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24 questions
The green pigment used in photosynthesis is
A. Phytochrome
B. Chlorophyll
C. Hemoglobin
D. None
Which organelle is responsible making food (Glucose) using sunlight?
Cell Membrane
Nucleus
Chloroplast
Mitochondria
How does most of the water needed by the plant get into its leaves?
It enters through the stomata
The roots absorb it and then it travels up the stem
It's made during a chemical reaction in the leaf
The flowers capture water and deliver it to the leaves
Which of the following is the correct equation for PHOTOSYNTHESIS?
light + carbon dioxide + water --> glucose + oxygen
carbon dioxide + sugar + water --> oxygen + light
oxygen + light + water --> carbon dioxide + sugar
carbon dioxide + oxygen + water --> Light+ Sugar
What is the pigment in chloroplasts that performs photosynthesis?
Chlorosynthesis
Chlorophyll
Chloroplast
Green
Why are plants considered autotrophs
They make their own food
They provide food for others
Which of the following statements is/are correct?
(i) All green plants can prepare their own food.
(ii) Most animals are autotrophs.
(iii) Carbon dioxide is not required for photosynthesis.
(iv) Oxygen is liberated during photosynthesis.
Choose the correct answer from the options below:
( i) and (iv)
(ii) only
(ii) and (iii)
(i) and (ii)
The autotrophic mode of nutrition requires
Carbon dioxide and water
Chlorophyll
Sunlight
All of the above
The chlorophyll in photosynthesis is used for
Absorbing light
Breaking down water molecule
No function
Reduction of CO2
Main site of photosynthesis
Leaf
Stem
Chloroplast
Guard cells
Numerous small openings are observed under the lower surface of a leaf through a magnifying lens are
Stomata
lamina
Midrib
Veins
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
Root hairs
Stomata
Leaf veins
Sepals
Which of the following is not necessary for photosynthesis
Chlorophyll
Carbon dioxide gas
Oxygen
Water
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