HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The root word synthesis means “to create”. Based on your vocabulary reference sheet, what energy source is used by plants which provides the reason for the prefix photo-in the word photosynthesis?
A
water
B
oxygen
C
light
D
heat
Explanation: 

Detailed explanation-1: -Plants absorb sunlight and turn that energy into food; the process is known as photosynthesis. This is a compound word made up of photo (which means “light") and synthesis (which means “to put together").

Detailed explanation-2: -During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

Detailed explanation-3: -In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Chlorophyll absorbs certain portions of the visible spectrum and captures energy from sunlight.

Detailed explanation-4: -photosynthesis is the process by which plants convert light energy into sugar.

Detailed explanation-5: -The light-dependent reaction takes place within the thylakoid membrane and requires a steady stream of sunlight, hence the name light-dependent reaction. The chlorophyll absorbs energy from the light waves, which is converted into chemical energy in the form of the molecules ATP and NADPH.

There is 1 question to complete.