Science test 3.1

Question 1

Food provides…

Answer 1

energy and building materials

Question 2

Different types of food molecules, when reacting with…

Answer 2

oxygen, produce different amounts of energy.

Question 3

The difference in the amount of energy that carbohydrates, proteins, and fats have the capacity to provide is due…

Answer 3

the difference in the arrangement and number of different types of atoms in the molecules.

Question 4

Large food molecules are broken…

Answer 4

down through a chemical reaction called hydrolysis.

Question 5

Organisms build up new molecules…

Answer 5

through a chemical reaction

Question 6

These molecules are used for…

Answer 6

growth and repair

Question 7

When food molecules are not used immediately, organisms can…

Answer 7

store them for short or long periods of time for energy or to be used as building materials.

Question 8

Carbohydrates subunit

Answer 8

“Sugar” or Saccharide

Question 9

Proteins subunit

Answer 9

“Amino Acids”

Question 10

Fats subunit

Answer 10

“Fatty acids”

Question 11

Carbohydrates formula

Answer 11

C6,H2,O6

Question 12

Carbohydrates atoms

Answer 12

C,H,O

Question 13

Proteins formula

Answer 13

C3,H7,O2,N2

Question 14

Proteins atoms

Answer 14

C,H,O,N

Question 15

Fats formula

Answer 15

C56,H110,O6

Question 16

Fats atoms

Answer 16

C,H,O

Question 17

Describe what an enzyme does to help digestion

Answer 17

Enzymes help speed up the breakdown of food molecules.

Question 18

Describe the reaction we studied that breaks down food molecules

Answer 18

HYDROLYSIS

Question 19

Describe the reaction we studied that builds up food molecules

Answer 19

dehydration synthesis- when two molecules combine by removing water

Question 20

Metabolism

Answer 20

A chemical reaction in living things that involve breaking down food and building up new structures

Question 21

Leucine

Answer 21

An essential amino acid subunit for proteins that must be eaten, not made by our body

Question 22

Nitrogen Isotopes

Answer 22

Atoms
that have more mass for tracking, rarely found in nature

Question 23

song/Dance:

Answer 23

break it down/build it up