Digestion and Absorption Test

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Digestion and Absorption Test - 50

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Question 1
1 / -0

In humans, what is the role small intestine?
I. Vitamine synthesis
II. Absorb water
III. Absorb Nutrients

A
I and II only

B
II and III only

C
II only

D
I only

E
III only

Solution

The small intestine is made up of the duodenum, jejunum, and ileum. In living humans, the small intestine alone measures about 6 to 7 meters long. The main function of the small intestine is the absorption of nutrients and minerals from food.
Question 2
1 / -0

Ileocaecal valve is present in between the

A
Colon and large intestine

B
Colon and small intestine

C
Stomach and small intestine

D
Cardiac stomach and fundus

Solution

Ileocaecal valve is present in between colon of the large intestine and small intestine. Its site in the gastrointestinal tract that is used for Vitamin B12 and bile acid absorption. It mainly prevents the backflow of fluid into the ilium.
So, the correct answer is option B.
Question 3
1 / -0

Secretin and cholecystokinin are the hormones secreted in

A
Pyloric stomach

B
Duodenum

C
Ileum

D
Oesophagus

Solution

Cholecystokinin and secretin are the peptide hormones. This are the hormone of the gastrointestinal system. The enzyme cholecystokinin is responsible for stimulating the digestion of fat and protein. The enzyme is synthesized and secreted by enteroendocrine cells in the duodenum.
Thus, the correct answer is option B.
Question 4
1 / -0

Sphincter that helps in opening of stomach into duodenum ____________.

A
Cardiac

B
Pyloric

C
Anal

D
Gastric
Question 5
1 / -0

In which of the following alternatives the correct order of processes is given?

A
$$Assimilation\rightarrow Absorption \rightarrow Digestion \rightarrow Ingestion\rightarrow Egestion$$

B
$$Absorption\rightarrow Digestion\rightarrow Ingestion\rightarrow Assimilation\rightarrow Egestion$$

C
$$Digestion\rightarrow Ingestion\rightarrow Assimilation\rightarrow Absorption\rightarrow Egestion$$

D
$$Ingestion\rightarrow Digestion\rightarrow Absorption\rightarrow Assimilation\rightarrow Egestion$$

Solution

Food is first taken in from the mouth that is ingested. The food is converted to simple form i.e digestion and then it is absorbed by blood i.e absorption. The nutrients in the blood are taken to the cell for metabolic action i.e assimilation and then undigested food is thrown out of the body through anus that is egestion.
Thus, the correct answer is option D.
Question 6
1 / -0

What is the name of finger like projection in the small intestine of human?

A
Vermiform appendix

B
Villi

C
Gizzard

D
Food vacuole

Solution

Villi are small finger-like projections present along the walls of the small intestine. They increase the surface area of the small intestine and help in absorption of nutrients from the digested food.
So, the correct answer is option B.
Question 7
1 / -0

Select the correct sequence of the steps of human nutrition.

A
Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

B
Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

C
Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

D
Ingestion $$\rightarrow$$ Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion
Solution
There are five steps in holozoic (organic food is taken from outside) nutrition - ingestion, digestion, absorption, assimilation, and egestion.
Ingestion is the process the food is taken inside through the mouth and broken down by teeth and digestion begins in the mouth by saliva.
Digestion is the process in which food is digested by few enzymes and is used by the cells for producing energy.
Absorption is the process in which cells use the energy from the digested food and helps in building tissues in the body.
Assimilation is the process in which digested food moves into the cells of the body.
Egestion is the process in which undigested food is removed out from the body through excretion.
So, the correct answer is option A.
Question 8
1 / -0

A child eats food rich in carbohydrates and avoids protein in its diet. Which type of nutritional deficiency will affect that child?

A
Kwashiorkar

B
Nyctalopia

C
Diabetes

D
Down syndrome
Solution
- Kwashiorkor is malnutrition produced by a severely inadequate amount of protein in the diet.
- Nyctalopia is characterised by an abnormal inability to see in dim light or at night, caused by vitamin A deficiency.
- Diabetes is a chronic disease associated with abnormally high levels of glucose in the blood.
- Down syndrome is a genetic disorder caused due to the presence of a third copy of chromosome $$21$$ that is called a trisomy.
Hence the correct answer is $$A$$.
Question 9
1 / -0

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

A
Digestive and circulatory

B
Respiratory and circulatory

C
Excretory and skeletal

D
Nervous and endocrine

Solution

The nervous system controls the movement of the limbs and other internal functions. The endocrine system produces enzymes and hormones that aid in the metabolism and growth. Hence the correct answer is nervous and endocrine system, option D.
Question 10
1 / -0

What is the length of small intestine in an adult human being?

A
3.5 m

B
6.5 m

C
4.5 m

D
2.5 m

Solution

The small intestine is the largest part of the alimentary canal in humans. In an adult human, the small intestine is approximate $$6.5$$ metres long. It helps in the digestion and assimilation of food. Longer intestine provides larger surface area for absorption and assimilation.
So, the correct answer is option B.

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Digestion and Absorption Test - 50

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Digestion and Absorption Test - 50

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Question 1

I and II only

II and III only

II only

I only

III only

Solution

Question 2

Colon and large intestine

Colon and small intestine

Stomach and small intestine

Cardiac stomach and fundus

Solution

Question 3

Pyloric stomach

Duodenum

Ileum

Oesophagus

Solution

Question 4

Cardiac

Pyloric

Anal

Gastric

Question 5

$$Assimilation\rightarrow Absorption \rightarrow Digestion \rightarrow Ingestion\rightarrow Egestion$$

$$Absorption\rightarrow Digestion\rightarrow Ingestion\rightarrow Assimilation\rightarrow Egestion$$

$$Digestion\rightarrow Ingestion\rightarrow Assimilation\rightarrow Absorption\rightarrow Egestion$$

$$Ingestion\rightarrow Digestion\rightarrow Absorption\rightarrow Assimilation\rightarrow Egestion$$

Solution

Question 6

Vermiform appendix

Villi

Gizzard

Food vacuole

Solution

Question 7

Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

Ingestion $$\rightarrow$$ Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

Solution

Question 8

Kwashiorkar

Nyctalopia

Diabetes

Down syndrome

Solution

Question 9

Digestive and circulatory

Respiratory and circulatory

Excretory and skeletal

Nervous and endocrine

Solution

Question 10

3.5 m

6.5 m

4.5 m

2.5 m

Solution

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