Stomach

Q.

What is churning movement? Explain briefly.

Q.

Question 6
The inner lining of the stomach is protected by one of the following from hydrochloric acid. Choose the correct one.

(a) Pepsin
(b) Mucus
(c) Salivary amylase
(d) Bile

Q.

Compare and contrast nervous and hormonal mechanisms for control and coordination in animals. [5 MARKS]

Q.

Question 11
Compare and contrast nervous and hormonal mechanisms for control and coordination in animals.

Q. Explain Stomach with diagram.

Q. what is the role of stomach in digestion *

Q. Identify the statement which give the characteristics that enable villi to absorb the digested food.

A. They have very thin wall.
B. They are finger like projections.
C. They have a network of blood vessels close to the surface.
D. They have small pores through which food can easily pass.


A. C and D only
B. A, B and C
C. A and B only

Q. In human beings, the three pairs of salivary glands produce about

1. $1.0d{m}^3$ of saliva per day
2. $1.5d{m}^3$ of saliva per day
3. $2.0d{m}^3$ of saliva per day
4. $2.5d{m}^3$ of saliva per day

Q. Which one of the following pairs of the kinds of cells and their secretion are correctly matched?

1. $\begin{array}{ccc}\left(a\right)Oxynticcells& -& AsecretionwithpH\\ & & between2.0and3.0\end{array}$
2. $\begin{array}{ccc}\left(b\right)Alphacellsofislets& -& Secretionthatdecreases\\ ofLangerhans& & bloodsugarlevel\end{array}$
3. $\begin{array}{ccc}\left(c\right)Kupffe{r}^{\prime }scells& -& Adigestiveenzymethat\\ & & hydrolysesnucleicacids\end{array}$
4. $\begin{array}{ccc}\left(d\right)Sebaceousglands& -& Asecretionthat\\ & & evaporatesforcooling\end{array}$

Q. protects the inner lining of the stomach from the action of hydrochloric acid.

1. Mucus
2. Pepsin
3. Saliva

Q. The inner lining of stomach is protected by-

1. Pepsin
2. Mucus
3. Salivary amylase
4. Bile

Q. Maximum co-ordination of body parts is found at the age of

1. 10 years
2. 20 years
3. 5 years
4. 35 years

Q. In human beings, the three pairs of salivary glands produce about

1. $1.0d{m}^3$ of saliva per day
2. $1.5d{m}^3$ of saliva per day
3. $2.0d{m}^3$ of saliva per day
4. $2.5d{m}^3$ of saliva per day

Q. Why do you think that carbohydrates are not digested in the stomach?
(2 Marks)