Digestion Sec 2 exp

Which parts of the digestive system are proteins being digested?

• Small intestine and Mouth

• Large intestine and Mouth

• Stomach

• Small intestine & Stomach

Which best describes what happens in the mouth when food is present

• Saliva breaks food in smaller parts

• The food digests by itself

• The food is made by enzymes

• Salivary enzyme can only act on food that contain carbs

Wch of the following organs secrete enzymes in the process of digestion?

• Liver , stomach , mouth

• liver, stomach & pancreas

• stomach, mouth & pancreas

• liver, stomach, mouth, pancreas

Wch of the following is not true abt the process that takes place in the small intestine?

• Simple food substances move into the intestinal walls thru simple diffusion only.

• Cellulose wch forms the cell wall cannot enter the small intestine bcoz it is too bigto pass thru the cell membrane

• water is not absorbed in the small intestine generally

• The small intestine also secretes juices containing enzymes to digest foods.

The following tests are carried out in an investigation to identify the unknown food sample :

1. 1. When Biuret solution is added, the colour remains blue

2. 2. When Benedict's solution is added, a brick-red colour appears

3. 3. When ethanol & water are added, white emulsion is observed after shaken

Based on the results, what can the student conclude abt the food sample?

• It contains fats & carbs

• It contains proteins & carbs

• It contains fats & proteins

• It contains fats, carbs & proteins

Wch of the following is NOT true abt a digestive enzyme?

• It is made up of a special type of proteins

• it speeds up chemical reactions during the process of digestion

• it can digest different types of food substances

• it remains unchange after digestion

When a person has his gall bladder removed from his body, what could be the best suggestion on his daily diet?

• The person should not consume foods that contain any fats at all bcoz fats cannot be digested anymore.

• The person can consume foods that contain fats but the content of fats has to be greatly reduced.

• The person should not consume foods that contain high proteins content bcoz proteins cannot be digested anymore.

• The person does not need to make any adjustmenton on his diet that contains high content of proteins, fats & carbs.

At wch part of the digestive system does bile carry out its function?

• Stomach

• Mouth

• Small Intestine

• Liver

What are the main elements that made up of amino acids?

• Carbon, Sulphur, oxygen, fluorine

• Carbon, nitrogen, chlorine, hydrogen

• carbon, potassium, nitrogen, hydrogen.

• Carbon, oxygen, nitrogen, hydrogen.

Wch of the following is NOT true abt fat in our body?

• It keeps our body warm bcoz it has the insulating effect

• It contains elements carbon, oxygen & nitrogen.

• It can provide twice the amount of energy in our body compared to an equal mass of carbohydrates

• It is called oil if it is in liquid state at room temperature.