Biology
Mention if the following statements are true or false:
- Saliva moistens and lubricates food.
- Saliva contains a protein-digesting enzyme.
- Saliva tends to destroy germs in the mouth.
- Peristalsis occurs through all regions of the gut.
- The food in stomach stays for about 10 hours.
- Gastric juice is alkaline.
- Gastric juice contains pepsinogen.
Related Questions
Give the technical names for the following types of teeth in humans (on each side, in each jaw)
- The three last grinders.
- The pointed tooth for holding and tearing.
- The broad sharp cutting teeth.
- The two temporary (deciduous) grinding teeth.
Name the following parts of a tooth :
- Part exposed above the gum.
- The hard substance making the covering of the tooth.
- The soft connective tissue contained in the central space of the tooth.
- Bone-like structure fixing the root in position.
- Slight constriction between the root and the crown.
Name the three salivary glands.
Mention if the following statements are true (T) or false (F)
- Intestinal villi have a lymph vessel called lacteal.
- Intestine is narrow for fast movement of food.
- Large intestine secretes no enzymes.
- Bile neutralizes the acid content of the food received from the stomach.
- Pancreatic juice has enzymes to digest all the major components of food.
- The anus is surrounded by circular muscles.