Photosynthesis

Multiple Choice

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen

• oxygen

• nitrogen

• carbon dioxide

Multiple Choice

Which statement about photosynthesis is correct?

• Plants get the energy they need for photosynthesis from water.

• Plants get the energy they need for photosynthesis from soil.

• Plants get the energy they need for photosynthesis from sunlight.

• Plants do not require energy to perform photosynthesis.

Multiple Choice

Biologist often use chemical equations to describe the reactions that occur inside of cells. Which of the following is the correct equation for PHOTOSYNTHESIS?

• CO₂ + light energy + H₂O --> O₂ + glucose

• CO₂ + glucose + H₂O --> O₂ + light energy

• O₂ + light energy + H₂O --> CO₂ + glucose

• CO₂ + O₂ + H₂O --> light energy + glucose

Multiple Choice

What 3 things do plants need for the process of photosynthesis?

• Sunlight, oxygen and sugar.

• Water, soil and oxygen.

• Sunlight, carbon dioxide and water.

• Sunlight, soil and water.

Multiple Choice

Plants or plant like organisms that make their own food using energy from the sunlight -

• heterotrophs

• autotrophs

• saprophytes

• chemotrophs

Multiple Choice

Where do the light reactions happen?

• mitochondria membrane

• thylakoid membrane

• stroma

• central vacuole

Multiple Choice

The Calvin Cycle occurs in the

• Thylakoid

• Grana

• Inner membrane of chloroplast

• Stroma

Multiple Choice

Main products of the Calvin Cycle

• Oxygen, NADP+, ADP

• Glucose, CO2, ADP

• ADP, NADP+, Glucose

• ATP, NADPH, Oxygen

Multiple Choice

What is the organelle responsible for photosynthesis?

• Mitochondria

• Chloroplast

• Nucleus

• Cytoplasm

Multiple Choice

NADPH and ATP are the forms of the energy carrying molecules that are full of electrons that will be used to power the second part of photosynthesis, the ______________.

• Water cycle

• Krebs cycle

• Carbon cycle

• Calvin cycle

Multiple Choice

What enters and exits the Stomata?

• Oxygen and Carbon Dioxide

• Water and Nitrogen

• Sunlight and sugar

Multiple Select

Which of these are limiting factors for photosynthesis? Choose 3 answers.

• Light intensity

• CO₂ concentration

• Temperature

• Oxygen concentration

• glucose consumption

Multiple Choice

What molecule absorbs sunlight for photosynthesis?

• chloroplast

• thylakoid

• grana

• chlorophyll

Multiple Choice

Chlorophyll works best with which two colors of light?

• blue and red

• green and yellow

• yellow and red

• red and green

Multiple Select

Where is chlorophyll located?

• Inside the stroma

• Inside the thylakoids

• Inside the mitochondria

• Inside the nucleus

Multiple Select

The Calvin Cycle uses what things to make glucose:

• ATP

• NADPH

• CO2

• light

Multiple Choice

What is the chemical formula for glucose?

• C₆H₁₂O₆

• C₆H₆O₁₂

• C₁₂H₆O₁₂

• C₆O₂H₆

Multiple Choice

Which of these conditions would decrease the rate of photosynthesis in a plant?

• Above average precipitation

• Changing the daylight hours from 14 hrs to 10 hrs

• Changing the CO₂ concentration from 380 ppm to 410 ppm

• All of these choices

Multiple Choice

Which of the following go through the process of photosynthesis?

• bees

• algae

• humans

• mushrooms

Multiple Choice

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.

• oxygen

• carbon dioxide

• ATP

• glucose

Multiple Choice

If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars (rate of photosynthesis)?

• Sugar production will likely increase.

• Sugars will not be produced.

• The rate of sugar production will decrease .

• Fewer sugars will be produced at first, but then the plant will recover.

Multiple Choice

How would light intensity generally affect the rate of photosynthesis?

• Increases the rate, up to a point

• Increases the rate continuously

• Decreases the rate

• No relationship to the rate

Multiple Choice

If we enclosed a plant in an air-proof bottle, what would happen to the rate of photosynthesis 

• Gradually slow down to zero because CO₂ is used up

• Shows a constant rate as long as the light remains on

• Gradually speeds up because O₂ builds up

• Gradually slows down because glucose builds up

Multiple Choice

Why does the rate of photosynthesis decrease at high temperatures?

• Enzymes are denatured

• Enzymes do not have enough kinetic energy

Multiple Select

Which organisms are capable of performing photosynthesis?

• some bacteria

• animals

• algae

• plants

Multiple Choice

Photosynthesis nourishes almost the entire living world. Producers perform photosynthesis and consumers eat producers.

• true

• false