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Biology - 6th Year > Respiration > H.L > Flashcards

Respiration > H.L Flashcards

1
Q

Yeast produce produce alcohol (ethanol) in a process called

A

Fermentation

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2
Q

Which substance did the yeast make alcohol

A

Glucose

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3
Q

Optimum temperature for fermentation to take place

A

30 degrees Celsius

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4
Q

How to maintain a constant temperature

A

Place in waterbath

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5
Q

How did u know fermentation was finished

A

No bubbles of CO2 left

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6
Q

How did I test for the presence of alcohol

A

Add potassium and sodium hypochlorite and heat to 55 degrees Celsius

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7
Q

Color of the Positive result

A

Pale yellow crystals in a clear solution

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8
Q

How to u ensure reactants are maintained at a constant pH

A

Using a buffer solution

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9
Q

How to u ensure reactants are maintained at a constant temperature

A

Using a waterbath

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10
Q

Products used during termination to make alcohol

A

Ethanol

Co2

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11
Q

What fest did u use to confirm the presence of alcohol

A

Potassium iodine

Sodium hypochlorite

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12
Q

If there are 6 carbon atoms, what is the compound?

A

Glucose

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13
Q

If there are 3 carbon atoms, what is the compound?

A

Pyruvic acid

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14
Q

If there are 2 carbon atoms, what is the compound?

A

Acetyl co. A

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15
Q

Aerobic respiration occurs in the

A

Cytosol and mitochondria

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16
Q

Glycolysis is a

A

Anaerobic respiration

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17
Q

What releases more energy than aerobic respiration

A

Fermentation

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18
Q

What does ADP require to produce ATP

A

An input of energy

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19
Q

NAD

A

Nicotinomid adenine dinucleotide

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20
Q

Two types of particles transferred by NAD

A

Protons and electrons

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21
Q

3-carbon molecule in both aerobic and anaerobic

A

Pyruvic acid

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22
Q

Biochemical pathway which this compound is produced

A

Glycolysis

23
Q

Muscles

A

Lactic acid

24
Q

Yeast

A

Ethonal

Co2

25
Balanced equation
C6H12O6 6O2 -> 6CO2 + 6H2O + energy
26
Storage location in humans from which glucose is produced
Glycogen
27
Major storage location of glycogen
Liver
28
What happens to pyruvate molecules that prepare them for the Krebs cycle
Pyruvate enger the mitochondrion and lose co2 molecule to form 2 carbon molecule called Acetyl co. A
29
What is the final electron acceptor in aerobic respiration
The low energy electrons at the at the end of the transport chain and passed to a proton, which combines with o2 to form h2o
30
Cytosol
Cytoplasm without organelles
31
When does fermentation kick in
Lack of oxygen due to unfitness
32
End products of anaerobic respiration
Lactic acid Carbon dioxide Water
33
In anaerobic respiration, pyruvic acid forms
Ethanol and co2 | Lactic acid
34
How is lactic acid formed from NADH
2 NADH break down into 2 protons and 2 electrons + pyruvic acid
35
Where does anaerobic respiration occur
Only in the cytosol
36
What happens to the energy not used up in the production of ATP
It is lost as heat
37
Name stage one and two of aerobic respiration
Glycolysis | Krebs cycle
38
Stage one requires
No oxygen
39
Site of stage 1
Cytosol
40
How is ATP formed
ADP + P and energy from glucose
41
Products of glycolysis
Pyruvic acid | Small amount of energy
42
Sure of stage 2
Mitochondria
43
Stage 2 requires
Oxygen
44
What is pyruvate broken down into in Krebs cycle
Molecule of co2 and 2 carbon molecules
45
What is the name of the carbon molecules in the Krebs cycle
Acetyl co A
46
How is NADH formed
Hydrogen ions + electrons are released and combine with NAD+
47
What are transported to the electron transport system
High energy electrons
48
What does pyruvic acid lose in stage 2
Co2 molecule | 2 high energy electrons
49
What enter an electron transport system
NADH
50
Krebs cycle requires
Oxygen
51
What does acetyl co A go through in the Krebs cycle
Mitochondrion and a series of reactions
52
Site of electron transport system
Cristae (folds) of mitochondria
53
What does the ETS produce
Large amounts of ATP
54
What does ETS require
Oxygen

Biology - 6th Year (21 decks)

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