Ch. 11 Respiration and gas exchange !!!

Question 1

What do our cells need energy for?

Answer 1

1. Contracting muscles
2. Making proteins
3. Cell division
4. Active transport
5. Growth
6. Transmitting nerve impulses

Question 2

What’s aerobic respiration?

Answer 2

Our cells release energy from glucose by combining it with oxygen

Question 3

Where does aerobic respiration take place?

Answer 3

In mitochondria

Question 4

Equation of aerobic respiration?

Answer 4

C6H12O6 + 602 –> 6CO2 + H20

Question 5

What’s anaerobic respiration?

Answer 5

Glucose releases energy without oxygen

Question 6

Where does anaerobic respiration happen?

Answer 6

Cytoplasm

Question 7

Yeast and anaerobic respiration?

Answer 7

Uses glucose to make alcohol and carbon dioxide

Question 8

Can muscle cells anaerobic breathe?

Answer 8

Just for a small period of time, make lactose acid and no carbon dioxide

Question 9

Where is oxygen obtained from?

Answer 9

From air (terrestrial organisms) or oxygen contained in water (aquatic organisms)

Question 10

What is gas exchange?

Answer 10

The diffusion of carbon dioxide and oxygen in and out of system

Question 11

Where does gas exchange happen?

Answer 11

There are surfaces for it

Question 12

What are the characteristics of gas exchange surfaces?

Answer 12

Thin to allow gases to diffuse
Large surface ara
Good supply of oxygen

Question 13

What are alveoli?

Answer 13

Tiny air filled sacs in the lungs where gas exchange takes place

Question 14

What happens in alveoli?

Answer 14

Oxygen diffuses into the blood

Question 15

What are inside nose?

Answer 15

Thin bones covered with a thin layer of cells

Question 16

What do goblet cells do?

Answer 16

Make liquid containing water and mucus

Question 17

What do cilia do?

Answer 17

Sweep mucus up to back of throat

Question 18

Where are goblet cells and cilia located?

Answer 18

Along trachea and bronchi

Question 19

What happens to air after it enters from mouth/nose?

Answer 19

Goes into trachea

Question 20

What does trachea have? What’s their purpose?

Answer 20

Rings of cartilage around it, prevent trachea from collapsing

Question 21

Where does trachea go next?

Answer 21

Into thorax

Question 22

What happens to trachea after it reaches lungs?

Answer 22

Divides into two bronchi

Question 23

What happens to bronchi?

Answer 23

Become smaller and become bronchioles

Question 24

What’s ventilation?

Answer 24

The movement of air into and out of the lungs

Question 25

What are the breathing movements of inspiration?

Answer 25

1. Muscle of diaphragm contract
2. Pulls diaphragm down
3. Increases volume of thorax
4. Intercostal muscles contract

Question 26

What are the movements of expiration?

Answer 26

1. Diaphragm relaxes
2. Diaphragm raises
3. Volume of thorax decreases
4. Intercostal muscles relax

Question 27

What happens when you do vigorous exercise?

Answer 27

Muscles do anaerobic respiration

Question 28

What happens when you do anaerobic respiration?

Answer 28

Glucose gets broken down into lactic acid and energy

Question 29

What happens with lactic acid produced by anaerobic respiration in muscles?

Answer 29

Gets broken down by liver cells by combinig it with oxygen