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Chapter: 04. Photosynthesis

⁠
All organisms multiply in number to produce their own kind through a process called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Reproduction
Green plants make their own food by the process of photosynthesis and are therefore called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
autotrophs
During photosynthesis, solar energy is trapped by chlorophyll and converted into _ _ _ _ _ _ _ _ _ _ _ _ _ _ energy.
chemical
The process of splitting a water molecule into H⁺ and OH⁻ radicals by energy from light is known as the _ _ _ _ _ _ _ _ _ _ _ _ _ _ of water.
photolysis
Chlorophyll is contained inside specialized cell organelles called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
chloroplasts
In desert plants, leaves are modified into spines and photosynthesis is performed by the green _ _ _ _ _ _ _ _ _ _ _ _ _ _.
stem
Water is distributed to every cell in the leaf by the xylem, while synthesized food is translocated to other parts of the plant by the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
phloem
The microscopic pores present in the epidermis of leaves for gas exchange are called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
stomata
Each stoma is guarded by two kidney-shaped _ _ _ _ _ _ _ _ _ _ _ _ _ _ cells.
guard
Sir Jagdish Chandra Bose invented an instrument called the _ _ _ _ _ _ _ _ _ _ _ _ _ _ to measure the growth of plants.
crescograph
During the day, water enters the guard cells causing them to become _ _ _ _ _ _ _ _ _ _ _ _ _ _ and open the stomatal pore.
turgid
At night, guard cells lose water and become _ _ _ _ _ _ _ _ _ _ _ _ _ _, leading to the closure of stomata.
flaccid
Photosynthesis is maximum in blue and red light, but it is minimum in _ _ _ _ _ _ _ _ _ _ _ _ _ _ light.
green
The rate of photosynthesis increases with an increase in carbon dioxide concentration in the air up to _ _ _ _ _ _ _ _ _ _ _ _ _ _.
0.1%
Reduced availability of water causes the closure of stomata, which drops the entry of _ _ _ _ _ _ _ _ _ _ _ _ _ _ into the cells.
carbon dioxide
Soluble glucose is transported to different parts of the plant through phloem in a process called _ _ _ _ _ _ _ _ _ _ _ _ _ _.
translocation
Extra glucose synthesized during photosynthesis is stored in different parts of plants in the form of insoluble _ _ _ _ _ _ _ _ _ _ _ _ _ _.
starch
Boiling a leaf in ethyl alcohol destroys its _ _ _ _ _ _ _ _ _ _ _ _ _ _, making the leaf lose its green color.
chlorophyll
In the experiment to test for starch, the presence of starch is confirmed when the leaf turns _ _ _ _ _ _ _ _ _ _ _ _ _ _ upon adding iodine solution.
blue-black
To show that carbon dioxide is necessary for photosynthesis, a jar contains a watch glass filled with _ _ _ _ _ _ _ _ _ _ _ _ _ _ solution to absorb the gas.
potassium hydroxide (KOH)
Gallery
 
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