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Chemosynthesis

Last updated over 5 years ago

13 questions

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

Question 1

1.

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

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Question 11

11.

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

Question 12

12.

Question 13

13.

Question 2

2.

Where do the bacteria get the hydrogen sulfide from?

Question 3

3.

Question 4

4.

Question 5

5.

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

Question 6

6.

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

Identify an equation for chemosynthesis below. 

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

C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

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

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

Respiration

Decomposition

Chemosynthesis

Photosynthesis

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

oxygen 

water 

sulfur 

Plants use _ energy to make organic molecules 

physical

solar 

chemical 

Identify what this represents

carbon dioxide

sugar

sun

Identify what this represents

sugar

sun

carbon dioxide

oxygen 

Identify what this represents

sugar (glucose) 

sun

carbon dioxide

water 

Identify what this represents

sugar (glucose)

carbon dioxide

water

hydrogen sulfide

Identify what this represents

oxygen 

water

sun

hydrogen sulfide