AP BIOLOGY

PLANTS

TRANSPORT IN PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where are carbohydrates made in a green leaf?
A
cell vacuoles
B
chloroplasts
C
phloem
D
xylem
Explanation: 

Detailed explanation-1: -Green plants manufacture glucose through a process that requires light, known as photosynthesis. This process takes place in the leaf chloroplasts. Carbon dioxide and water molecules enter a sequence of chemical reactions within the chloroplasts.

Detailed explanation-2: -Carbohydrate production occurs in the stroma of the chloroplast. The stroma is the liquid filled space between the thylakoid and inner membranes. The stroma is the site of the Calvin cycle which is the process by which carbohydrate synthesis occurs.

Detailed explanation-3: -Carbohydrates. Chloroplast is the organelle for photosynthetic carbon assimilation in plant cells. Carbohydrates assimilate in chloroplasts during the day, with some stored as starch, or degraded to supply sugars for growth at night.

Detailed explanation-4: -Leaves That Breathe People breathe oxygen in and carbon dioxide out, but for a plant to make carbohydrates, the leaves take in carbon dioxide through the stomata on the leaf surfaces. From the stomata, the mesophyll cells use the carbon dioxide to combine it with water and light for photosynthesis.

Detailed explanation-5: -During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch. Cellulose is used in building cell walls.

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