biology Flashcards

1
Q

what are the 7 parts of a human diet

A
  1. carbohydrates
  2. protein
  3. fats and oils
    4.minerals
  4. vitamins
  5. fiber
    7.water
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2
Q

health problems for obese people

A

they could get diabetes or coronary heart disease

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3
Q

unbalanced diet

A

lack of proper nutrition caused by not having enough to eat to a point were you could go to hospital or eating to much of the wrong things such as fats and oils and carbs and not adding fruit and vegetables to your diet or even protein

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4
Q

health problems that malnourishment can cause

A

it can cause hair loss weight loss headaches and if you do not eat enough protein you can become blotted

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5
Q

the difference between medical drugs and recreational drugs

A

medical drugs treat symptoms and cure illness and recreational drugs are taken for enjoyment

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6
Q

what do stimulants do

A

they speed up nervous system for example cocaine

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7
Q

what do depressants do

A

they slow down the nervous system for example alcohol

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8
Q

what do hallucinogens do

A

alters the way you see and hear like magic mushrooms

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9
Q

what does analgesic do

A

pain killing like heroin

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10
Q

why drugs are dangerous

A

they can become a addiction
and you can overdose on them

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11
Q

effects of alcohol abuse

A

blurry vision
throwing up
liver damage
brain damage

memory loss

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12
Q

effect on alcohol if your pregnant

A

could loose your baby
the baby could get brain damage

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13
Q

why is smoking dangerous

A

lung cancer
heart attacks
breathing problems
addictive

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14
Q

how many people die from smoking each year

A

8 million

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15
Q

what chemicals are there in cigarettes

A

nicateen it makes your heart beet faster and narrows blood vessels

tar is a black sticky chemical

carcinogen clogs up your lungs

carbon monoxide toxic gas prevents red blood cells from carying oxygen

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16
Q

smoking in pregnancy does what

A

increases chance of miscarriage

your baby will be very small

if the baby survives it will still be deformed and will have a low birth weight

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17
Q

what do emzymes do

A

they brake up food

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18
Q

what does soluble and insoluble mean

A

soluble means it can dissolve and insoluble means it cant devolve

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19
Q

how does food digest

A

firstly it goes threw the mouth and the enzymes in the saliva and your teeth brakes the food down then the broken down food goes into the osophagos
and it gets pushed down by the rings of the muscles contracting then it goes in the stomach witch has loads of acids in it to brake down the food more then it goes into the small intestine and transfers it to the large intestine the the small intestine were the water is relesed and the food is also releases but this takes longer

20
Q

what is a drug

A

something that chemically alters the way the body works

21
Q

what do you need for photosynthesis

A

carbon dioxide
light
water
chlorophyll

22
Q

whats the word equation for photosynthesis

A

energy
carbondioxide+water——-> glu+oxygen chlorophyll

23
Q

what do leaves help make for a plant

A

food

24
Q

what do leaves breath in and why

A

CO2 so the world isnt full with CO2 as that could kill humans

25
Q

what do leaves breath out and why

A

oxygen so theres more oxygen in the world so humans can breath it in

26
Q

why do leaves have veins

A

so it can transport water to the leaves and the leaves transport it to the plant

27
Q

why are leaves thin

A

so they can get the maximam amount of sun light

28
Q

why are there large service areas on leaves

A

so the chlorophyll can absorb the most amount of sun light

29
Q

why are leaves green

A

as they have allot of chlorophyll

30
Q

what will happen if a plant has a carbon dioxide deficiency

A

it will die as it cant to photosynthesis and basically cant breath

31
Q

whats a deficiency

A

its when something doesn’t have enough of something

32
Q

what do plants use to make chlorophyll

A

nitrogen and magnesium

33
Q

why do plants need chlorophyll

A

so the plant stays green and doesn’t go yellow

34
Q

why is potassium needed in plant cells

A

So photosynthesis speeds up and leaves don’t go yellow

35
Q

what is aerobic respiration

A

how humans breath

36
Q

whats the word equation for aerobic respiration

A

energy
oxygen+glucose———–>
CO2+ water chlorophyll

37
Q

whats glucose

A

store of energyn

38
Q

what does anaerobic respiration mean

A

without oxygen its the way we get a boost of energy

39
Q

whats a top carnivore in a food chain

A

its the only animal that can service as it doesn’t get eaten by any other animal in the food chain

40
Q

whats a producer in the food chain

A

its the plants

41
Q

whats interdependence

A

its when organisms rely on each other for resources

42
Q

what would happen if there was no producer

A

everything would be dead

43
Q

whats inheritance

A

its the passing down of characteristics through DNA

44
Q

where is DNA found

A

in the nucleus

45
Q

what is a chromosome

A

is the way in witch our DNA is structured

46
Q

where do 2 of your chromosomes come from

A

1 from your mother and 1 from the father