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Biology > Homeostasis And Response (Main Organs) > Flashcards

Homeostasis And Response (Main Organs) Flashcards

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1
Q

The heart:

What are the four chambers of the heart?

A

Right Atrium
Left Atrium
Right ventricle
Left ventricle

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2
Q

The heart:

What goes into the Vena Cava?

A

Deoxygenated blood from the body.

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3
Q

The heart:

What leaves the Aorta?

A

Oxygenated blood to go around the body.

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4
Q

The heart:

What goes through the pulmonary vein?

A

Oxygenated blood from the lungs.

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5
Q

The heart:

What’s the importance of the valves?

A

They stop back flow of the blood.

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6
Q

The heart:

What are the components of the blood?

A

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

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7
Q

The heart:

What is the role of plasma?

A

It carries CO2

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8
Q

The heart:

What do Arteries do?

A

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

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9
Q

The heart:

What do Veins do?

A

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

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10
Q

The heart:

What is the role of Capillaries?

A

They join Arteries and veins through organs.

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11
Q

The eye:

What is the role of the cornea?

A

Refracts light rays

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12
Q

The eye:

What controls the shape of the lens?

A

Suspensory ligaments

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13
Q

The eye:

How does the eye focus on near objects?

A

Ciliary muscles contract and suspensory ligaments loosen

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14
Q

The eye:

What is myopia?

A

Short-sightedness

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15
Q

The eye:

What type of glasses do people need with myopia?

A

Concave

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16
Q

The eye:

Why do people with hyperopia need thicker glasses?

A

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

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17
Q

The eye:

What can people with hyperopia not see very clearly?

A

Near objects

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18
Q

The eye:

Why can the retina detect the light?

A

Contains light receptors

19
Q

The eye:

What is accommodation?

A

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

20
Q

The eye:

Where does the image fall for people with myopia?

A

In front of the retina

21
Q

The eye:

Where does the image fall for people with hyperopia?

A

Behind the retina

22
Q

Endocrine system:

What type of organ is the pancreas?

A

A gland

23
Q

Endocrine system:

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

A

Insulin

24
Q

Endocrine system:

What does released insulin do to the glucose?

A

Makes it move out the blood into body cells

25
Q

Endocrine system:

What does insulin make the liver do?

A

Coverts glucose into glycogen

26
Q

Endocrine system:

What is glycogen?

A

A carbohydrate to be stored

27
Q

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

A

Releases glucagon

28
Q

Endocrine system:

What does released glucagon cause the liver to do? Why?

A

Turn glycogen back into glucose
To raise blood glucose levels

29
Q

Endocrine system:

What can people with type 1 diabetes not do?

A

Produce enough insulin to lower glucose levels

30
Q

Endocrine systems:

How is type 1 diabetes treated?

A

Insulin injections

31
Q

Endocrine system:

What can people with type 2 diabetes not do well?

A

Cells can’t respond to insulin

32
Q

Endocrine system:

How can you treat type 2 diabetes?

A

Do more exercise
Eat less fatty and sugary foods

33
Q

Human digestive system:

What is bile?
Why?

A

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

34
Q

Human digestive system:

Where is bile made?

A

In the liver

35
Q

Human digestive system:

Where is bile stored?

A

Gall bladder

36
Q

Human digestive system:

Where is bile released to? When?

A

Small intestine
After eating

37
Q

Human digestive system:

How do you calculate rate of enzyme reaction?

A

1
———
Time

38
Q

Human digestive system:

Where is Lipase produced?

A

Pancreas + small intestine

39
Q

Human digestive system:

Where is amylase produced?

A

Salivary glands, pancreas and small intestine

40
Q

Human digestive system:

Where is protease produced?

A

Stomach + pancreas + small intestine

41
Q

Human digestive system:

What does lipase break down? Into what?

A

Lipids -> fatty acids + glycerol

42
Q

Human digestive system:

What does amylase break down? Into what?

A

Carbohydrates -> glucose

43
Q

Human digestive system:

What does protease break down? Into what?

A

Protein -> amino acids

44
Q

Human digestive system:

What fits into the enzyme?

A

Substrate

Biology (5 decks)

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