|
1) If an ink drop is dropped in water and it spreads equally in water. It is called a. diffusion b. osmosis c. active transport d. respiration
|
||||
|
2) In plants roots take up water by the process of a. diffusion b. osmosis c. active transport d. respiration
|
||||
|
3) The food is carried away from leaves to the other parts of plant by a. dead cells of xylem b. sieve tubes of phloem c. companion cells of phloem d. root pressure in xylem
|
||||
|
4) The process in which water and mineral salts are moved from the roots to the leaves by xylem is generally known as a. transpiration b. translocation c. respiration d. photosynthesis
|
||||
|
5) The process that requires energy to move particles from one region to the other is a. osmosis b. active transport c. transpiration d. translocation
|
||||
|
6) The rate of transpiration depends on a. condition of a plant b. surroundings c. plant's condition and surrounding d. temperature
|
||||
|
7) The cross walls of phloem vessels are known as a. cross tissues b. cross plates c. sieve walls d. sieve plates
|
||||
|
8) The vessel that carries mineral salts from the roots to leaves is a. xylem b. phloem c. branch d. stem
|
||||
|
9) The force acting on water and minerals from bottom is known as a. root stream b. root pressure c. root push d. root pull
|
||||
|
10) As the light intensity increases the rate of transpiration is also a. increased b. decreased c. remained same d. remained unchanged
|
||||
