Large Intestine

Q. The digestive system of frogs is made of the following parts. Arrange them in an order beginning from the mouth. Mouth, oesophagus, buccal cavity, stomach, intestine, cloaca, rectum, cloacal aperture.

Q.

What are the four layers of the alimentary canal?

Q.

What is the importance of identifying bacteria?

Q. Where do certain symbiotic microorganisms normally occur in the alimentary canal of the human body?

1. Caecum
2. Duodenum
3. Tongue
4. Ileum

Q.

What are the benefits of lactic acid bacteria?

Q. Large intestine is divided into the following except

1. Colon
2. Rectum
3. Ileum
4. Caecum

Q.

The tube starting at mouth and ending at the anus is called

1. oesophagus

2. food cavity

3. alimentary canal

4. elementary canal

Q.

What is lactobacillus?

Q.

Match the following sphincters of with their respective location.

$\begin{array}{cc}ColumnI\left(Sphincters\right)& ColumnII\left(Location\right)\\ i.\text{Ileo-cecal Sphincter}& a.\text{anus}.\\ ii.\text{Anal Sphincter}& b.\text{between ileum and Caecum.}\\ iii.\text{Pyloric Sphincter}& c.\text{between stomach and small intestine.}\\ iv.\text{Lower Esophageal Sphincter}& d.\text{between Esophagus and Stomach.}\end{array}$

1. i). c., ii). d., iii). d., iv).a.

2. i). b., ii). a., iii). c., iv).d

3. i). d., ii). b., iii). a., iv). c.

4. i). a., ii).c., iii). b., iv). b.

Q. Chylomicrons are protein-coated small fat globules formed in -

Q. Which among the following cannot be majorly associated with the functions of the large intestine?

1. Absorption of water and certain minerals
2. Absorption of vitamins
3. Digestion of food
4. Elimination of solid waste

Q. Large intestine is divided into the following except

1. Rectum
2. Ileum
3. Caecum
4. Colon

Q. The layer below serosa of alimentary canal is

1. Visceral peritoneum
2. submucosa
3. muscularis
4. mucosa

Q. Arrange the segments of the colon in the sequence through which digested material passes prior to defecation: (1) sigmoid (2) transverse (3) descending (4) ascending

1. 4, 2, 3, 1
2. 2, 1, 4, 3
3. 1, 3, 4, 2
4. 3, 1, 2, 4

Q. List the organs of human alimentary canal and name the major digestive glands with their location.

Q. Very short answer type.
Enumerate the main functions of the large intestine

Q. Give the scientific names of any two microorganisms inhabiting the human intestine.

Q. Succus entericus is secreted by

1. Peyer's patches
2. Crypts of Leiberkuhn
3. Auerbach's plexus
4. Brunner's glands

Q. Explain the process of digestion in the buccal cavity with a note on the arrangement of teeth.

Q. The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as

1. Chemosynthetic autotrophs
2. Heterotrophic bacteria
3. Archaebacteria
4. Cyanobacteria

Q. ____________ valve prevents the backflow of faeces into the small intestine.

1. Sphincter of oddi
2. Ileo-caecal valve
3. Cardiac sphincter
4. Pyloric sphincter

Q.

One of the examples of the action of the autonomic nervous system is

1. Peristalsis of the intestine

2. Papillary reflex

3. Knee-jerk response

4. Swallowing of food

Q.

Give one word for the following:
Muscular, hollow, thick-walled, and flattened bag in the abdomen

Q.

Crypts of lieberkuhn are formed from the

1. the mucosa of the small intestine

2. the submucosa of the small intestine

3. the submucosa of the stomach

4. the mucosa of the stomach

Q.

Brunner’s glands are present in the

1. liver

2. duodenum

3. oesophagus

4. stomach

Q. The diagram of large intestine of man is given below. Identify the parts labelled A, B, C, D, E and F.

1. (a) A = Caecum, B = Vermiform appendix, C = Sigmoid, D = Ascending colon, E = Transverse colon, F = Descending colon.
2. A = Sigmoid, B = Vermiform appendix, C = Ascending colon, D = Transverse colon, E = Descending colon, F = Caecum.
3. (c) A = Sigmoid, B = Vermiform appendix, C = Descending colon, D = Transverse colon, E = Ascending colon, F = Caecum.
4. (d) A = Caecum, B = Vermiform appendix, C = Ascending colon, D = Transverse colon, E = Descending colon, F = Sigmoid.

Q. Regarding Assertion (A) and Reason (R), select the right option.
(A) The caecum is large and spacious in herbivore.
(R) In most herbivores cellulose digestion occurs in caecum.

1. If (A) is true, but (R) is false
2. If (A) and (R) are false
3. If both (A) and (R) are true and (R) is the correct explanation of (A)
4. If both (A) and (R) are true but (R) is not the correct explanation of (A)

Q. Read the following statements and select the correct option.

1. Both statements 1 and 2 are correct.
2. Statement 1 is correct but statement 2 is incorrect.
3. Statement 1 is incorrect but statement 2 is correct.
4. Both statements 1 and 2 are incorrect.

Q.

Where is the stomach in a human?

Q. Which among the following components of food is undigested when it reaches the stomach?

1. Starch and fat
2. Starch and cellulose
3. Fat and cellulose
4. Starch and protein