Unit 4 Photosynthesis & Cellular Respiration Study Guide CP2 Flashcards

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1
Q

What is energy?

A

Energy is the ability to do work

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2
Q

What is the function of ATP and what does it stand for?

A

ATP stores and releases energy and stands for adenosine triphosphate

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3
Q

How is energy released from ATP?

A

The high energy bond between the 2nd and 3rd phosphates is broken.

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4
Q

What is photosynthesis?

A

converting water and carbon dioxide into glucose and oxygen, using light energy

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5
Q

Define autotroph and give an example of one.

A

an organism that makes its own food (usually with light energy)

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6
Q

Define heterotroph and give an example of one.

A

an organism that consumes food for energy (or decomposes other organisms)

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7
Q

What do plants take IN during photosynthesis?

A

Carbon dioxide, water, & sunlight

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8
Q

What do plants give OFF during photosynthesis?

A

Oxygen & Glucose (sugar)

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9
Q

Write the equation for photosynthesis.

A

In words: Carbon Dioxide + Water (presence of light) → Oxygen + Glucose

Chemical formula: 6CO2 + 6H2O (light) → 6O2 + C6H12O6

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10
Q

What is the main pigment in plants? What color does it not absorb well (reflects?)

A

Chlorophyll → does not absorb green light

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11
Q

What are the 3 major factors that can affect the rate of photosynthesis?

A

Light intensity, temperature, amount of water.

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12
Q

What is the definition of cellular respiration?

A

Process that releases energy from food in the presence of oxygen

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13
Q

Write the equation for Cellular Respiration:

A

In words: Glucose + Oxygen → Carbon Dioxide + Water + ATP

In chemical symbols: C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP

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14
Q

How are the reactants & products of cellular respiration and photosynthesis related?

A

They are almost opposite reactions. The products of photosynthesis are the reactants of cellular respiration and the products of cellular respiration are the reactants of photosynthesis.

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15
Q

aerobic

A

aerobic refers to a process that uses oxygen.

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16
Q

anaerobic

A

anaerobic refers to a process that does not use oxygen.

17
Q

What process allows cells to generate ATP without oxygen being present?

A

Fermentation