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Biology > Chapter 10 quiz > Flashcards

Chapter 10 quiz Flashcards

1
Q

How do organisms get their energy?

A

From food

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2
Q

Calorie is the amount of energy need to…

A

raise the temperature of 1 gram of water by 1 degree Celsius

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3
Q

What is the calories in food actually called and how many small calories is it

A

It is a kilocalorie and it is 1000 calories

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4
Q

How many calories of heat energy does 1 gram of sugar glucose release?

A

3811 calories

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5
Q

How many calories does 1 gram of fat found in beef release?

A

8893 calories

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6
Q

How many calories do proteins and carbohydrates contain?

A

4000

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7
Q

How many calories do fats contain?

A

9000

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8
Q

What is cellular respiration?

A

A process of energy conversion that releases energy from food in the presence of oxygen

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9
Q

What is the chemical equation for cellular respiration?

A

6O2 + C6H12O6 –> 6Co2 + 6H2O + energy

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10
Q

Why does cellular respiration not happen all at once?

A

The cell has to release a little energy at a time and trap it in ATP

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11
Q

What is the first stage of cellular respiration?

A

Glycolysis

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12
Q

What happens in glycolysis?

A

-10% of energy is captured to produce ATP -90% of the energy in glucose is still available at the end of this stage locked in bonds of pyruvic acid

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13
Q

What is the second stage of cellular respiration?

A

Krebs cycle

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14
Q

What happens in the Krebs cycle?

A

Pyruvic acid enters

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15
Q

What is the third stage of cellular respiration?

A

Electron transport chain

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16
Q

What happens in the electron transport chain?

A

-Most of the energy is released
-Oxygen is used

17
Q

What is the world’s most powerful electron acceptor?

A

Oxygen

18
Q

What do most of the energy releasing pathways within cells require and what does this cause?

A

They require oxygen which is what makes us have to breathe

19
Q

True or false: Aerobic means it does NOT require oxygen

A

False

20
Q

True or false: Anaerobic means it does NOT require oxygen

A

True

21
Q

Where does glycolysis occur?

A

In the cytoplasm

22
Q

Where does the Krebs cycle and electron transport chain occur?

A

In the mitochondria

23
Q

True or false: photosynthesis deposits energy

A

True

24
Q

True or false: cellular respiration withdraws energy

A

True

25
Q

How do photosynthesis and cellular respiration use carbon dioxide?

A

Photosynthesis takes it from the air and cellular respiration puts it back

26
Q

How do photosynthesis and cellular respiration use oxygen?

A

Photosynthesis deposits it and cellular respiration use it to release energy in food

Biology (3 decks)

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