Digestion and Absorption Test

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.

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Digestion and A...

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

Question 3

Pepsin

Trypsin

Chymotrypsin

Amylase

Question 4

Ptyalin, trypsin and peptidase

Peptidase, trypsin and pepsin

Pepsin, trypsin and peptidase

Ptyalin, pepsin and trypsin

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

Question 6

Salivary glands

Mouth

Oesophagus

Stomach

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

Question 9

8.5 m

3.5 m

6.5 m

2.5 m

Question 10

Large intestine

Liver

Pancreas

Small intestine

User

Question Analysis

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