Prepare a list of functions controlled by Auxin related to the growth of plants.

What is the name of the plant hormone breaking the dormancy of bud and seed ?

How does the Gibberellin hormone cause the seeds to germinate and the plants to grow in height?

Prepare a list of role of artificial plant hormones in agriculture and horticulture. What are the influences of Insulin hormone on the absorption and metabolism of glucose in the human body? OR Write three differences between binocular vision with that of monocular vision on the following three aspects : Formation of image Field of vision Depth Write differences between inborn and acquired reflex actions on any two of the following aspects — Nature Condition Prior experience Neural pathway

Auxin hormone inhibits the growth of apical bud and increases the growth of axillary bud

Mention two roles of Auxin hormone in the growth of plants

In DNA, which of the following base pairs is correct? (a) A—T (b) A—T (c) G = C (d) G—C

Compare the steps of mitosis in plant cells and animal cells and select which are correct: Mitosis in plant cell Mitosis in animal cell I. Spindle is formed from the cytoplasm. I. Spindle is formed from centrioles or asters. II. Cytokinesis occurs by cell plate formation. II. Cytokinesis occurs by cleavage furrow formation. III. Centrosomes are not involved. III. Centrosomes form from centrioles and are involved in mitosis. IV. Division of cytoplasm occurs through the formation of a cell plate. IV. Division of cytoplasm occurs through furrow formation. Which are correct? (a) I, IV (b) II, IV (c) II, III (d) III, IV

Which of the following statements is NOT correct? (a) Fibrin helps in blood clotting. (b) Platelets stop bleeding; many platelets reach the site of injury and begin the process of blood clotting. (c) Insulin increases the level of glucose in blood. (d) Adrenaline helps to increase heartbeat.

Which one of the following is an incorrect food chain? (a) Grass → Rabbit → Snake → Hawk (b) Grass → Grasshopper → Frog → Snake (c) Grass → Cow → Man → Tiger (d) Grass → Insect → Rat → Snake

Which of the following is not an example of mutualism? (a) Man and intestinal bacteria (b) Water hyacinth and fish (c) Fish and sea anemone (d) Lichen and blue green algae

Which of the following statements about self-pollination is correct? Self-pollination occurs within the same flower. New characters do not arise by self-pollination. The chance of pollination failure is less if self-pollination is not dependent on an external agent. Seed production is higher if self-pollination is not dependent on an external agent. (a) 3 (b) 1 (c) 4 (d) 2