plants. They link by food chain.
- Fill in the blanks
- …………… gas absorbed from the atmosphere during photosynthesis.
- …………… element is needed in addition to carbon, hydrogen and oxygen to make protein.
- ……………….. bacteria in the soil can convert atmospheric nitrogen into soluble compound
- Cuscuta is an example of ……………… type of plant.