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Yr 8 > science digestive system and cells > Flashcards

science digestive system and cells Flashcards

1
Q

What are tissues?

A

specialized cells grouped together to form a specific structure for a specific function

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2
Q

How many different types of tissues are there?

A

4

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3
Q

What are the different types of tissues?

A

Connective, epithelial, muscle and nervous

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4
Q

What are organs?

A

a group of tissues that work together to do a particular job, perform a specific function or group of functions

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5
Q

An example of an organ and what does it do

A

Lungs help you breath, brain helps you think etc.

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6
Q

What is a system?

A

a group of organs that work together for a specific function.

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7
Q

What happens if a system doesn’t work?

A

The body stops functioning.

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8
Q

How many types of systems are there?

A

11

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9
Q

What are the different types of systems?

A

Reproductive, urinary, nervous, skeletal, muscular, cardiovascular, respiratory, digestive, hormonal, immune and integumentary.

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10
Q

types of digestion

A

Mechanical and Chemical

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11
Q

What types of organs are in the reproductive system?

A

Sex organs

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12
Q

What does the excretory system consist of and do

A

Produces urine and eliminates waste through kidneys, bladder, urethra and ureter

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13
Q

how many bones are in the skeletal system

A

206

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14
Q

what is in the respiratory system

A

lungs heart mouth larynx/pharynx

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15
Q

What does the respiratory system do

A

takes in oxygen

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16
Q

what is another word for the hormonal system

A

endocrine system

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17
Q

What does the muscular system do

A

the system of all of your muscles

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18
Q

What does the integumentary system consist of

A

Your skin

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19
Q

what does the immune system do

A

body defense

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20
Q

the role of the cardiovascular system

A

blood circulation, with the heart, blood, veins and arteries

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21
Q

nervous system organs

A

brain, spinal cord and nerves

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22
Q

Definition of digestion

A

The process of changing large insoluble molecules into smaller soluble molecules that the body is able to use.

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23
Q

Four steps of digestinon

A

ingestion, digestion, absorption and egestion

24
Q

What is the name of eating

A

ingestion

25
Q

Absorption

A

taking in the small soluble molecules into the bloodstream

26
Q

The first part of digestion

A

Mouth

27
Q

digestion in the mouth

A

teeth, salivary glands, tongue. chewing, and breaking down food. releasing enzymes for digestion. moves food to pharynx.

28
Q

what does the esophagus do

A

joins mouth to stomach, a rubbery squeezy tube

29
Q

what does the stomach do

A

muscles contract with a protective lining. chemical and mechanical (moving)

30
Q

what is the small intestine for

A

long (absorbs nutrient to the bloodstream), villus makes large surface from outside strong. goes into blood vessels (tiny ones = capilery)

31
Q

the large intestine

A

absorbs water and eliminates it

32
Q

rectum

A

pooping

33
Q

Egestion

A

removal of unwanted foods

34
Q

The first organ for the process of digestion

A

Mouth

35
Q

What does the small intestine do

A

absorbs nutrients into the bloodstream through villi

36
Q

what does the large intestine do

A

absorption of water

37
Q

What is cell division

A

Process to replace dead/damaged cells. The production of new cells for growth and repair.

38
Q

Steps for joining cells

A

cells (same) - tissues (different) - organs (different) - organ system (different) - organism

39
Q

Types of cells

A

red and white blood cells, sperm cells, skin cells

40
Q

Types of animal cells

A

root hair cells and guard cells

41
Q

Similar cell parts in animal and plant cells

A

both have nucleus, cytoplasm and cell membrane

42
Q

something plant cells have but animal cells dont

A

e.g vacuole or chloroplasts

43
Q

What does the nucleus do

A

controls cell activity

44
Q

what does the cytoplasm to

A

watery component where reactions happen

45
Q

what does the cell membrane do

A

controls movement of substances in and out of cell

46
Q

cell wall

A

for shape and support

47
Q

vacuole

A

holds cell sap

48
Q

which cell part is for photosynthesis

A

chloroplasts

49
Q

magnification sum

A

eye piece x objective lens

50
Q

what is a cell

A

the basic unit of living

51
Q

unicellular vs multicellular

A

uni is single-celled organisms (bacteria) multi is lots of different types of cells (plants or animals)

52
Q

Types of cells

A

sperm cells - reproduction
Egg cell - reproduction
red blood cell - carries oxygen
white blood cell - fights infection
skin cell - protects body
fat cell - insulation
PLANTS
root hair cell - absorb water
guard cell - transfer of gases with surroundings

53
Q

why are cells shaped differently?

A

because cells do different things

54
Q

how does a cell change in appearance when no water

A

cell membranes would lack structure

55
Q

what happens when enzymes are in Landry detergent?

A

provides higher degree of stain removal and whitens clothes

56
Q

what happens when enzymes are in temperatures

A

high temperature cause it to lose shape + stop working. low temperature’s lead to slower chemical reactions.

57
Q

how does bacteria spread on bread.

A

due to the temperature and moisture of the room, bacteria grows. can also be spread from bacteria on your hands.

Yr 8 (1 decks)

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