Assimilation of Food

Q.

How does bile help in the digestion of fats?

Q.

The breaking down of food into simpler substances is called _________ .

1. Absorption

2. Assimilation

3. Digestion

4. Ingestion

Q.

The liver secretes bile juice that takes part in the digestion of fats.

Digestion of fats results in the formation of which substance?

1. Glucose

2. Glycerol

3. Amino acids

4. Hydrochloric acid

Q.

Egestion is same as Excretion.

1. True

2. False

Q.

Which of the following converts starch to glucose, proteins to amino acids and fats to glycerol?

1. Bile salts

2. Intestinal juice

3. Pepsinogen

4. Gastric juice

Q.

__ is the conversion of the absorbed digested food into body material.

Q.

What is egestion? How is it different from excretion? [2 MARKS]

Q. What is the difference between egestion and excretion?

Q.

While removing the peel from a leaf, one should

1. Include some green tissue along with it.

2. Include a scrape of green tissue sticking to the peel.

3. Take a peel along with a large amount of green tissue.

4. Tear the leaf obliquely to get a clear transparent peel and remove a scrape of green tissue to it, if any.

Q. Name the juice produced by liver. How does it help in digestion of fats?

Q. WHAT is meant by excreation

Q. acid is present in our stomach.

1. Nitric
2. Sulphuric
3. Hydrochloric

Q.

While preparing a temporary mount of leaf epidermis, it is suggested that instead of a sharp needle, a brush should be used to transfer the peel from Petri dish to slide. This is because

1. Sharp needle does not allow mounting of peel.

2. Needles can be used to prevent the entry of bubbles on the mount.

3. Sharp needle may damage the cells.

4. Needle does not help in the proper transfer of peel from Petri dish to slide.

Q.

__ is the conversion of the absorbed digested food into body material.

Q.

Bile helps in the digestion of fats.

1. True
2. False

Q.

Digestion of food starts in the mouth.

1. True

2. False

Q. Is removal of undigested food from the body considered to be excretion? Why?

Q. Meals which are rich in fat are not digested in the intestine in absence of

1. Pepsin
2. Insulin
3. Steapsin
4. Enterokinase

Q.

Why is the removal of faeces or undigested food from the body not an example of excretion?
[3 marks]

Q.

Define the following.
Assimilation

Q. In vertebrates the food is mainly stored in the form of

1. Fat
2. Fat and glycogen
3. Glycogen
4. Proteins

Q.

What is meant by assimilation?

Q. Sequence of food materials consumed during starvation is?

1. Carbohydrate - protein - fat
2. Carbohydrate - fat - protein
3. Fat - protein - carbohydrate
4. Protein - fat - carbohydrate

Q. Which of the following organ is the chief site of deamination?

1. Spleen
2. Pancreas
3. Kidney
4. Liver

Q.

Mona followed this procedure for staining the leaf peel

(i) She plucked the leaf of lily.

(ii) Cut the leaf into pieces.

(iii) Stained the leaf peel.

(iv) Removed the leaf peel.

1. (i), (ii), (iii), (iv)

2. (i), (ii), (iv), (iii)

3. (iv), (iii), (ii), (i)

4. (ii), (i), (iv), (iii)

Q. The uptake and utilization of inorganic nutrients by the plants is termed:

1. Symbiosis

2. Mineral nutrition

3. Assimilation

4. Metabolism

Q. Differentiate absorption and assimilation.