Chapter 4.3

Question 1

Molecules

Answer 1

Two or more atoms joined together, forming a small particles.

Question 2

Organelles

Answer 2

Small structure in a cell with a special function.

Question 3

Tissues

Answer 3

Groups of cells performing the same function

Question 4

Systems

Answer 4

Group of organs working together

Question 5

Respiratory system

Answer 5

Performs a gas exchange to remove the waste gas Corbin dioxide

Question 6

Circulatory system

Answer 6

The body system that circulates oxygen in blood to all the cells of the body.

Question 7

Blood cells

Answer 7

Any of the many types of cells found I’m blood including red and white blood cells

Question 8

Blood vessels

Answer 8

The blood flow around the body

Question 9

Veins

Answer 9

Blood vessels that carry blood back to the heart.

Question 10

Digestive system

Answer 10

A hard set of organs and glands that processes food to supply the body with the nutrients it needs to function effectively

Question 11

Excretory system

Answer 11

The body system that removes waste substances from the body

Question 12

Musculoskeletal system

Answer 12

Bones working together

Question 13

Reproductive system

Answer 13

Reproductive organs, which differ between males and females

Question 14

Nervous system

Answer 14

The system of nerves and nerve centres in an animal in which messages are sent

Question 15

Endocrine system

Answer 15

Glass that produce and secrete hormones into the bloodstream to regulate processes in various organs

Question 16

Capillaries

Answer 16

Minute tubes carrying blood body cells, every cell of the body is supplied with blood though capillaries

Question 17

Mechanical Digestion

Answer 17

digestion that uses physical factors such as chewing with the teeth

Question 18

Chemical digestion

Answer 18

the chemical reactions changing food into simpler substances that are absorbed into the bloodstream for use in other parts of the body

Question 19

Alimentary canal

Answer 19

passage from the mouth to the anus. Digestion of food occurs as it moves through the canal.

Question 20

Enzymes

Answer 20

special chemicals that speed up reactions but are themselves not used up in the reaction

Question 21

Saliva

Answer 21

Liquid produced in a humans mouth under the tongue used to breakdown food

Question 22

Salivary glands

Answer 22

glands in the mouth that produce saliva

Question 23

Bolus

Answer 23

round, chewed-up ball of food made in the mouth that makes swallowing easier