Module 3 - Resp, photosynthesis, etc.

Question 1

Module 3 (Quiz) - The process of respiration consumes oxygen and releases the energy from ______________, converting them ultimately back to carbon dioxide and water.

Answer 1

Organic molecules

Question 2

Module 3 (Quiz) - What is metabolic energy ultimately released as?

Answer 2

Heat

Question 3

Module 3 (Quiz) - Electrons transferred through the process of respiration are eventually donated to oxygen, resulting in its reduction to form:

Answer 3

Water

Question 4

Module 3 (Quiz) - Metabolism is basically a collection of simple chemical reactions, each _________ by an enzyme.

Answer 4

Catalysed

Question 5

Module 3 (Quiz) - True or false: The Calvin Cycle is a main stage in respiration

Answer 5

False (photosynthesis)

Question 6

Module 3 (Quiz) - Glycolosis may occur in the first part of the fermentation of ________ by yeasts to lactate (where there is an absence of oxygen)

Answer 6

Ethanol

Question 7

Module 3 (Quiz) - What happens to electrons when oxidation occurs?

Answer 7

They are lost

Question 8

Module 3 (Quiz) - What kind of energy provides life to organisms?

Answer 8

Free energy

Question 9

Module 3 (Quiz) - When matter is recycled through a system, there is also a flow of:

a) Electrons
b) Energy

Answer 9

Energy

Question 10

Module 3 (Quiz) - What is acetaldehyde?

Answer 10

An intermediate compound formed during the process of ethanol fermentation

Question 11

Module 3 (Quiz) - What is the final electron acceptor of the TCA (The Citric Acid) cycle?

Answer 11

Oxygen

Question 12

Module 3 (Quiz) - In each turn of TCA cycle, how many molecules the following are regenerated:

i) ATP
ii) NADH
iii) FADH2

Answer 12

i) 1
ii) 3
iii) 1

Question 13

Module 3 (Quiz) - Which 2-carbon molecule enters the TCA cycle?

Answer 13

Acetyl CoA

Question 14

Module 3 (Quiz) - What do the NADH and FADH2 produced during the TCA cycle do?

Answer 14

Transport electrons

Question 15

Module 3 (Quiz) - The final electron transport chain in the process of respiration consists of a series of proteins located:

Answer 15

In the inner mitochondrial membrane

Question 16

Module 3 (Quiz) - The final stage of respiration is the process of ATP synthesis by what?

Answer 16

Oxidative Phosphorlyation

Question 17

Module 3 (Quiz) - What is the name of the membrane protein that allows protons to flow back into the mitochondrial matrix?

Answer 17

ATP synthase

Question 18

Module 3 (Quiz) - What does potential energy do at the end of respiration?

Answer 18

It is an electrochemical gradient that fuels the activity of ATP synthase protein

Question 19

Module 3 (Quiz) - Why is the electrochemical gradient that moves across the mitochondrial membrane called as such?

Answer 19

Because +ve charges are moved, and the chemical H is also moved

Question 20

Module 3 (Quiz) - How many ATP molecules may be produced during oxidative phosphorylation:

Answer 20

26-28

Question 21

Module 3 (Quiz) - What is the role of the electron transport chain in the mitochondrial membrane?

Answer 21

to set up an electrochemical gradient across the mitochondrial membrane

Question 22

Module 3 (Quiz) - Most of the carbon dioxide we breathe out has been produced by the conversion of:

Answer 22

pyruvate to acetyl CoA

Question 23

Module 3 (Quiz - photosynthesis) - What groups are included as photoautotrophs?

Answer 23

Plants, algae and some prokaryotes

Question 24

Module 3 (Quiz - photosynthesis) - What do chemoautotrophs provide through the oxidisation of inorganic chemicals?

Answer 24

Energy

Question 25

Module 3 (Quiz - photosynthesis) - Name 3 structural components of a chloroplast

Answer 25

i) Stroma ii) Thylakoid iii) Grana

Question 26

Module 3 (Quiz - photosynthesis) - What chemical energy do the light reactions of photosynthesis convert solar energy to?

Answer 26

ATP and NADH

Question 27

Module 3 (Quiz - photosynthesis) - To convert CO2 to organic compounds (sugars, what does the Calvin Cycle use?

Answer 27

ATP and NADH

Question 28

Module 3 (Quiz - photosynthesis) - What e photosynthetic pigments capture light energy?

Answer 28

i) Chlorophyll a ii) Chlorophyll b iii) Carotenids

Question 29

Module 3 (Quiz - photosynthesis) - What colour light do photosynthetic pigments not absorb?

Answer 29

Green

Question 30

Module 3 (Quiz - photosynthesis) - Where are light harvesting pigment complexes located?

Answer 30

Thylakoid membrane of chloroplasts

Question 31

Module 3 (Quiz - photosynthesis) - Noncyclic and cyclic electron flow are the two types of electron flow in what kind of reaction?

Answer 31

Light

Question 32

Module 3 (Quiz - photosynthesis) - Which of the following IS NOT a phase of the Calvin cycle: a. oxidative phosphorylation b. reduction c. regeneration of a CO2 acceptor d. carbon fixation

Answer 32

a. oxidative phosphorylation (respiratory)

Question 33

Module 3 (Quiz - photosynthesis) - What is the final product of the Calvin cycle?

Answer 33

glyceraldehyde 3 phosphate