In submerged plants like Hydrilla carbondioxide diffuses directly through
Cuticle
Epidermis
Stomata
None of these
Light rays consist of tiny particles called
Photons
Electrons
Protons
Given below are the events of photosynthesis. Identify which of the following is/are not correct ?a) Absorption of light energy by chlorophyll.b) Conversion of light energy to chemical energy and splitting of carbon dioxide into carbohydrates and oxygen.c) Reduction of carbon dioxide to carbohydrates.d) Conversion of chemical energy to radiant energy and splitting of water molecules into hydrogen and oxygen
a & b
b only
b and c
b and d
Which of the following molecules are located in the thylakoid membrane?
Xanthophyll
Phaeophytin
Rhodophytin
Chlorophyll
The lower side of plant leaf contains
paliside cells
lenticels
stomata
none of these
Intact structure of ___________ is required for glucose to be formed.
Tonoplast
Leukoplast
Chloroplast
None
The molecule which is broken down during the light reaction of photosynthesis is
Oxygen
Water
Carbondioxide
The disc shaped membrane sac present in the granum of chloroplast is?
Xylem
Phloem
Thylakoid
Stoma
Iodine can be used to test the presence of
glucose
cellulose
starch
none
In order to destarch the leaves for an experiment to show that sunlight is necessary for photosynthesis, the :
leaves are kept in alcohol and boiled in a water bath
leaves are soaked in iodine for two hours
plants with the leaves is kept in dark room for 48 hours
plant with the leaves is exposed to light of a lamp, a night before the experiment
