Theory Worksheet 11.1

Annie often skips her meals. When she does so, she becomes weak and tired very easily, with very little energy. Why is this so? Annie’s body does not have enough...

• Proteins

• Lipids

• Carbohydrates

• Water

People in the Arctic region live in conditions where temperatures are as low as −40°C, and lose a lot of heat to the environment. To adapt to these conditions, these people should maintain a diet rich in...

• Carbohydrates

• Lipids

• Proteins

• Vitamins

• Mineral Salts

Choose all the options that make up what you need to do when you have a question that starts with "Explain...".

• Describe what is happening in the question's scenario

• Provide a definition of the question's scenario

• Explain why the scenario in the question is happening

• Provide possible interpretations of the question

Rani was badly injured in a car accident. Her flesh wounds were taking a long time to heal fully. What would best help the flesh wounds heal, based on your knowledge of nutrients?

• Proteins

• Starches

• Lipids

• Dietary Fibre

Which of the following correctly describes the purpose of digestion?

• To break down complex food molecules into simple soluble molecules

• To make complex food molecules from simple soluble molecules

• To make use of simple soluble food molecules

• To remove complex food molecules from the body

Which of the following is not true about proteins?

• Some proteins function as enzymes in the body.

• Proteins are used for cell growth and repair.

• Protein digestion begins in the mouth.

• Proteins are broken down to form amino acids.

Emily was doing some gardening when she was called for teatime. Without washing her hands, she had some homemade cake. Not too long after, Emily had a stomach ache and was brought to the clinic. The doctor diagnosed Emily with food poisoning. Her family members did not suffer from food poisoning although they ate the same cake.

Which of the following is not a likely cause of Emily’s food poisoning?

• The slice of cake that she ate was spoilt.

• The slice of cake that she ate was contaminated with harmful micro-organisms.

• The slice of cake that she ate was contaminated with harmful toxic substances.

• The ingredients in the cake were not fully cooked.

May hurriedly ate some salad. She had difficulty swallowing it. On another occasion, May ate a small piece of chicken nugget without chewing, and experienced the same difficulty. Explain why she had difficulty swallowing the food.

• A person would have difficulty swallowing food if it is chewed.

• Food would be too large to go down the oesophagus if the food is not chewed.

• Food rich in fibre is hard to swallow.

• Food is easily digested if it is chewed.

One of the roles of a stomach is to digest...

• Carbohydrates

• Vitamins

• Proteins

• Water

Digestion of food is completed in the...

• Large Intestine

• Small Intestine

• Pancreas

• Stomach

• Gall Bladder