Photosynthesis Quiz

What is the basic definition of photosynthesis?

• Energy within light is captured and used to synthesize carbohydrates

• Energy is released from carbohydrates

• Oxygen is converted into carbon dioxide

• Water is used to break down food

What is the formula for photosynthesis?

• CO2 + H2O + light energy → C6H12O6 + O2 + H2O

• C6H12O6 + O2 → CO2 + H2O + energy

• H2O + O2 → CO2 + C6H12O6

• CO2 + O2 + light energy → H2O + C6H12O6

What molecule is reduced in photosynthesis?

• CO2

• O2

• H2O

• C6H12O6

Which molecule is oxidized in photosynthesis?

• H2O

• CO2

• O2

• C6H12O6

What is the biosphere?

• Regions on the surface of earth and atmosphere where living organisms exist

• The core of the earth

• The oceanic regions only

• The atmosphere only

What is the difference between autotrophs and heterotrophs?

• Autotrophs make organic molecules or their own food; Heterotrophs must obtain food from an external source.

• Autotrophs consume other organisms; Heterotrophs produce their own food.

• Autotrophs live in water; Heterotrophs live on land.

• Autotrophs are animals; Heterotrophs are plants.

What makes photoautotroph different from a regular autotroph?

• Photoautotrophs use light as their energy source

• Photoautotrophs use chemicals as their energy source

• Photoautotrophs do not need energy

• Photoautotrophs use heat as their energy source

Which part of the plant does photosynthesis occur at?

• Chloroplast in the leaves

• Roots

• Stem

• Flowers

What organelle specifically allows photosynthesis to happen?

• Chloroplast

• Mitochondria

• Nucleus

• Ribosome

Chloroplast is very close to which other important organelle found in both plant and animal cells?

• Mitochondria

• Nucleus

• Ribosome

• Endoplasmic reticulum