Digestion and Absorption Test

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Digestion and Absorption Test - 5

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Question 1
1 / -0

In the Enteric nervous system :
i. neurons of Myentric plexus regulates glandular secretions in GI tract.
ii. neurons of Meissner’s plexus regulates peristaltic waves.

A
Statement ii) is correct and i) is wrong

B
Statement ii) is wrong and i) is correct

C
both are correct

D
both are wrong

Solution

The enteric nervous system or ENS or intrinsic nervous system is one of the main nervous system of neuron that governs the functioning of gastrointestinal system.
Question 2
1 / -0

Every cell contains DNA and when we consume plant /animal material , the DNA which reaches our digestive tract is digested by :

A
enzymes present in bile juice and gastric juice

B
enzymes present in bile juice and succusentericus

C
enzymes present in pancreatic juice and gastric juice

D
enzymes present in pancreatic juice and succus entericus

Solution

Food material consists of plant or animal cells. Each cell contain DNA in their nucleus. Digestion of DNA takes place in small intestine by the action of enzyme succus entricus.
Question 3
1 / -0

The process by which small electrolytes are absorbed

A
Simple diffusion

B
Facilitated transport

C
Passive transport

D
Active transport

Solution

Small amounts of monosacharides like glucose, amino acids and some of electrolytes like chloride ions are generally absorbed by simple diffusion.
Question 4
1 / -0

That part of alimentary canal which is responsible for absorption of water, simple sugars and alcohol :

A
Small intestine

B
Stomach

C
Mouth

D
Large intestine
Solution
Absorption in Different Parts of Digestive System:
- Mouth: Some drugs
- Stomach: Water, simple sugars, alcohol, etc.
- Small intestine: Final products of digestion; like glucose, fructose, fatty acids, glycerol, amino acids, etc
- Large intestine: Water, minerals and some
Question 5
1 / -0

Select which one is correctly matched pair :

A
Amino acids – transported by simple diffusion that doesn’t need energy

B
Galactose – absorbed by active transport that doesn’t need energy

C
Fructose – transported by facilitated diffusion that doesn’t need energy

D
Glucose – absorbed by passive transport that doesn’t need energy

Solution

Some of the substances like fructose and some amino acids are absorbed with the help of the carrier ions like sodium ions. This mechanism is called the facilitated transport.
Question 6
1 / -0

Absorption of food takes place in stomach as well as intestine but villi are present in intestine only because :

A
food is converted into absorbable form within intestine

B
intestine receives better blood supply than other parts of alimentary canal

C
stomach is already provided with microvilli

D
None of these

Solution

Villi increases the surface area thereby increasing the absorption of food.The villi also contain lymph vessels for absorbing the products of fat-digestion. From the blood stream, the absorbed food is finally delivered to each and every cell of the body. The mucosal walls of the stomach form irregular folds known as rugae.These help in increasing the surface area to volume ratio of the expanding stomach.
Question 7
1 / -0

Absorption of fats takes place through :

A
intestinal villi

B
blood capillaries

C
lymphatic ducts

D
intestinal mucosa

Solution

Lymph are the extracellular fluid that constitute the lymphatic system in human body. Absorption of fats takes place through lymphatic ducts. As fats cannot be carried through narrow capillaries.
Question 8
1 / -0

All are digestive glands except :

A
Thyroid gland

B
Salivary gland

C
Pancreas

D
Liver

Solution

Liver, pancrease and salivary gland are digestive gland that release enzymes for digestion of food but thyroid gland release thyroxin hormone that help in metabolism of carbohydrates, proteins and fats.
Question 9
1 / -0

Trans fats :
i. they are found in most processed and fast foods for eg. French fries.
ii. they help food stay fresh for long time.
iii. they are much better type of fat than the saturated fats.

A
only i) is the correct statement.

B
only i) and iii) are correct.

C
only i) and ii) are correct.

D
all are correct.

Solution

Trans fats are hydrogenated fats which makes the oil more solid. They are found in most processed and fast foods. They help food stay fresh for long time.
Question 10
1 / -0

Read the following statements :
i. In ruminants cellulose digesting bacteria are present in digestive system.
ii. Such digestion by microbial activity is called Anaerobic digestion.
iii. Camels are ruminants lacking omasum chamber.

A
only statement i) is correct.

B
statement i) and ii) are correct.

C
statement i) and iii) are correct.

D
all statements are correct.
Solution
- In ruminants like cows, buffalos, cellulose digesting bacteria are present in digestive system that release cellulose enzyme.
- Anaerobic digestion is a collection of processes by which microorganisms break down biodegradable material in the absence of oxygen.
- Camel is a psuedo ruminants as it has only 3 chambers instead of 4.

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Digestion and Absorption Test - 5

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Question 1

Statement ii) is correct and i) is wrong

Statement ii) is wrong and i) is correct

both are correct

both are wrong

Solution

Question 2

enzymes present in bile juice and gastric juice

enzymes present in bile juice and succusentericus

enzymes present in pancreatic juice and gastric juice

enzymes present in pancreatic juice and succus entericus

Solution

Question 3

Simple diffusion

Facilitated transport

Passive transport

Active transport

Solution

Question 4

Small intestine

Stomach

Mouth

Large intestine

Solution

Question 5

Amino acids – transported by simple diffusion that doesn’t need energy

Galactose – absorbed by active transport that doesn’t need energy

Fructose – transported by facilitated diffusion that doesn’t need energy

Glucose – absorbed by passive transport that doesn’t need energy

Solution

Question 6

food is converted into absorbable form within intestine

intestine receives better blood supply than other parts of alimentary canal

stomach is already provided with microvilli

None of these

Solution

Question 7

intestinal villi

blood capillaries

lymphatic ducts

intestinal mucosa

Solution

Question 8

Thyroid gland

Salivary gland

Pancreas

Liver

Solution

Question 9

only i) is the correct statement.

only i) and iii) are correct.

only i) and ii) are correct.

all are correct.

Solution

Question 10

only statement i) is correct.

statement i) and ii) are correct.

statement i) and iii) are correct.

all statements are correct.

Solution

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