Digestion and Absorption Test

Result

Digestion and Absorption Test - 40

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

The path taken by food material after ingestion is represented by

A
Mouth ---> Oesophagus ---> Stomach ---> Pharynx

B
Mouth ---> Pharynx ---> Oesophagus ---> Small Intestine ---> Stomach

C
Mouth ---> Pharynx ---> Oesophagus ---> Stomach

D
Oesophagus ---> Mouth ---> Pharynx ---> Stomach
Question 2
1 / -0

The disease due to inflammation of vermiform appendix of the digestive system is known as

A
Amoebic dysentery

B
Appendicitis

C
Intestinal cancer

D
Appendectomy

Solution

Appendicitis is an inflammation of the appendix, a finger-shaped pouch that projects from the colon on the lower right of the abdomen.
Therefore, the correct answer is option B.
Question 3
1 / -0

The first enzyme that acts on food in the digestive system is

A
Pepsin

B
Trypsin

C
Chymotrypsin

D
Amylase

Solution

When the food is taken into the mouth, the first enzyme that acts on food is salivary amylase that break down the carbohydrates (starch) into simple sugars. It is secreted by the salivary glands in mouth.
Therefore, the correct answer is option D.
Question 4
1 / -0

During digestion of food in alimentary canal, protein is acted upon by enzymes in the following sequence

A
Ptyalin, trypsin and peptidase

B
Peptidase, trypsin and pepsin

C
Pepsin, trypsin and peptidase

D
Ptyalin, pepsin and trypsin

Solution

Pepsin is an enzyme whose zymogen (pepsinogen) is released by the chief cells in the stomach and that degrades food proteins into peptides. Trypsin continues the process of digestion begun in the stomach in the small intestine where a slightly alkaline environment (about pH 8) promotes its maximal enzymatic activity. Acid proteases (also called peptidase or proteinase) secreted into the stomach (such as pepsin) and serine proteases present in duodenum (trypsin and chymotrypsin) enable us to digest the protein in food.
Therefore, the correct answer is option C.
Question 5
1 / -0

The most important function of villi in the small intestine is

A
To provide strength to the intestine

B
To provide space for capillaries and lacteals

C
To provide increased surface area for absorption of digested food

D
To provide habitat for bacteria

Solution

Villi are tiny, finger-like projections from the wall of the small intestine. They line the inner surface of the small intestine. Their role is to increase the surface area within the small intestine. This will lead to the increase of the surface area of absorption as it is the main function of the small intestine.
Question 6
1 / -0

Ptyalin enzyme is secreted by

A
Salivary glands

B
Mouth

C
Oesophagus

D
Stomach

Solution

Ptyalin is a form of amylase found in saliva of humans. Another name of ptyalin is salivary amylase. It is the most important amylolytic enzyme secreted in mouth (buccal cavity) by the salivary glands. The main function of ptyalin is to catalyze the hydrolysis of starch into maltose and dextrin.
Question 7
1 / -0

Directions For Questions

Defending a territory requires time and energy. Any animal should only defend territories if the benefits of defense outweigh the costs.Consider a sunbird that feeds only on the nectar of flowers.When the sunbird obtained an average of 1 microlitre of nectar per flower, it needed 8 hours of foraging to meet its daily energy requirements. This time was reduced to 4 h if it gained 2 microlitres of nectar per flower and to 2.7 h if it gained 3 microlitres of nectar per flower.Metabolic costs associated with various activities of sunbird are as follows:
Foraging for nectar: 1000 cal/h
Sitting on a perch: 400 cal /h
Territory defence: 3000 cal/h
If the bird defends the territory the its net gain of nectar per flower increases from 2 microliters to 3 microliters but the bird needs to spent 0.28 h per day for defense.

...view full instructions

Mark the correct interpretation

A
In the above situation, the bird is likely to show territory defense as the net perching cost is reduced.

B
In the above situation, the bird is not likely to show territory defense as the cost associated with it is greater than the energy spent in foraging.

C
In the above situation, the bird is likely to show territory defense as the net benefit by defending a territory is higher than by not defending it.

D
In the above situation, the bird is not likely to show territory defense as the cost associated with perching and defense both overcome the energy saved in foraging.
Question 8
1 / -0

Kwashiorkor disease develops due to

A
Malnutrition

B
Overeating

C
Catalysis

D
Mutation

Solution

Kwashiorkor is a form of malnutrition that occurs when there is not enough protein in the diet.
Causes: Kwashiorkor is most common in areas where there is famine, limited food supply, low levels of education (when people do not understand how to eat a proper diet).
This disease is more common in very poor countries. It often occurs during a drought or other natural disaster, or during political unrest. These conditions are responsible for a lack of food, which leads to malnutrition.
Thus, the correct answer is option A.
Question 9
1 / -0

In an adult human, the length of the small intestine is about

A
8.5 m

B
3.5 m

C
6.5 m

D
2.5 m

Solution

The average length of the small intestine in an adult human male is 6.5 m (22 ft 8 in), and 7.1 m (23 ft 4 in) in an adult female.
Question 10
1 / -0

Which of the following is the principal organ for digestion and absorption of food in our body?

A
Large intestine

B
Liver

C
Pancreas

D
Small intestine

Solution

The small intestine is the part where 90% of the digestion and absorption of food occurs, the other 10% of absorption takes place in the stomach and in the large intestine. Digestion involves mixing of food, its movement through the digestive tract and the chemical breakdown of the large molecules of food into smaller molecules. The process of digestion begins in the mouth when we chew and swallow and is completed in the small intestine with digestion and absorption of nutrients. Thus, option D is correct.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Digestion and Absorption Test - 40

Result

Digestion and Absorption Test - 40

Score

-

Rank

-

SHARING IS CARING

Question 1

Mouth ---> Oesophagus ---> Stomach ---> Pharynx

Mouth ---> Pharynx ---> Oesophagus ---> Small Intestine ---> Stomach

Mouth ---> Pharynx ---> Oesophagus ---> Stomach

Oesophagus ---> Mouth ---> Pharynx ---> Stomach

Question 2

Amoebic dysentery

Appendicitis

Intestinal cancer

Appendectomy

Solution

Question 3

Pepsin

Trypsin

Chymotrypsin

Amylase

Solution

Question 4

Ptyalin, trypsin and peptidase

Peptidase, trypsin and pepsin

Pepsin, trypsin and peptidase

Ptyalin, pepsin and trypsin

Solution

Question 5

To provide strength to the intestine

To provide space for capillaries and lacteals

To provide increased surface area for absorption of digested food

To provide habitat for bacteria

Solution

Question 6

Salivary glands

Mouth

Oesophagus

Stomach

Solution

Question 7

In the above situation, the bird is likely to show territory defense as the net perching cost is reduced.

In the above situation, the bird is not likely to show territory defense as the cost associated with it is greater than the energy spent in foraging.

In the above situation, the bird is likely to show territory defense as the net benefit by defending a territory is higher than by not defending it.

In the above situation, the bird is not likely to show territory defense as the cost associated with perching and defense both overcome the energy saved in foraging.

Question 8

Malnutrition

Overeating

Catalysis

Mutation

Solution

Question 9

8.5 m

3.5 m

6.5 m

2.5 m

Solution

Question 10

Large intestine

Liver

Pancreas

Small intestine

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.