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General Biology 12 & UCSP (2nd SEM) > Biology > Flashcards

Biology Flashcards

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1
Q

Arrange the following steps of cellular respiration accordingly.

A

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

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2
Q

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

A

18

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3
Q

Which part of the cell does glycolisis happen?

A

Cytoplasm

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4
Q

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

A

The number of phosphate group

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5
Q

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

A

10

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6
Q

Which protein complex does FADH enter to release its electron?

A

Complex II

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7
Q

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

A

12

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8
Q

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

A

Inner membrane

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9
Q

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

A

Pyruvate Oxidation

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10
Q

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

A

8

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11
Q

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

A

Acetyl CoA

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12
Q

Which of the following processes produces the most ATP?

A

Electron Transport Chain/Chemiosmosis

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13
Q

What is the main difference between aerobic and anaerobic respiration?

A

Aerobic respiration needs oxygen to occur, while anaerobic does not

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14
Q

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

A

Lactic and Alcohol Fermentation

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15
Q

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

A

Electron Transport Chain

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16
Q

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

A

Lactic acid accumulates

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17
Q

When is energy stored in ATP?

A

A phosphate group is added to ADP

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18
Q

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

A

32-38

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19
Q

What happen when gaining of electrons occur?

A

Reduction

20
Q

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

A

Acetaldehyde

21
Q

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

A

Carbon dioxide

22
Q

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

A

Three

23
Q

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

A

sulfate

24
Q

Which molecules are produced in glycolysis and used infermentation?

A

Pyruvate and NADH

25
Q

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

A

Obligate anaerobics

26
Q

What is the role of chlorophyll?

A

To trap light energy

27
Q

What are the products of the light dependent reactions?

A

ATP and NADH

28
Q

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

A

An electron

29
Q

What is the final electron acceptor in photosystem I?

A

NADH

30
Q

Why do plants appear green?

A

They reflect green light

31
Q

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

A

Light independent reaaction

32
Q

The oxygen produced in photosynthesis comes from what molecule?

A

Water

33
Q

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

A

Glucose

34
Q

Carbon Fixation is catalyzed by what enzyme?

A

RUBISCO

35
Q

The Calvin cyle requires each of the following inputs EXCEPT?

A

Oxygen

36
Q

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

A

Glucose

37
Q

What color does chlorophyll absorbs?

A

Blue and Red

38
Q

What organelle is the site of photosynthesis in plants?

A

Chloroplast

39
Q

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

A

3

40
Q

The following belong to each other, except:

A

Chlorophyll

41
Q

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

A

Carbon dioxide + water = glucose + oxygen

42
Q

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

A

15

43
Q

How does photosynthesis occur?

A

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

44
Q

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

A

2

45
Q

Which of the following gets energized first?

A

Photosystem II

General Biology 12 & UCSP (2nd SEM) (2 decks)

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