Homeostasis And Response (Main Organs)

Question 1

The heart:

What are the four chambers of the heart?

Answer 1

Right Atrium
Left Atrium
Right ventricle
Left ventricle

Question 2

The heart:

What goes into the Vena Cava?

Answer 2

Deoxygenated blood from the body.

Question 3

The heart:

What leaves the Aorta?

Answer 3

Oxygenated blood to go around the body.

Question 4

The heart:

What goes through the pulmonary vein?

Answer 4

Oxygenated blood from the lungs.

Question 5

The heart:

What’s the importance of the valves?

Answer 5

They stop back flow of the blood.

Question 6

The heart:

What are the components of the blood?

Answer 6

Plasma, white blood cells, red blood cells and platelets.

Question 7

The heart:

What is the role of plasma?

Answer 7

It carries CO2

Question 8

The heart:

What do Arteries do?

Answer 8

Move blood away from heart and around the body. (High pressure).

Question 9

The heart:

What do Veins do?

Answer 9

Move blood from organs to the heart (low pressure).

Question 10

The heart:

What is the role of Capillaries?

Answer 10

They join Arteries and veins through organs.

Question 11

The eye:

What is the role of the cornea?

Answer 11

Refracts light rays

Question 12

The eye:

What controls the shape of the lens?

Answer 12

Suspensory ligaments

Question 13

The eye:

How does the eye focus on near objects?

Answer 13

Ciliary muscles contract and suspensory ligaments loosen

Question 14

The eye:

What is myopia?

Answer 14

Short-sightedness

Question 15

The eye:

What type of glasses do people need with myopia?

Answer 15

Concave

Question 16

The eye:

Why do people with hyperopia need thicker glasses?

Answer 16

To increase refraction (bending of light) so the image can fall ON the retina rather than behind.

Question 17

The eye:

What can people with hyperopia not see very clearly?

Answer 17

Near objects

Question 18

The eye:

Why can the retina detect the light?

Answer 18

Contains light receptors

Question 19

The eye:

What is accommodation?

Answer 19

Lens changing the shape to help focus on both near and far objects

Question 20

The eye:

Where does the image fall for people with myopia?

Answer 20

In front of the retina

Question 21

The eye:

Where does the image fall for people with hyperopia?

Answer 21

Behind the retina

Question 22

Endocrine system:

What type of organ is the pancreas?

Answer 22

A gland

Question 23

Endocrine system:

What does the pancreas release if glucose levels are too high?

Answer 23

Insulin

Question 24

Endocrine system:

What does released insulin do to the glucose?

Answer 24

Makes it move out the blood into body cells

Question 25

Endocrine system: What does insulin make the liver do?

Answer 25

Coverts glucose into glycogen

Question 26

Endocrine system: What is glycogen?

Answer 26

A carbohydrate to be stored

Question 27

What does the pancreas do if blood glucose concentration is too low?

Answer 27

Releases glucagon

Question 28

Endocrine system: What does released glucagon cause the liver to do? Why?

Answer 28

Turn glycogen back into glucose To raise blood glucose levels

Question 29

Endocrine system: What can people with type 1 diabetes not do?

Answer 29

Produce enough insulin to lower glucose levels

Question 30

Endocrine systems: How is type 1 diabetes treated?

Answer 30

Insulin injections

Question 31

Endocrine system: What can people with type 2 diabetes not do well?

Answer 31

Cells can’t respond to insulin

Question 32

Endocrine system: How can you treat type 2 diabetes?

Answer 32

Do more exercise Eat less fatty and sugary foods

Question 33

Human digestive system: What is bile? Why?

Answer 33

Breaks down fats into small droplets. To make it easy to digest because of the increased surface area

Question 34

Human digestive system: Where is bile made?

Answer 34

In the liver

Question 35

Human digestive system: Where is bile stored?

Answer 35

Gall bladder

Question 36

Human digestive system: Where is bile released to? When?

Answer 36

Small intestine After eating

Question 37

Human digestive system: How do you calculate rate of enzyme reaction?

Answer 37

1 ——— Time

Question 38

Human digestive system: Where is Lipase produced?

Answer 38

Pancreas + small intestine

Question 39

Human digestive system: Where is amylase produced?

Answer 39

Salivary glands, pancreas and small intestine

Question 40

Human digestive system: Where is protease produced?

Answer 40

Stomach + pancreas + small intestine

Question 41

Human digestive system: What does lipase break down? Into what?

Answer 41

Lipids -> fatty acids + glycerol

Question 42

Human digestive system: What does amylase break down? Into what?

Answer 42

Carbohydrates -> glucose

Question 43

Human digestive system: What does protease break down? Into what?

Answer 43

Protein -> amino acids

Question 44

Human digestive system: What fits into the enzyme?

Answer 44

Substrate