Introduction to Digestion

Q.

Distinguish between intracellular and extracellular digestion?

Q.

Comment on the statement living state is a non-equilibrium steady state to be able to perform work.

Q.

Define digestion in one sentence.

Q.

What is the life process?

Q.

Life processes, the living organisms perform are:

1. Nutrition and excretion

2. Respiration and reproduction

3. Growth and response to stimuli

4. All of these

Q. Define the digestion.

Q. Select the correct match of the digested products in humans given in colum I with their absorption site and mechanism in column II.

1. Column I : Glycine, glucose, Column II : small intestine, active
2. Column I : Fructose, $N{a}^{+}$, Column II : small intestine, passive absorption
3. Column I : Glycerol, fatty acids, Column II : duodenum, move as chilomicrons
4. Column I : Cholesterol, maltose, Column II : large intestine, active absorption

Q. The final products of digestion should be

1. Fat soluble and should be able to pass through cell membranes.
2. Water soluble and should be able to pass through cell membranes.
3. Fat soluble and should be able to pass through cell walls.
4. Water soluble and should be able to pass through cell walls.

Q. What are life processes?

Q. Define the following terms: Digestion

Q. Define the term digestion. List the food contents that need digestion.

Q.

Define digestion.

Q. (a) What criteria can be used to decide whether something is alive?
(b) What is meant by life processes? Name the basic life processes common to all living organisms which are essential for maintaining life.

Q. Alimentary canal do not include the extrinsic digestive glands.

1. True
2. False

Q.

Define the following term:
Life processes.

Q. Alimentary canal is a muscular tube which starts from the mouth and ends at the anus.

1. False
2. True

Q. The function(s) of the digestive system is (are)

1. To digest food to small nutrients molecules that can pass through membranes
2. To absorb nutrient molecules
3. To eliminate indigestible remains
4. All of the above

Q. Largest part of stomach in cow's alimentary canal is

1. Rumen
2. Abomassum
3. Reticulum
4. Omassum

Q. The two systems of the human body which help in the control and co-ordination of metabolic activities are __________.

1. Digestive and circulatory
2. Respiratory and circulatory
3. Excretory and skeletal
4. Nervous and endocrine

Q.

The major and primary functions of the digestive system are to transfer _____ from the environment into our bodies.

1. Nutrients

2. Electrolytes

3. Water

4. All of the above

Q.

Fill in the blanks.
​membrane acts as a protective layer of the gastrointestinal tract.​

Q. Which one of the following is wrong about the digestive system of a grasshopper?

1. Wall of crop is muscular and its lumen is lined with cutile.
2. A pair of small, branched salivary glands associated to anterior end of midgut.
3. Heptatic caecae are six pairs of glands associated to anterior end of midgut.
4. Malpighian tibules are the thread-like tibules with blunt tips associated to the function of midgut and hindgut.

Q. Essentially the word digestion means

1. Oxidation of food
2. Hydrolysis of food
3. Burning of food
4. Breakdown of food

Q. The length of the alimentary canal is more in herbivorous animals than the carnivorous because

1. Herbivorous diet contains more fat to digest.
2. Herbivorous diet contains more vitamins to digest.
3. Herbivorous diet contains more protein to digest.
4. Herbivorous diet contains more carbohydrates particularly cellulose, which takes more time to digest.

Q. The function(s) of the digestive system is (are)

1. to eliminate indigestible remains
2. all of the above
3. to digest food to small nutrients molecules that can pass through membranes
4. to absorb nutrient molecules

Q.

Correct the spelling: Disetgion

Q. Digestive process in human being is:

1. Intracellular
2. Extracellular
3. Both of these
4. None of these

Q. Which of the following statement is incorrect related to digestion?

1. None of these.
2. Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules.
3. Digestion is both voluntary and involuntary process.
4. It is a anabolic process.

Q. Digestion is a .......... process

1. Both A and B
2. Mechanical
3. Chemical
4. None of the above