DENDROLOGY

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TREE PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tamara planted two plants in identical pots. She covered one plant with a black bucket and left one plant uncovered. Tamara thinks the covered plant will die. Why would covering this plant with a dark bucket MOST likely cause it to die?
A
because the plant needs a lot of room to grow
B
because the plant needs sunlight for photosynthesi
C
because the bucket keeps the plant from getting enough oxygen
D
because the bucket keeps the plant from absorbing water through the roots
Explanation: 

Detailed explanation-1: -And by covering the flask containing leaf B with black cloth, the leaf wont get exposure of sun light and photosynthesis won’t happen. From this observation, we conclude that photosynthesis (to make starch) takes place in the presence of sunlight. Hence both the leaves do not have starch.

Detailed explanation-2: -If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth’s atmosphere would eventually become nearly devoid of gaseous oxygen.

Detailed explanation-3: -Areas of the leaf with chlorophyll should turn blue–black when iodine is added proving starch is present. This in turn, proves that photosynthesis occurred. The white areas of the leaf without chlorophyll could not photosynthesise.

Detailed explanation-4: -Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

There is 1 question to complete.
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