Q. The pressure act as helper to support the leaf and keep the leaf firm is

View solution

Q. The rate of transpiration will be slower if the humidity of air is

View solution

Q. In plants, the upward movement of water and mineral salts is mainly forced by

View solution

Q. In small plants the mechanism for upward movement of water is

View solution

Q. The cobalt chloride paper change its colour from blue to pink in the presence of

View solution

Q. The transpiration which allow only small amount of water to evaporate is

View solution

Q. Through root pressure, water passes from living cells into xylem vessels by

View solution

Q. The rate of transpiration is directly proportional to

View solution

Q. Photosynthesis depends upon

View solution

Q. During photosynthesis radiant energy is converted into

View solution

Q. For the occurrence of photosynthesis than sugar must be formed from

View solution

Q. The concentration of carbon dioxide in atmosphere naturally is

View solution

Q. New protoplasm is formed by assimilation of

View solution

Q. Starch is digested to maltose by

View solution

Q. To destarch a plant the number of days it should be kept in darkness is

View solution

Q. The factor that affects the photosynthesis is

View solution

Q. Effective wavelength for photosynthesis is of color

View solution

Q. The process partially responsible for the life on earth is

View solution

Q. Amino acids are formed in leaves when glucose reacts with

View solution

Q. The phloem vessel cannot be collapse as their walls are

View solution