Molecular Components
Energy
Cell and Body Parts
ATP
What if...?
100
What are the three products of cellular respiration?
Water, ATP, and carbon dioxide
100

Why do organisms undergo the process of cellular respiration?

To convert chemical energy from food into usable energy for the cell

100

What is one example of "work" ATP can do in a cell?

Contract a muscle
100

What is ATP?

adenosine triphosphate

100

What types of organisms go through cellular respiration?

all organisms

200

What are the four reactants of cellular respiration?

glucose, oxygen, ADP, P

200
What part of a molecule contains the chemical energy?

The chemical bonds

200

List the body parts involved in transporting oxygen to cells

nose/mouth, trachea, lungs, bloodstream

200

____ is like an empty battery and _____ is like a fully charged battery.

ADP; ATP

200

What would happen to the amount of cellular respiration someone's body is capable of if the person hasn't eaten in several hours? Why?

It would decrease because they wouldn't have enough glucose.

300

Where does your body get each of the reactants of cellular respiration? (Ignore ADP for this question)

Glucose: Food

Oxygen: air

P: Food

300
When a chemical bond is formed, energy is _________. When a chemical bond breaks, energy is ____________.

stored; released

300

List all the body parts we've talked about that allow glucose to get to cells

mouth, stomach, intestines, bloodstream

300

Where is the chemical energy in ATP stored that is used to do work in the cell?

In the bond between the 2nd and 3rd phosphates.

300
What is the connection between photosynthesis and cellular respiration?
What one makes the other uses and vice versa
400

Explain why this equation does not follow the law of conservation of matter:

C6H12O6  + 6O2  ---->   6CO2 + 6H2O + 36 ATP

ATP "comes out of nowhere", which is impossible. The atoms that make up that molecule should be shown on the reactant side of the equation, too.

400

Does 1 molecule of glucose or 1 molecule of ATP contain more energy? Explain how you know.

1 molecule of glucose contains more energy because it is able to "recharge" 36 ADP into 36 ATP.

400

Where do most of the chemical reactions for cellular respiration take place?

in the mitochondria

400

About how many ATP molecules are produced if cellular respiration is successfully carried out?

36

400

Which type of body cells do you think contain the highest amount of mitochondria?

Cells that do a lot of "work", e.g. muscle cells

500

What is the equation for cellular respiration?

C6H12O6  + 6O2 + 36 ADP + 36 P ---->   6CO2 + 6H2O + 36 ATP

500

What happens to glucose when it is turned into pyruvic acid?

It is split in half, releasing energy

500

1. Does the reaction ADP + P --> ATP store or release energy? Why?

2. Does the reaction ATP --> ADP + P store or release energy? Why?

(250 each)

1. releases energy because a bond is broken

2. stores energy because a bond is formed

500

Explain how ATP functions like a battery in your cells.

ATP delivers just enough energy to power celllular processes, like a battery delivers just enough energy to power a device like a phone. ATP is rechargable, like many batteries, and needs to be connected to a power source (glucose) in order to get "recharged".

500

Where do you think water "goes" after it is produced by cellular respiration?

Any reasonable idea accepted! Some answers might include: 

-we breathe out water (have you ever fogged up a window by breathing on it?)

-we sweat out water

-water exits in urine and feces

-our bodies use the water for some other chemical reaction(s)

-water stays in our bodies as an important component of our cells

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