Biology Test Flashcards

Health and lifestyle

1
Q

What do you need Carbohydrates for?

A

It is a source of energy.

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2
Q

What do you need lipids for?

A

as insulation and to make cell membranes.

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3
Q

What do you need proteins for?

A

to build and repair muscles and bones and to make hormones and enzymes.

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4
Q

What do you need vitamins for?

A

Some vitamins help you prevent infections and keep your nerves healthy, while others may help your body get energy from food or help your blood clot properly.

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5
Q

What do you need minerals for?

A
  • building strong bones and teeth.
  • controlling body fluids inside and outside cells.
  • turning the food you eat into energy.
  • helping your body work properly
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6
Q

What do you need water for?

A

bringing nutrients to cells, getting rid of wastes, protecting joints and organs, and maintaining body temperature.

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7
Q

What do you need fibre for?

A

to lower risk of heart disease, stroke, type 2 diabetes and bowel cancer.

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8
Q

What happens if we don’t have enough carbohydrates?

A

Your body will break down the fat.

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9
Q

What happens if we don’t have enough lipids?

A

you may notice symptoms such as dry rashes, hair loss, a weaker immune system, and issues related to vitamin deficiencies.

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10
Q

What happens if we don’t have enough protein?

A

make you lose muscle mass, which in turn cuts your strength, makes it harder to keep your balance, and slows your metabolism. It can also lead to anemia.

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11
Q

What happens if we don’t have enough vitamins?

A

you develop the risk of developing chronic disease including some cancers, heart disease, diabetes, osteoporosis and depression.

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12
Q

What happens if we don’t have enough minerals?

A

you develop the risk of developing chronic disease including some cancers, heart disease, diabetes, osteoporosis and depression.

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13
Q

What happens if we don’t have enough water?

A

Fatigue
Dark urine
Headaches
Dizziness
Thirst

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14
Q

What happens if you don’t get enough fibre?

A

constipation, irritable bowel syndrome (IBS), diverticulitis, heart disease and some cancers (including bowel).

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15
Q

Do you know the different nutrient groups and why they are needed?

A

protein, carbs, fats, vitamins, minerals, and water. They are needed to create a balanced diet.

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16
Q

Can you give examples of where in the diet these nutrients can be found?

A

Fruit and vegetables are a good source of vitamins and minerals and fibre, and should make up just over a third of the food you eat each day.

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17
Q

What is the test for starch?

A

Iodine test for starch, turns blue-black in the presence of starch.

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18
Q

What is the method for the test for sugars? What is a positive result/ negative result?

A

Benedict’s solution. green/yellow if the amount is low and red if it is high.

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19
Q

What two methods can you use to test for lipids?

A

The Sudan III test and the emulsion test.

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20
Q

What is the test for protein?

A

The biuret test. Purple colour shows the presence of protein.

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21
Q

What is a balanced diet?

A

eating a wide variety of foods in the right proportions, and consuming the right amount of food and drink to achieve and maintain a healthy body weight.

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22
Q

What happens if you have too little energy?

A

You can feel dizzy, unmotivated, have trouble concentrating and more.

23
Q

Name the deficiency disease for vitamin A.

A

Night blindness.

24
Q

Why do different people have different energy requirements?

A

energy requirements are presented separately for each gender and various age groups.

25
Q

Can you identify the parts of the digestive system?

A

the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

26
Q

What does the pancreas and liver do?

A

They help send digestve juices to your intestine.

27
Q

What does your gallbladder do?

A

It stores and releases bile to help your digestive system break down fats.

28
Q

Name the deficiency disease for Vitamin B.

A

beriberi (a disease that causes heart failure) or pellagra (causes diarrhoea and dermatitis/ irritation of the skin)

29
Q

Name the deficiency disease for vitamin C.

A

Scurvy, which can cause joint, muscle or leg pain and swollen, bleeding gums

30
Q

Name the deficiency disease for vitamin D.

A

Osteomalacia, which causes weak bones, bone pain, and muscle weakness.

31
Q

Name the deficiency disease for calcium.

A

hypocalcemia, which causes muscle spasms and seizures.

32
Q

Name the deficiency disease for iron.

A

anaemia, which causes tiredness, weakness, and shortness of breath.

33
Q

What happens if you have too much energy?

A

You will get anxiety and panic attack symptoms.

34
Q

What is peristalsis?

A

Peristalsis is the wave-like motion of muscles that moves food through the digestive tract.

35
Q

What are the villi?

A

Villi are tiny, finger-like projections in the small intestine that absorb nutrients from digested food.

36
Q

Why is villi important?

A

Villi are important because they increase the surface area for nutrient absorption, helping the body efficiently take in vitamins, minerals, and other essential nutrients from food.

37
Q

Why are bacteria required in the digestive system?

A

Bacteria help break down food in the digestive system, making it easier for the body to absorb nutrients.

38
Q

What are the enzymes involved and what do they each break down?

A

Amylase – Breaks down starches (carbohydrates) into sugars.
Protease – Breaks down proteins into amino acids.
Lipase – Breaks down fats into fatty acids and glycerol.
Lactase – Breaks down lactose (milk sugar) into glucose and galactose.

39
Q

What is bile?

A

Bile is a yellowish-green digestive fluid produced by your liver.

40
Q

Why is bile important?

A

It helps your body break down fats in the foods you eat.

41
Q

What are medicinal drugs?

A

A legal substance or combination of legal substances that is intended to treat, prevent or diagnose a disease.

42
Q

What are recreational drugs?

A

a drug taken for enjoyment, typically illegally, rather than for strictly medicinal purposes.

43
Q

Why are some recreational drugs illegal?

A

Because they can lead to addiction, to health and social problems and to crime.

44
Q

What is addiction?

A

Addiction is not having control over doing, taking or using something to the point where it could be harmful to you.

45
Q

What are the withdrawal symptoms of addiction?

A

Addiction withdrawal symptoms can include cravings, sleep problems, headaches, nausea and feeling restless or agitated.

46
Q

What is the drug in alcohol?

A

ethanol.

47
Q

What are the dangers of drinking too much alcohol?

A

Alcohol overdose can lead to permanent brain damage or death.

48
Q

What are the risks of consuming alcohol whilst pregnant?

A

Drinking alcohol during pregnancy increases the risk of miscarriage, premature birth and your baby having a low birth weight.

49
Q

What are the 3 main components cigarettes?

A

nicotine, tar, and tobacco

50
Q

What effects does the 3 main components to cigarettes have?

A

When burned, cigarettes create more than 7,000 chemicals. At least 69 of these chemicals are known to cause cancer, and many are toxic.

51
Q

What is passive smoking?

A

Passive smoking is when you breathe in the smoke from other people’s cigarettes, cigars or pipes.

52
Q

What damage may be done to the body by smoking?

A

A person who smokes throughout their life is at high risk of developing a range of potentially lethal diseases, including: cancer of the lung, mouth, nose, larynx, tongue, nasal sinus, oesophagus, throat, pancreas, kidney, cervix, ovary, ureter, liver, bladder, bowel and stomach.

53
Q

What are the risks of smoking whilst pregnant?

A

you are at increased risk of miscarriage and premature labour.