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

Changing the daylight hours from 14 hrs to 10 hrs

Changing the CO 2 concentration from 380 ppm to 410 ppm

Which choice correctly shows the gases that enter and exit plants during photosynthesis?

Enter: Carbon dioxide Exit: Oxygen

Enter: Oxygen Exit: Carbon dioxide

Enter: Water vapor Exit: Glucose

Which of the following is the correct equation for PHOTOSYNTHESIS?

CO 2 + light + H 2 O --> O 2 + Sugar

CO 2 + sugar + H 2 O --> O 2 + light

O2 + light + H 2 O --> CO 2 + Sugar

CO 2 + O 2 + H 2 O --> Light+ Sugar

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.

The rate of sugar production will decrease .

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

How would light intensity generally affect the rate of photosynthesis?

Increases the rate, up to a point

How would the concentration of CO 2 in water affect photosynthesis?

The higher the CO 2 , the greater the rate

The higher the CO 2 , the lower the rate

CO 2 concentration doesn't affect photosynthesis

a greater rate of photosynthesis causes higher CO 2 concentrations

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

Gradually slow down to zero because CO 2 is used up

Shows a constant rate as long as the light remains on

Gradually speeds up because O 2 builds up

Gradually slows down because glucose builds up

Why does the rate of photosynthesis decrease at high temperatures?

Enzymes do not have enough kinetic energy

Photosynthesis

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-6, MS-LS1-5, MS-PS1-1

+2

Standards-aligned

Zuzana Sulcova

Used 8K+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the raw materials of photosynthesis?

oxygen and carbon dioxide

oxygen and glucose

carbon dioxide and water

water and glucose

Tags

NGSS.MS-LS1-6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products of photosynthesis?

oxygen and carbon dioxide

oxygen and glucose

carbon dioxide and water

water and glucose

Tags

NGSS.MS-LS1-6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for glucose?

C₆H₁₂O₆

C₆H₆O₁₂

C₁₂H₆O₁₂

C₆O₂H₆

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for water?

H₂O

HO₂

CHO₂

CO₂H

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for carbon dioxide?

H₂O

CO₂

CHO₂

CO₂H

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chemical formula for oxygen?

H₁₂O₂

C₆O₂

O₃

O₂

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are plants usually green?

Because the chlorophyll reflects green light

Because the chlorophyll absorbs green light

Because the accessory pigments combine to make green

Because the accessory pigments only absorb green light

Tags

NGSS.MS-LS1-6

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Photosynthesis

20 questions

What are the raw materials of photosynthesis?

What are the products of photosynthesis?

What is the chemical formula for glucose?

What is the chemical formula for water?

What is the chemical formula for carbon dioxide?

What is the chemical formula for oxygen?

Why are plants usually green?

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

Which choice correctly shows the gases that enter and exit plants during photosynthesis?

After photosynthesis, plants store their energy as _________ .

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