Biology

Question 1

Arrange the following steps of cellular respiration accordingly.

Answer 1

I. Glycolisis
II. Pyruvate oxidation/Decarboxylation
III. Citric Acid Cycle
IV. Electron Transport Chain

Question 2

How many ATP/s will be produced (per glucose) if the NADH produced during Krebs cycle enters ETC?

Answer 2

18

Question 3

Which part of the cell does glycolisis happen?

Answer 3

Cytoplasm

Question 4

What is the main difference in terms of the composition of ADP and ATP?

Answer 4

The number of phosphate group

Question 5

How many molecules of glucose enter glycolysis if 20 Acetyl CoA is generated during Pyruvate Oxidation?

Answer 5

10

Question 6

Which protein complex does FADH enter to release its electron?

Answer 6

Complex II

Question 7

If there are 6 molecules of glucoes that entered glycolisis, how many Pyruvates will it produce?

Answer 7

12

Question 8

Where does Electron transport chain and Chemiosmosis happen during cellular respiration?

Answer 8

Inner membrane

Question 9

Which of the following cellular respiration processes does not yield ATP?

Answer 9

Pyruvate Oxidation

Question 10

How many NADH molecules are formed upon the complete breakdown (glycolysis) of 4 molecules of glucose?

Answer 10

8

Question 11

What is the starting substance for the Citric acid cycle to occur?

Answer 11

Acetyl CoA

Question 12

Which of the following processes produces the most ATP?

Answer 12

Electron Transport Chain/Chemiosmosis

Question 13

What is the main difference between aerobic and anaerobic respiration?

Answer 13

Aerobic respiration needs oxygen to occur, while anaerobic does not

Question 14

Which of the following are the two types of fermentation that can occur during anaerobic respiration?

Answer 14

Lactic and Alcohol Fermentation

Question 15

Which of the following processes uses NADH and FADH2 to produce ATP?

Answer 15

Electron Transport Chain

Question 16

What will happen when muscle cells cannot get oxygen fast enough to meet their energy needs

Answer 16

Lactic acid accumulates

Question 17

When is energy stored in ATP?

Answer 17

A phosphate group is added to ADP

Question 18

In the presence if oxygen, how many ATP are generated per glucose molecule?

Answer 18

32-38

Question 19

What happen when gaining of electrons occur?

Answer 19

Reduction

Question 20

In the absence of oxygen fermentation occurs, who will serve as the electron acceptor during alcohol fermentation?

Answer 20

Acetaldehyde

Question 21

What is removed from pyruvate during its conversion into an acetyl group?

Answer 21

Carbon dioxide

Question 22

How many NADH molecules are produced on each turn of the citric acid cycle?

Answer 22

Three

Question 23

Which among the following is an electron acceptor during anaerobic respiration?

Answer 23

sulfate

Question 24

Which molecules are produced in glycolysis and used infermentation?

Answer 24

Pyruvate and NADH

Question 25

What do you call those organism that dies once there is the presence of oxygen?

Answer 25

Obligate anaerobics

Question 26

What is the role of chlorophyll?

Answer 26

To trap light energy

Question 27

What are the products of the light dependent reactions?

Answer 27

ATP and NADH

Question 28

When a photon of light energy reaches a reaction center chlorophyll molecule, what becomes excited?

Answer 28

An electron

Question 29

What is the final electron acceptor in photosystem I?

Answer 29

NADH

Question 30

Why do plants appear green?

Answer 30

They reflect green light

Question 31

Which of the following occurs in the stroma of the chloroplast?

Answer 31

Light independent reaaction

Question 32

The oxygen produced in photosynthesis comes from what molecule?

Answer 32

Water

Question 33

Which of the following is NOT a product of the light dependent reaction?

Answer 33

Glucose

Question 34

Carbon Fixation is catalyzed by what enzyme?

Answer 34

RUBISCO

Question 35

The Calvin cyle requires each of the following inputs EXCEPT?

Answer 35

Oxygen

Question 36

Which of the following is NOT needed in order for photosynthesis to take place?

Answer 36

Glucose

Question 37

What color does chlorophyll absorbs?

Answer 37

Blue and Red

Question 38

What organelle is the site of photosynthesis in plants?

Answer 38

Chloroplast

Question 39

How many carbon dioxide molecule is needed to sustain the calvin cycle?

Answer 39

3

Question 40

The following belong to each other, except:

Answer 40

Chlorophyll

Question 41

Which of the following equations correctly summarizes the process of photosynthesis?

Answer 41

Carbon dioxide + water = glucose + oxygen

Question 42

How many carbon is needed to sustain the RUBP molecule in Calvin Cycle?

Answer 42

15

Question 43

How does photosynthesis occur?

Answer 43

The product of the light reaction are used to create glucose from carbon dioxide

Question 44

How many sets of PGA's is produced when there are 2 carbon dioxide during carbon fixation?

Answer 44

2

Question 45

Which of the following gets energized first?

Answer 45

Photosystem II