The disc shaped membrane sac present in the granum of chloroplast is?
Xylem
Phloem
Thylakoid
Stoma
What happens when the left ventricle of human heart contracts ?
The oxygenated blood is forced into the main artery.
The deoxygenated blood is forced into the pulmonary artery.
The deoxygenated blood is pumped into the lungs through pulmonary artery.
The oxygenated blood go into different body organs through pulmonary vein.
The autotrophic mode of nutrition requires
carbon dioxide and water
chlorophyll
sunlight
all of the above
The energy carried by a photon is called
Joule
Watts
Quantum
None
In submerged plants like Hydrilla carbondioxide diffuses directly through
Cuticle
Epidermis
Stomata
None of these
The chlorophyll and other pigments of the chloroplasts are
Water soluble
Solvent soluble
Both A and B
Fat soluble
The site of light reaction is
Mesophyll
Granum
The gas which is given off by chloroplasts in the Sunlight is
Oxygen
Water
Carbon dioxide
Chlorophyll
CO2 enters through stomata into the cells by
Imbibition
Plasmolysis
Diffusion
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
