Warm-Up ATP - Edgenuity Inc.

Warm-Up

ATP

Lesson Objectives

By the end of this lesson, you should be able to:

? Identify ATP as a source of

? Describe the role of ATP in

? Describe the role of

processes.

in living organisms other than plants.

Science Practice:

W

2K

for living organisms.

data to formulate a conclusion.

Words to Know

Fill in this table as you work through the lesson. You may also use the glossary to

help you.

an energy-storing molecule in a cell that is composed of

one

adenosine triphosphate

molecule (adenine and

ribose sugar) and three

groups, is

present in all living organisms, and is used to fuel

activities within a cell

cellular respiration

a process that breaks down

to provide

energy in the form of ATP for metabolic processes

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Warm-Up

W

2K

ATP

Words to Know

the first stage of the metabolic pathway of

glycolysis

that results in the

production of ATP

Krebs cycle

the second stage of the metabolic pathway of cellular

respiration that results in the production of

the process by which green plants, algae, and some

photosynthesis

bacteria capture

to form simple

sugars using water and carbon dioxide (CO2), and

release oxygen gas as a byproduct

a membrane-bound compartment inside the

thylakoid

chloroplast, which is the site of the

reaction of

photosynthesis

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Instruction

ATP

Slide

2

2

Lesson

Question

ATP Is Common Fuel for Cells

Adenosine triphosphate

is a high-energy storing molecule in cells.

ATP is composed of:

? one

(adenine and ribose sugar) and

? three

It is present in all living organisms and is used to fuel

within a

cell.

Energy Needs of Cells

Cells use ATP to:

? make

?

for growth and repair.

up chemical reactions.

? transport materials from lower to higher

? make

, starch, and

? break down

?

? generate

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.

.

, such as sugar, starch, and fat.

cilia, flagella, and muscles.

.

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Instruction

ATP

Slide

2

Structure of ATP

ATP is composed of three parts:

? A base,

? A sugar,

?

phosphate groups

That¡¯s why the molecule is called

.

Label the molecule of ATP.

P

P

P

Chemical Energy from ATP

is a molecule that stores and releases

Energy is released when the

.

of the last phosphate group is broken.

With one less phosphate group, the molecule is now

, or ADP.

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Instruction

ATP

Slide

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Energy Storage

? Bonds of

groups are not stable.

? ATP is not good for

energy storage.

? Energy in the bonds of ATP is

to chemical bonds of other

molecules.

? Energy storage takes place in molecules such as

, starches, or

fats.

ADP and ATP Recycling

Draw arrows to the cycling of ATP to ADP and back again.

ATP

ADP + P + energy

ADP + P + energy

6

ATP

How does ATP provide energy for living organisms?

Some ATP is made during

by plants and other

.

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