Memorizing Terms

Question 1

Which of the following best explains why our heart rate increases during exercise?

Answer 1

To pump more oxygen-rich blood to our muscles

Question 2

What term describes the process that occurs in our cells to produce energy during exercise?

Answer 2

Cellular respiration

Question 3

Which of the following is NOT a typical bodily response to exercise?

Answer 3

Decreased body temperature

Question 4

In the chemical equation for cellular respiration, which of these is a reactant?

Answer 4

Food

Question 5

How is the process of burning food outside the body similar to how our bodies use food for energy?

Answer 5

Both processes produce carbon dioxide

Question 6

Which of the following best describes why we breathe faster during exercise?

Answer 6

To take in more oxygen for cellular respiration

Question 7

Why is burning food outside the body similar to food reacting inside the body?

Answer 7

Both the reactants and products are the same

Question 8

What is similar between the food molecules?

Answer 8

They all contain carbon, hydrogen, and oxygen

Question 9

Which of the following is untrue about food molecules?

Answer 9

They all can link together to form more complex molecules

Question 10

Which statement is true?

Answer 10

The more calories you eat, the longer you have to exercise to use up that energy.

Question 11

Why do fats release more energy than carbohydrates or proteins?

Answer 11

The number, type, and arrangement of the atoms in the molecules are different

Question 12

Why are carbohydrates, proteins, and fats the only things considered food?

Answer 12

They provide energy and building materials for the body

Question 13

Food + ___A___ ——> ___B___ + Water

Answer 13

A- Oxygen, B- Carbon Dioxide

Question 14

Scientifically, food must

Answer 14

provide energy and building materials for the body

Question 15

Breaking down large food molecules during digestion is done through:

Answer 15

Chemical reactions

Question 16

If our bodies didn’t digest large food molecules, food molecules could never be small enough to travel through our _______________ to all the body’s cells.

Answer 16

blood cells

Question 17

Starches are …

Answer 17

complex carbohydrates

Question 18

_________________ are catalysts which speed up the process of breaking down food. They are not reactants or products in this process.

Answer 18

enzymes

Question 19

What are the 2 reactants when breaking down a cracker?

Answer 19

water, starches

Question 20

What is the 1 product made when breaking down a cracker?

Answer 20

sugars

Question 21

Describe what happens to these carbs molecules when you digest them.

Answer 21

Carbs molecules are broken down into glucose that we use for energy.

Question 22

When you were chewing crackers in the lab, the crackers were not sweet tasting when you first started chewing them. After a while, the crackers did have a sweeter taste. Why did this happen?

Answer 22

The crackers are made of starch which is not sweet. When the enzymes in your saliva started reacting with the crackers, some of the starch was converted to a simple sugar called glucose, which is sweet tasting.