0654 Topic B4 Nutrition

Fats and [blank_start]carbohydrates[blank_end] both provide the body with energy, but fats can provide [blank_start]twice[blank_end] as much as carbohydrates. Excess fats can be stored in the body but carbohydrates must be changed into [blank_start]glcogen[blank_end] or fat before they can be stored. The main types of carbohydrates are starch , sugar and [blank_start]cellulose[blank_end] Examples of foods rich in starch are butter, cheese and fatty meat. foods rich in fat are [blank_start]……..[blank_end] and [blank_start]……..[blank_end]

In a balanced diet, which constituents provide most energy?

The table shows some information about enzymes found in the human alimentary canal. Select the correct answer that completes each space (A-H) in the table. A: [blank_start]............[blank_end] B :[blank_start].............[blank_end] C: [blank_start]............[blank_end] D: [blank_start]...........[blank_end] E: [blank_start]............[blank_end] F: [blank_start].............[blank_end] G: [blank_start]...........[blank_end] H: [blank_start]............[blank_end]

The table shows the amount of protein and fat in 100 g samples of some foods. Which foods are the best value for body-building?

The diagram shows the human alimentary canal. Proteases are produced by structure Q . What is structure Q and what nutrient does protease digest?

The diagram shows the alimentary canal of a dog. Where does egestion occur?

A food contains reducing sugar, but no starch. What colours will be obtained if samples of the food are tested with Benedict's reagent and with iodine solution?

The diagram shows how a large food molecule is changed into smaller molecules. What is process X?

An elderly person has broken several bones. The doctor advises him to drink more milk. What is the reason for this advice?

Muscle wastage, lack of growth and the accumulation of fluid in tissues are conditions which result from the lack of nutrient X in the diet. What is nutrient X?

The diagram shows parts of the digestive system. Which labelled parts are the small intestine and the pancreas?

The diagram shows a section through a green leaf. Where are carbohydrates made?

The diagram shows a plant cell. Which structure carries out photosynthesis?

The diagram shows the stages in testing a green leaf for starch. Which liquid is alcohol (methylated spirits) ?

A plant has leaves which are green and white. One of the leaves is partly covered on both sides by a piece of black card. The plant is left under a lamp for two days. The leaf is then removed from the plant and tested for starch (the carbohydrate made during photosynthesis). Which row in the table is correct?

The diagram shows a tooth with a cavity caused by decay. Which part of the tooth has been exposed (made unprotected) by the decay?

The diagram shows part of the digestive system. Which labels identify the liver, pancreas and stomach?

A test-tube containing a starch-amylase mixture is incubated at 35 ° C. The graph shows how the amount of starch in the test-tube changes over the next five minutes. Which of the four graphs (A,B,C or D) shows what happens if a similar starch-amylase mixture is incubated at 100 ° C?

During photosynthesis, where does most of the carbon dioxide and water enter a leaf?

The diagram shows the human alimentary canal. Label the organs marked.

The diagram shows the teeth of the lower jaw of a human. Which tooth is an incisor?