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प्रश्न
We eat food composed of all the nutrients like carbohydrates, proteins, fats, vitamins, minerals, and water. After digestion, these are absorbed in the form of glucose, aminoacids, fatty acids, glycerol etc. What mechanisms are involved in absorption of digested food and water?
उत्तर
Absorption is the process by which nutrients pass from the alimentary canal (mainly the small intestine) into the blood and lymph. The mechanisms involved in the absorption of digested food (nutrients other than water) are simple diffusion, facilitated diffusion, and active transport. Glucose is absorbed by active transport, some amino acids are absorbed by active transport, and some by facilitated diffusion, fatty acids and glycerol are absorbed by simple diffusion. Mechanism /involved in the absorption of water is osmosis.
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संबंधित प्रश्न
Indicate whether the following statements are True (T) or False (F).
Amoeba has irregular shape. (T / F)
Growth of cell wall during cell elongation take place by ______.
I convert the Sun’s energy into food for the plant. Who am I?______
Adipose: tissue:: eye: ______.
Assertion (A): Tissue is a group of dissimilar cells.
Reason (R): Muscle is made up of Muscle cell.
On the lines given below, write about what you have learned from the activities done in this lesson.
Let me tell you about some of the important things I’ve learned about cells. First, I’ll start with…______
Name the largest Angiosperm cell
Cell wall of which one of these is not made up of cellulose?
Match the terms given in column I with their functions given in column II and fill the blanks given below the table :
| Column I | Column II |
| A. Chloroplast | i) carries hereditary characters |
| B. Cell membrane | ii) controls the activities of cells |
| C. Nucleus | iii) site of photosynthesis |
| D. Chromosome | iv) controls the movement of materials into and out of cells. |
A - ______ ; B - ______ ; C - ______ ; D - ______
______ first saw and described a live cell.
