Photosynthesis : Question Preview (ID: 5797)

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Organisms that make their own food are called
a) autotrophs
b) heterotrophs

The products of photosynthesis are
a) glucose and carbon dioxide
b) glucose and oxygen
c) carbon dioxide and water
d) oxygen and water

The reactants of photosynthesis are
a) carbon dioxide and water
b) glucose and carbon dioxide
c) water and glucose
d) carbon dioxide and oxygen

Photosynthesis happens in the
a) mitochondria
b) nucleus
c) ribosome
d) chloroplast

Chlorophyll appears green because it
a) absorbs green light
b) reflects green light
c) reflects red and yellow light
d) contains carotenoids

What is a substance that absorbs light and produces a color called?
a) stomata
b) cuticle
c) pigment
d) enzyme

The light energy necessary for photosynthesis mainly comes from
a) the sun
b) the moon
c) a fire
d) ATP

The dark reactions (calvin cycle) of photosynthesis occur in the
a) thylakoid
b) stoma
c) granum
d) stroma

The light reactions of photosynthesis occur in the
a) thlyakoid
b) stoma
c) stroma
d) outer membrane

Which of these increases the rate of photosynthesis to a point and then drops off sharply?
a) light intensity
b) carbon dioxide concentration
c) water concentration
d) temperature

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