Animal Kingdom — BIOLOGY STD 11 Science — Question

Write a brief note on germination of pollen grains.

Write any three advantages of scientific names.

Flower is a reproductive unit of a plant.

1. It is morphologically called shoot. Explain.
2. On which part, floral whorls are arranged?

If a plant is girdled, which part of the plant dies first-the root or the shoot? Answer by giving reasons.

Name the part of the alimentary canal, where major absorption of digested food takes place. What are the absorbed forms of different kinds of food materials?

Which of the following is not found in birds?

1. Hindlimb.
2. Pectoral girdle.
3. Pelvic girdle.
4. Forelimb.

1. Name the dominant phase of the plant showing haplontic life cycle.
2. When does meiosis occur in these plants?

Distinguish between exosmosis and endosmosis.

What are mesosomes and what its use in bacterial cell?

Rashi, a class VII student was sitting with her mother (who is an editor for Biology). Her mother was insisting her to have some fruits to which Rashi refused repeatedly. Her mother tried convincing her by saying that proper diet is important for growth. Rashi argued saying that even plants grow without taking any food. To this, her mother smiled and explained her how plants make food with the help of leaves.

1. Name the term used for the process of food production in plants.
2. What are the factors required by plants for this process?
3. What are the additional function of leaves.
4. What values are shown by Rashi's mother?