Science Flashcards

1
Q

What is a cell that has no nucleus called?

A

Prokaryote.

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2
Q

What is a cell that does have a nucleus and cell membrane called?

A

Eukaryote.

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3
Q

What is an organism that makes its own food called?

A

Autotroph.

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4
Q

What is an organism that must eat other things for energy called?

A

Heterotroph.

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5
Q

How are body cells made for growth and repair made?

A

Mitosis.

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6
Q

How are gametes (sex cells) made?

A

Meiosis.

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7
Q

Where is the sternum located?

A

At the center and front of your chest.

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8
Q

What is the skeletal system made of?

A

Bones, joints, cartilage.

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9
Q

What does yellow bone marrow do?

A

Store fat.

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10
Q

What does red bone marrow do?

A

Produce red blood cells.

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11
Q

What is a skeletal muscle?

A

A voluntary, striated muscle that is attached to your bone.

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12
Q

Are muscles the only type of tissue that can contract?

A

Yes.

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13
Q

What is a cardiac muscle?

A

The heart-involuntary and striated.

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14
Q

What is fast twitch for?

A

Fast movements, reflexes.

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15
Q

What is an example of a smooth muscle?

A

Stomach, intestines, uterus

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16
Q

What is slow twitch used for?

A

Leaning, posture, sitting.

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17
Q

What is included in the nervous system?

A

Spinal cord, brain, nerves.

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18
Q

What is a stimulus?

A

A reaction to what is going on in the environment around you.

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19
Q

What does the nervous system do?

A

Sends signals to your body on how to react based on what is going on around you.

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20
Q

What is a nerve cell called?

A

Neuron.

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21
Q

What is the difference between the central and peripheral nervous systems?

A

Central is brain and spinal cord, while peripheral is everything else.

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22
Q

What is the difference between somatic and autonomic systems?

A

Somatic is voluntary, while autonomic is involuntary.

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23
Q

What is an example of the integumentary system?

A

Skin, hair, nails, special glands, nerves.

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24
Q

How does skin protect us?

A

Shock absorption and keeping germs out and insides in.

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25
Q

What are the three main functions of the integumentary system?

A

To protect, regulate, and sense.

26
Q

Are microorganisms important to your skin’s immunity?

A

Yes.

27
Q

Which other body systems interact with the integumentary system to regulate body temp?

A

Nervous, muscular, and circulatory systems.

28
Q

What are three ways body temp is regulated?

A

Goosebumps, sweat, and shivering.

29
Q

What is the main function of the skeletal system?

A

Shape and support.

30
Q

What is the main function of the nervous system?

A

Sensation.

31
Q

What is the main function of the muscular system?

A

Movement, pumping blood, etc.

32
Q

What is the main function of the integumentary system?

A

The body’s boundary.

33
Q

What are the main parts of the muscular system?

A

Cardiac, skeletal, and smooth muscles.

34
Q

What are the main parts of the skeletal system?

A

Skull, rubs, spine, pelvis.

35
Q

What are the main parts of the nervous system?

A

Peripheral and central.

36
Q

What is the main function of the excretory system?

A

Eliminate waste from the body and maintain homeostasis.

37
Q

What do the kidneys maintain?

A

Salt levels.

38
Q

What system rids the body of liquid waste?

A

Excretory.

39
Q

What are the main parts of the excretory system?

A

Kidneys, bladder, and ureters.

40
Q

What is the main organ in the excretory system?

A

Kidneys.

41
Q

Where does physical digestion begin?

A

Mouth.

42
Q

What begins chemical digestion?

A

Saliva enzymes breaking down food in your mouth.

43
Q

How many organs are there in the digestive system?

A

10.

44
Q

How many specialized cell types are there in the digestive system?

A

20.

45
Q

What do the pancreas, gallbladder, and liver do?

A

Produce digestive juices.

46
Q

What do hormones in the digestive system do?

A

Tell your body when to make juices.

47
Q

What do nerves do in the digestive system?

A

Tell your body when your rectum is full.

48
Q

What is the mesentery?

A

Tissue that holds everything into place like a net.

49
Q

What does blood do for digestion?

A

Carries nutrients to your body.

50
Q

What do arteries do?

A

Carries blood away from the heart.

51
Q

What do veins do?

A

Carries blood back to the heart.

52
Q

What are capillaries?

A

Tiny branching blood vessels

53
Q

Is blood a tissue?

A

Yes.

54
Q

What does the circulatory system do?

A

Circulates(circles) blood, oxygen, etc.

55
Q

Why do animals need oxygen?

A

Cellular respiration.

56
Q

What is cellular respiration?

A

The process by which animals use oxygen to break down food.

57
Q

Does cellular respiration happen in every cell in an animal’s body?

A

Yes.

58
Q

How do gases get out of our cells?

A

Diffusion.

59
Q

Do all animals breathe?

A

No.

60
Q

Do all animals do cellular respiration?

A

Yes.

61
Q

What is an example of a respiratory organ?

A

Skin, gills, lungs.

61
Q

Where does ATP happen?

A

In the mitochondria.