Question 1

What are the small sub units that make up a protein?

Accepted Answer

Amino Acids

Answer

Glucose

Answer

Triglycerides

Answer

DNA

Question 2

Which of these is not a function of proteins in the body?

Accepted Answer

Storing genetic information

Answer

Making enzymes

Answer

Making hormones

Answer

Forming muscle tissue

Question 3

What is the function of enzymes in the body?

Accepted Answer

Speed up chemical reactions

Answer

Transport oxygen

Answer

Transmit messages

Answer

Allow diffusion

Question 4

What do we call the molecule that attaches to the enzyme?

Accepted Answer

Substrate

Answer

Co-enzyme

Answer

Product

Answer

Reactant

Question 5

Where about on the enzyme does the substrate attach?

Accepted Answer

Active site

Answer

Binding site

Answer

Actual site

Answer

Reaction site

Question 6

Which of these statements is not true?

Accepted Answer

Enzymes are used up in the reaction

Answer

Enzymes can build up large molecules

Answer

Enzymes can break large molecules down

Answer

Enzymes can change one molecule into another

Question 7

What makes each enzyme specific to one substrate?

Accepted Answer

The shape of the active site

Answer

The shape of the enzyme

Answer

The size of the enzymes

Answer

The number of amino acids in the enzyme

Question 8

Why does high temperature slow down an enzyme controlled reaction?

Accepted Answer

Enzyme is denatured

Answer

Cells are killed

Answer

Enzyme is killed

Answer

Fewer collisions between enzyme and substrate

Question 9

Which of the following will NOT denature an enzyme?

Accepted Answer

Low temperature

Answer

High pH

Answer

High temperature

Answer

Low pH

Question 10

Which organs secrete carbohydrase?

Accepted Answer

Salivary glands and pancreas

Answer

Pancreas and stomach

Answer

Salivary gland and stomach

Answer

Stomach and small intestine

Question 11

Where are lipids digested?

Accepted Answer

Small intestine

Answer

Mouth

Answer

Large intestine

Answer

Stomach

Question 12

What is the optimum pH of pepsin?

Accepted Answer

1

Answer

9

Answer

7

Answer

5

Question 13

Why are conditions acidic in your stomach?

Accepted Answer

To kill pathogens

Answer

To breakdown food

Answer

So pepsin can work

Answer

To denature enzymes

Question 14

Where is bile produced?

Accepted Answer

Liver

Answer

Small Intestine

Answer

Pancreas

Answer

Stomach

Question 15

Which of these is NOT a function of bile?

Accepted Answer

Catalyse the digestion of fats

Answer

Increase the surface area of fat droplets

Answer

Neutralise acidic pH

Answer

Emulsify fats

Question 16

Which of these molecules is produced when lipids are digested?

Accepted Answer

Fatty acids

Answer

Nucleic acids

Answer

Glucose

Answer

Amino acids

Question 17

Which type of enzyme is used to make baby foods?

Accepted Answer

Protease

Answer

Lipase

Answer

Carbohydrase

Answer

Amylase

Question 18

What is the function of isomerase?

Accepted Answer

Convert glucose to fructose

Answer

Convert fructose to glucose

Answer

Convert starch to fructose

Answer

Convert starch to glucose

Question 19

Which of these enzymes would NOT be found in biological washing powders?

Accepted Answer

Isomerase

Answer

Protease

Answer

Lipase

Question 20

Which of these is NOT an advantage of using biological washing powders?

Accepted Answer

They are cheaper to produce

Answer

Washing uses less energy

Answer

Washing can be done at lower temperatures

Answer

They break down stains more effectively than non-biological washing powders at low temperatures

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