What role does bile play in digestion?

Explain the process by which the energy requirements of autotrophic organisms are fulfilled. In which form are the unused carbohydrates stored?

List the three kinds of blood vessels of the human circulatory system and write their functions in tabular form.

Why do veins have thin walls as compared to arteries?

$(a)$ State two functions of bile juice.
$(b)$ Differentiate between the functions of enzymes pepsin and trypsin.

What is $translocation$? Why is it essential for plants? Where in plants are the following synthesized:
$(i)$ Sugars
$(ii)$ Hormones