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Science8 > Unit B > Flashcards

Unit B Flashcards

1
Q

reproduction is not needed for the survival of an organism. Therefore it is necessary for the survival of___________?

A

Each type of organism

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2
Q

What is the basic unit of life?

A

Cell

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3
Q

What is metabolism?

A

sum of all the different processes that happen in an organism

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4
Q

What is a stimulus?

A

Anything that causes a response

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5
Q

which body system defends the body against diseases?

A

Circulatory

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6
Q

which body system removes gaseous and chemical wastes?

A

Excretory

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7
Q

What does the eyepiece do?

A

Magnifies

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8
Q

Which part provides sharper focus?

A

Fine adjustment knob

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9
Q

Which part moves stage up or down

A

Coarse adjustment knob

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10
Q

What does the nosepiece do?

A

Hold 3 objective lenses

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11
Q

what is the frame of a cell?

A

Cell wall

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12
Q

What is the cytoplasm?

A

“Kitchen” transports nutrients

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13
Q

What are the storage rooms in a cell?

A

Vacuoles

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14
Q

What is the command centre?

A

Nucleus

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15
Q

What are mitochondria?

A

Powerhouse- converts energy into useful energy

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16
Q

what is the cell membrane?

A

Controllable gateway

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17
Q

which part is responsible for photosynthesis/ solar panels?

A

Chloroplasts

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18
Q

smallest organism?

A

Mycoplasma

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19
Q

What is an acetabularia?

A

Largest unicellular organism (5-7 cm)

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20
Q

which organisms have pseudopods?

A

Amoeba

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21
Q

what do paramecia use to move?

A

Cilia

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22
Q

what is diffusion?

A

Particles move from a higher concentration to a lower concentration to create balance

23
Q

What are specialized cells?

A

Found in multicellular organisms; various cells that carry specific functions

24
Q

which blood cells carry oxygen?

A

Red blood cells

25
Q

Which blood cells do not reproduce?

A

Red blood cells

26
Q

4 types of tissues?

A

Epithelial, muscle, nervous and connective

27
Q

How many tissues do plants have?

A

3

28
Q

Plant tissues?

A

Photosynthetic/storage, transport and protective

29
Q

Plant organs?

A

Leaves, roots and stems

30
Q

Which side of the heart receives blood low in oxygen and pumps it to the lungs?

A

Right side

31
Q

Which part if the heart receives oxygen rich blood from the lungs?

A

Left atrium

32
Q

Which part of the heart pumps blood to the body?

A

left ventricle

33
Q

true or false: arteries carry blood away from the heart

A

True

34
Q

true or false: the aorta is a vein that pumps blood to the body

A

False

35
Q

How much of blood is plasma?

A

55

36
Q

how much of blood are red blood cells?

A

44%

37
Q

function of white blood cells?

A

fight off infections

38
Q

what is ammonia turned into?

A

Urea

39
Q

how long are kidneys?

A

10 cm

40
Q

Ureters connect the kidneys to the ______

A

Bladder

41
Q

Where do the neurons receive information from?

A

dendrites

42
Q

Brain and spinal cord are parts of the ________

A

Central nervous system

43
Q

Peripheral nervous system consists of what?

A

Cranial and spinal nerves

44
Q

Carry information from the body to central nervous system?

A

Sensory neurons

45
Q

Voluntary responses?

A

Somatic nervous system

46
Q

Who Developed the first vaccine?

A

Edward Jenner

47
Q

Who was louis Pasteur?

A

Identified Living micro organisms

48
Q

sickness due to airways becoming narrow temporarily?

A

Asthma

49
Q

Sticky black substance that clumps cilia?

A

Tar

50
Q

Red blood cells absorb ______ instead of oxygen?

A

Carbon Monoxide

51
Q

addicting drug in cigarette?

A

Nicotine

52
Q

What is emphysema?

A

Cigarettes damage lung tissue

53
Q

What is atherosclerosis?

A

When cholesterol builds up in the walls of arteries

54
Q

How many characteristics of living things are there?

A

6

Science8 (5 decks)

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