Sign up for FREE

Chemosynthesis

Last updated over 5 years ago

13 questions

This lesson is about Chemosynthesis.  Watch the short videos below and read the passage to answer the questions.  

1

1

1

1

Question 1

1.

List some animals that depend on the chemosynthetic bacteria at the bottom of the ocean near the hydrothermal vents.

1

Question 2

2.

Where do the bacteria get the hydrogen sulfide from?

1

1

1

Question 5

5.

Do all chemosynthetic organisms use the same chemical energy? Explain your answer.

1

1

1

1

1

Question 11

11.

Explain in your own words the difference between photosynthesis and chemosynthesis.

Question 12

12.

Identify an equation for chemosynthesis below.

CO2 + 4H2S + O2 -> CH20 + 4S + 3H2O

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

6CO2  + 6H2O + Sunlight ———> C6H12O6  + 6O2

Question 13

13.

In deep ocean trenches, bacteria produce organic materials from inorganic compounds through the process of

Respiration

Decomposition

Chemosynthesis

Photosynthesis

Question 3

3.

The bacteria use energy released by oxidizing _ to make organic molecules.

oxygen 

water 

sulfur 

Question 4

4.

Plants use _ energy to make organic molecules

physical

solar 

chemical 

Question 6

6.

Identify what this represents

carbon dioxide

sugar

sun

Question 7

7.

Identify what this represents

sugar

sun

carbon dioxide

oxygen 

Question 8

8.

Identify what this represents

sugar (glucose) 

sun

carbon dioxide

water 

Question 9

9.

Identify what this represents

sugar (glucose)

carbon dioxide

water

hydrogen sulfide

Question 10

10.

Identify what this represents

oxygen 

water

sun

hydrogen sulfide