Photosynthesis MCQs

There are __ carbon atoms in glucose

12
5
6
16

Correct Answer

6

There are __ hydrogen atoms in glucose

12
5
6
16

Correct Answer

12

There are __ oxygen atoms in glucose

12
5
6
16

Correct Answer

6

The light reactions of photosynthesis transform _ energy into chemical energy

heat
light
Sound
electric

Correct Answer

light

The __ reactions of photosynthesis transform light energy into chemical energy

dark
light
Both of these
None of these

Correct Answer

light

The light reactions of photosynthesis transform light energy into __ energy

chemical
heat
Sound
electric

Correct Answer

chemical

The _ reactions of photosynthesis produce food after conversion of light energy to chemical energy

dark
light
Both of these
None of these

Correct Answer

light

_ use pigments to absorb light energy from the Sun.

Plants
algae
green bacteria
All of these

Correct Answer

All of these

which colors the leaves of plants green?

Chlorophyll
phosphorus
Magnesium chloride
Chlorine

Correct Answer

Chlorophyll

The _ in plant cells contain lots of chlorophyll in their membranes so they can absorb light energy

mitochondria
chloroplasts
ribosomes
centrioles

Correct Answer

chloroplasts

During the light reactions of photosynthesis, _ absorb light energy from the Sun and then transform it into the chemical energy stored in ATP

mitochondria
chloroplasts
ribosomes
centrioles

Correct Answer

chloroplasts

The light-independent reactions form a metabolic cycle that’s known as the _ cycle

Nusselt-reynold
stefan-boltzmann
Calvin-Benson
einstein-oppenheimer

Correct Answer

Calvin-Benson

To make glucose, plants first take carbon dioxide out of the air through a process called _

carbon recession
carbon assimilation
oxygen fixation
carbon fixation

Correct Answer

carbon fixation

taking carbon dioxide and attaching it to a molecule inside the cell is called?

carbon recession
carbon assimilation
oxygen fixation
carbon fixation

Correct Answer

carbon fixation