Chapter 6/Lesson 2

Question 1

Cellular Respiration

Answer 1

The process in which cells use oxygen and food molecules to release the energy in food. Occurs in every cell in an animals body.

Question 2

Carbon Dioxide

Answer 2

Waste product of cellular respiration. Tends to diffuse ot of cells.

Question 3

Diffusion

Answer 3

Process of movement of gas from high to low concentration. Cells tend to have lower oxygen concentrations, so oxygen will tend to diffuse from the outside into a cell.

Question 4

Respiratory System

Answer 4

The structures an animal uses to exchange gasses with its surroundings; skin, gills and lungs. Type depends upon how complex the animal is and where it lives.

Question 5

Gills

Answer 5

Feather like structures where gases is exchanged from water to blood.

Question 6

Lungs

Answer 6

Sack like structures made up of a thin layer of cells where gases are exchanged between air and blood. Located inside the body where they can stay moist.

Question 7

Cnidarians

Answer 7

Water animals that use their outer body coverings for gas exchange.

Question 8

Land Animal Respiratory Structures

Answer 8

Have a common trait; a thin layer of moist cells. In more complex animals their lungs have layers and pockets to change gas.

Question 9

Land Invertebrates Respiratory Structures

Answer 9

Skin, book lungs and tracheal tubes.

Question 10

Mammal Lungs

Answer 10

Large and have additional pockets to make them more efficient.

Question 11

Air Sack

Answer 11

Sack like organs in a birds body that helps them receive enough oxygen to process energy from food.