The enzyme ptyalin acts on starch in the
...The enzyme ptyalin acts on starch in the
oesophagus
large intestine
mouth
stomach
Correct answer is C
Ptyalin is secreted in the mouth. Pepsin and renin however, in the stomach.
Which of the following ions is involved in the conduction of the nerve impulse? ...
A person with blood group O can be given blood from persons who have blood belonging to ...
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of ...
Which of the following structures controls the activities of the living cell? ...
A water medium is necessary for fertilization in ...
The chemical bond that holds the bases of the two strands of DNA together is ...
The part of the ear that contains nerve cells sensitive to sound vibrations is the ...