Biology Photosynthesis quiz

Students in a biology class conduct an experiment to determine the effect of temperature on the rate of photosynthesis in a plant. They place an Elodea plant into a test tube filled with water. Then, the students place the test tube under a light and slowly increase the temperature of the water. They record their results and display them on a graph as shown.

Which statement is supported by the data in the graph?

 

• the rate of oxygen production is lowest at M

• the rate of oxygen production is greatest at M

• the production of water molecules is greatest at L

• the number of carbon dioxide molecule in the beaker is greatest in section K.

Tags

NGSS.HS-LS1-5

Students in a biology class conduct an experiment to determine the effect of temperature on the rate of photosynthesis in a plant. They place an Elodea plant into a test tube filled with water. Then, the students place the test tube under a light and slowly increase the temperature of the water. They record their results and display them on a graph as shown.

Which statement explains the effect of temperature on the rate of photosynthesis?

• Oxygen molecules break down at temperatures above 25 degrees C

• the rate of photosynthesis is unaffected by the temperature of the water

• the number of chloroplasts decreases as the temperature of the water increases

• enzymes involved in plant photosynthesis are broken down at temperatures above 25 degrees C

Students study how light intensity affects the rate of photosynthesis in algae. They learn that the pH of water can be used to determine the rate of photosynthesis. They set up the following investigation. 

 

1. Fill four aquariums with water and add algae.

2. Label the first aquarium control. Label the other aquariums A, B, and C.

3. Measure the starting pH of the water in each aquarium.

4. Place a lamp facing the aquariums being tested.

5. Record the pH of each aquarium after an hour.

 

Click on the blank boxes and select the Initial Mass of Algae placed in each aquarium and the Distance of Light for each aquarium in the students’ investigation.

a

b

c

d

e

f

g

h

25 cm

5 grams

10 cm

15 cm

no light

5.0 g

5 g

5.00 g

Tags

NGSS.HS-LS1-5

 

After an hour, the students measure the final pH in each aquarium. The pH of each aquarium varies based on the amount of carbon dioxide present in the water. Water with more carbon dioxide will have a lower pH, while water with less carbon dioxide will have a higher pH.

 

Which aquarium will have the highest pH at the end of the investigation?

• control

• Aquarium A

• Aquarium B

• Aquarium C

Tags

NGSS.MS-PS1-2

Chemosynthesis is a cellular process used by organisms in deep sea ecosystems in the absence of light. A chemical equation for chemosynthesis is shown.

 

 

How is chemosynthesis different from photosynthesis?

• chemosynthesis requires CO2

• chemosynthesis is used by autotrophic organisms

• chemosynthesis produces energy in the form of sugars

• chemosynthesis harvests energy from other chemical compounds

Identify the components involved in the light-dependent reactions of photosynthesis.

a

b

c

d

e

f

g

h

Electron transport chain

Photosystem I

ATP

Photons

NADPH

Photosystem II

ATP synthetase

H2O

Tags

NGSS.HS-LS1-5

Label the molecules involved in the Calvin Cycle.

a

b

c

d

e

6 ADP

3-carbon sugar

6 NADPH

3 Molecules CO2

3 ATP

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What type of pigments are most abundant in a plant that does photosynthesis?

• carotenoids

• chlorophyll

• xanthophyll

• roots

Which type of carbon fixation is used by each?

• Most plants

• Calvin Cycle

• those in fast growth environments

• C-4 Pathway

• those in low water environments

• CAM pathway