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End Show Slide 1 of 20 Mr. Karns Mr. Karns Energy Energy and and ATP ATP
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End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

Dec 31, 2015

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Page 1: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 1 of 20

Mr. KarnsMr. Karns

EnergyEnergyand and ATPATP

Page 2: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy and Life

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8-1 Energy And Life

Slide 3 of 20

Autotrophs and Heterotrophs

Living things need energy to survive.

This energy comes from food. The energy in most food comes from the sun.

Where do plants get the energy they need to produce food?

Page 4: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 4 of 20

8-1 Energy And Life Autotrophs and Heterotrophs

Autotrophs and Heterotrophs

Plants and some other types of organisms are able to use light energy from the sun to produce food.

Page 5: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Autotrophs and Heterotrophs

• Organisms, such as plants, which make their own food, are called autotrophs.

• Organisms, such as animals, that must obtain energy from the foods they consume are heterotrophs.

• Troph mean nourished or “fed”

Page 6: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Chemical Energy and ATP

Chemical Energy and ATP

Energy comes in many forms including light, heat, and electricity, chemicals.

Energy can be stored in chemical compounds, too.

In living things, energy is converted to useable energy, not destroyed or created.

Page 7: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life

Slide 7 of 20

Chemical Energy and ATP

An important chemical compound that cells use to store and release energy is adenosine triphosphate, abbreviated ATP.

ATP is used by all types of cells as their basic energy source.

Page 8: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Chemical Energy and ATP

ATP consists of:

• adenine

• ribose (a 5-carbon sugar)

• 3 phosphate groups

Adenine

ATP

Ribose 3 Phosphate groups

Page 9: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 9 of 20

8-1 Energy And Life Chemical Energy and ATP

The three phosphate groups are the key to ATP's ability to store and release energy.

Page 10: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Chemical Energy and ATP

Storing Energy

ADP has two phosphate groups instead of three.

A cell can store small amounts of energy by adding a phosphate group to ADP.

ADPATP

Energy

Energy

Partiallycharged battery

Fullycharged battery

+

Adenosine Diphosphate (ADP) + Phosphate

Adenosine Triphosphate (ATP)

Page 11: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Chemical Energy and ATP

Releasing Energy

Energy stored in ATP is released by breaking the chemical bond between the second and third phosphates.

P

ADP

2 Phosphate groups

Page 12: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life

Slide 12 of 20

Chemical Energy and ATP

What is the role of ATP in cellular activities?

Page 13: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1 Energy And Life Chemical Energy and ATP

The energy from ATP is needed for many cellular activities, including active transport across cell membranes, protein synthesis and muscle contraction.

ATP’s characteristics make it exceptionally useful as the basic energy source of all cells.

Page 14: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 14 of 20

8-1 Energy And Life Using Biochemical Energy

Using Biochemical Energy

Most cells have only a small amount of ATP, because it is not a good way to store large amounts of energy.

Cells can regenerate ATP from ADP as needed by using the energy in foods like glucose.

Page 15: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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- or -Continue to: Click to Launch:

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8-1

Page 16: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1

Organisms that make their own food are called

a. autotrophs.

b. heterotrophs.

c. decomposers.

d. consumers.

Page 17: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 17 of 20

8-1

Most autotrophs obtain their energy from

a. chemicals in the environment.

b. sunlight.

c. carbon dioxide in the air.

d. other producers.

Page 18: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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Slide 18 of 20

8-1

How is energy released from ATP?

a. A phosphate is added.

b. An adenine is added.

c. A phosphate is removed.

d. A ribose is removed.

Page 19: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1

How is it possible for most cells to function with only a small amount of ATP?

a. Cells do not require ATP for energy.

b. ATP can be quickly regenerated from ADP and P.

c. Cells use very small amounts of energy.

d. ATP stores large amounts of energy.

Page 20: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

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8-1

Compared to the energy stored in a molecule of glucose, ATP stores

a. much more energy.

b. much less energy.

c. about the same amount of energy.

d. more energy sometimes and less at others.

Page 21: End Show Slide 1 of 20 Mr. Karns Energy and ATP. End Show Slide 2 of 20 8-1 Energy and Life.

END OF SECTION