Available Answers

1. 1.

   Fill in the blanks.

   1. Vascular system in plants is composed of __________ and __________ tissues.
   2. Two processes are involved in the absorption of minerals by roots -- diffusion and _____________________.
   3. Active transport involves the movement of minerals from a _________ concentration area to ________________ concentration.
   4. The upward movement of water and minerals takes place by a process known as _____________________.
   5. The rate of transpiration is ________ on a hot day as compared to a cold day.
   6. There is a direct relationship between absorption and ____________________.
2. 2.

   State if the following statements are true or false. Correct the statement if it is false.

   1. The sieve cells of phloem tissues also form long tubes for translocation of food.
   2. Phloem transports water and minerals upwards from the roots.
   3. Stem greatly increase the surface area for absorption of water and nutrients from the soil.
   4. The movement of minerals ions from a lower concentration area to a higher concentration area is called active transport.
   5. The transpiration rate is more if the wind is blowing as the water vapour is removed faster from the leaves.
3. 3.

   Differentiate between Osmosis and Diffusion.

4. 4.

   Differentiate between Transpiration and Translocation.

5. 5.

   Differentiate between Xylem and Phloem.

6. 6.

   Differentiate between Macro-nutrients and Micro-nutrients.