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Flashcards in Exam III Deck (33)
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1
Q

What does light excites in photosintetic pigments?

A

Electrons

2
Q

Chlorophyll A absorbs which color of colors of light?

A

red and violet

3
Q

In Engleman’s 1882 experiment, why did bacteria cluster in red or violet bands of the rainbow?

A

Algae photosynthesis best at those wavelengths, producing needed oxygen for the bacteria

4
Q

What do plants need to carry out photosynthesis?

A

CO2 and H2O

5
Q

The products of the light dependent reactions of photosynthesis includes:

A

ATP, NADPH, and O2

6
Q

The light dependent reactions occur here:

A

the thylakoid membrane

7
Q

The products of light independent reactions of photosynthesis are:

A

ADP, NADP+, and Glucose

8
Q

The light independent reactions occur here:

A

The stroma

9
Q

The plant cells are capable of:

A

photosynthesis, glucose breakdown, aerobic respiration, and both photosynthesis and glucose breakdown

10
Q

When molecules are broken apart in respiration, the energy released is:

A

is channeled into molecules of ATP

11
Q

The correct sequence for the respiration process is:

A

glycolysis then Krebs and finally electron transfe

12
Q

The greatest number of ATP molecule is produced in:

A

aerobic electron transfer.

13
Q

Glycolysis depends on a continuous supply of:

A

NAD+

14
Q

What is necessary for glycolysis to begin?

A

an input of energy from ATP

15
Q

Glycolysis results in:

A

production of pyruvate and occurs in the cytoplasm

16
Q

How many ATP molecules( NET yield) are produced per molecule of glucose degraded during glycolysis?

A

two

17
Q

The Krebs cycle takes place in the:

A

mitochondria

18
Q

The breakdown of pyruvate in the Krebs cycle results in the release of:

A

energy and carbon dioxide

19
Q

To breakdown a glucose molecule completely requires how many passes through the Krebs cycle?

A

2

20
Q

Which process is a transition from glycolysis to the Krebs cycle?

A

acetyl CoA formation

21
Q

When glucose is used as the energy source, the largest amount of ATP is produced is in:

A

Electron Transfer Phosphorylation

22
Q

During Electron Transfer Phosphorylation, which ion accumulates in the outer compartment of the mitochondria?

A

hydrogen

23
Q

The ultimate electron acceptor in aerobic respiration is:

A

O2

24
Q

Hydrogen ions diffuse from the outer to inner compartment of the mitochondria through what molecule?

A

ATP synthase

25
Q

How many ATP’s form during the 3rd stage of aerobic respiration?

A

32

26
Q

Yeast fermentation produces

A

ethanol and CO2

27
Q

under anaerobic conditions, muscle cells produce:

A

lactate

28
Q

If fermentation follows glycolysis then:

A

the two NADH molecules produced during glycolysis will be used to reduce pyruvate to either lactate or ethanol and CO2

29
Q

Fermentation pathways make no more ATP beyond the small yield from glycolysis. The remaining reactions serve to regenerate:

A

NAD+

30
Q

Excess glucose in the human diet can result in the accumulation of:

A

Fat

31
Q

Glucagon prompts what organs to convert glycogen to glucose?

A

Liver

32
Q

When fats are broken down as energy sources, their components enter:

A

glycolysis and the Krebs cycle

33
Q

When proteins are used as energy sources, their breakdown subunits usually enter:

A

the Krebs cycle