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Biology > Unit 4 - bioenergetics > Flashcards

Unit 4 - bioenergetics Flashcards

1
Q

Equation for photosynthesis

A

Carbon dioxide + water —>glucose + oxygen

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2
Q

Symbol equation for photosynthesis

A

6CO2 + 6H20 —-> C6H12O6 + 6O2

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3
Q

How is glucose used in plants

A

For respiration
Making cellulose (strengthen cell wall)
Stored as starch
Making amino acids (glucose + nitrate ions from soil)

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4
Q

Limiting factors for photosynthesis

A

Light intensity, co2 concentration, temperature

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5
Q

Ideal conditions for photosynthesis

A

Grow them in a greenhouse this helps trap the suns heat

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6
Q

What is respiration

A

Process of transferring energy from glucose which goes on in every cell

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7
Q

Examples why respiration is needed

A

To allow muscles to contract
Keep their body temp constant

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8
Q

What is metabolism

A

All chemical reactions in an organism

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9
Q

Equation for aerobic respiration

A

Glucose + oxygen —> carbon dioxide + water

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10
Q

Where does aerobic respiration occur

A

In the mitochondria

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11
Q

Anaerobic respiration equation

A

Glucose —> lactic acid + carbon dioxide

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12
Q

Where does anaerobic respiration occur

A

Cytoplasm

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13
Q

What is metabolic rate

A

Rate of chemical reactions in the body

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14
Q

Factors that affect a persons metabolic rate

A

Gender, age, BMI, genetics

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15
Q

2 changes someone could make to live longer

A

Increase exercise, reduce food intake

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16
Q

Why is LED light used in photosynthesis RPA

A

Does not release much heat

17
Q

In photosynthesis RPA what should you do if you are using a normal bulb

A

Place beaker of water between light and tube this will absorb heat

18
Q

Why is sodium carbonate used in photosynthesis RPA

A

Releases CO2 which is needed for photosynthesis

19
Q

Problems with photosynthesis RPA

A

-number of bubbles may be too fast to count
-bubbles are not always sams sizs

20
Q

Alternate way of doing RPA photosynthesis so you don’t have to count bubbles

A

Instead catches the bubbles in a measuring cylinder so you can then measure the volume of bubbles

21
Q

What is glycogen

A

Storage form of glucose

22
Q

In cells where do you find lipids

A

Cell membrane

23
Q

What molecules make a lipid

A

1 glycerol molecule and 3 fatty acid molecules

24
Q

What is oxygen debt

A

The amount of extra oxygen the body needs after exercising to deal with accumulated lactic acid

25
Q

What will happen of you use normal light not LED light in photosynthesis RPA

A

Temperature will cause bubbles of gas to be produced faster and therefore the rate of photosynthesis would be faster

26
Q

Products of anaerobic respiration in plants

A

Ethanol and carbon dioxide

Biology (6 decks)

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