Nutrition in Animals quiz

The largest gland in the human body is the:

Digestion of starch begins in the:

Teeth used for tearing food are:

Digested food is absorbed mainly by the:

Water and salts from undigested food are absorbed in the:

Bile is produced by the:

Amoeba captures food using:

Cellulose is digested in ruminants with the help of:

The food pipe is also called the:

Removal of undigested food through the anus is called:

Why do we sometimes choke when we talk while eating? (2 marks)

Name two functions of the tongue. (2 marks)

What is the role of the pancreas in digestion? (2 marks)

What is the role of mucus in the stomach? (2 marks)

What happens to food in the rumen? (2 marks)

Name the parts of the alimentary canal in the correct order. (2 marks)

Why should we brush our teeth after meals? (2 marks)

How does a starfish feed on animals with hard shells? (2 marks)

What is assimilation? Give an example of its use. (2 marks)

Where is the caecum found and what is its role in horses? (2 marks)

An adult has 32 teeth: 8 incisors, 4 canines, 8 premolars and 12 molars. What percentage of teeth are molars? What fraction are canines? (3 marks)

A child has 20 milk teeth. By about 12 years they are replaced, and later wisdom teeth make 32 permanent teeth. How many more teeth does an adult have than a young child? Express this as a percentage of 20. (3 marks)

Food takes about 8 seconds to pass through the oesophagus, 3 hours in the stomach, 5 hours in the small intestine and 30 hours in the large intestine. Find the total time in hours and the percentage spent in the large intestine (to the nearest whole number). (3 marks)

ORS is made by dissolving a pinch of salt and a spoonful of sugar in a glass of clean water. If a child needs 5 glasses a day, and a glass holds 200 mL, find the total ORS in litres. Why is it given? (3 marks)

The human alimentary canal is about 9 m long, of which the small intestine is 7.5 m. What fraction is the small intestine? What length is left for the other parts? (3 marks)

Read the passage and answer the questions. A cow grazing in a field swallows grass quickly. Later, while resting, it brings back small lumps of food into its mouth and chews them slowly. (i) What are the lumps called? (ii) Where is the grass stored first? (iii) Why can cows digest grass while humans cannot? (5 marks)

Read the passage and answer the questions. Paheli felt a burning sensation in her chest after a spicy meal. The doctor said her stomach was producing too much acid. (i) Which acid is produced in the stomach? (ii) What is its normal role? (iii) What type of medicine can give relief? (5 marks)

Read the passage and answer the questions. Under a microscope, Boojho saw a tiny organism change shape, push out finger-like projections, surround a food particle and trap it. (i) Name the organism. (ii) Name the projections. (iii) Where is the food digested inside it? (5 marks)

Read the passage and answer the questions. A dentist found cavities in a boy's molars. The boy ate chocolates daily and rarely brushed at night. (i) What causes cavities? (ii) Why are molars more affected? (iii) Suggest two habits to prevent this. (5 marks)

Read the passage and answer the questions. In the small intestine, millions of tiny finger-like projections line the inner wall and are full of blood vessels. (i) Name the projections. (ii) How do they help absorption? (iii) Where does the absorbed food go? (5 marks)

Draw a labelled diagram of the human digestive system and describe the changes food undergoes in the mouth, stomach and small intestine. (6 marks)

Draw a labelled diagram of the arrangement of teeth in the upper or lower jaw. Explain the function of each type of tooth. (6 marks)

Explain the digestion of grass in ruminants with a labelled diagram of the stomach. (6 marks)

Explain nutrition in Amoeba step by step with labelled diagrams. (6 marks)

Describe five steps of nutrition in humans: ingestion, digestion, absorption, assimilation and egestion, with the organ involved in each. Draw a flowchart. (6 marks)