Photosynthesis Test25

Which of the following is(are) the reactants (on the left hand side of the equation) of the reactions of photosynthesis?

• carbon dioxide
• water
• light
• all of the above

Photosynthesis uses sunlight to convert water and carbon dioxide into

• oxygen and pigment
• high-energy sugars, starches and carbon dioxide
• ATP and Carbon Dioxide.
• oxygen and high-energy sugars

Which of the graphs below represents the effect of light intensity on the rate of photosynthesis?

• A
• B
• C
• D

What is the small openings (pore) on the underside of a leaf through which oxygen and carbon dioxide can leave and enter the plant called? Also transpiration occurs through these pores on the plant.

• stomata (stoma)
• guard cells
• palisade mesophyll
• spongy mesophyll

What is a product of the Calvin cycle (light independent reaction)?

• oxygen gas
• ATP
• high-energy sugars
• carbon dioxide gas

Organisms that cannot make their own food and must obtain energy from the foods they eat are called

• autotrophs.
• heterotrophs.
• producers
• chemosythesis

Which is the correct equation for photosynthesis?

• 6CO2 + 6H2O --> C6H12O6 + 6O2
• C6H12O6 + 6H2O --> 6CO2 + 6O2
• C6H12O6 + 6O2 --> 6CO2 + 6H2O
• 6O2 + 6CO2 --> 6H2O + C6H12O6

Which of the following is an autotroph?

• mushroom
• deer
• leopard
• tree

What is the first step of photosynthesis where light is absorbed to produce Oxygen, ATP, & NADPH called?

• light-independent reactions
• light-dependent reactions.
• photosynthesis.
• all of the above

What are the products of the light-dependent reactions?

• oxygen gas
• ATP
• NADPH
• all of the above