Identify the correct set, which shows the name of the enzyme from where it is secreted and the substrate upon which it acts.

1. Ptyalin- Intestine- Maltose

2. Ptylin- Pancreas- Lipid

3. Pepsin- Stomach wall- Caesin

4. Chymotrypsin- Salivary gland- Lactose

Match the following structures with their respective location in organs:

Select the correct option from the following:
 

Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes:

1. Duodenal cells

2. Chief cells

3. Goblet cells

4. Oxyntic cells

Space in the jaw bone unoccupied by teeth is called:

1. Dentine

2. Diastema

3. Enamel

4. Crown

Which of the following is mismatched?

1. Vitamin-K-Beri-Beri

2. Vitamin-D-Rickets

3. Vitamin-C-Scurvy

4. Vitamin-A-Xerophthalmia

The layer of cells that secrete enamel of a tooth is:

1. denoblast

2. ameloblast

3. osteoblast

4. odontoblast

Fructose is absorbed into the blood through mucosa cells of intestine by the process called:

1. Active transport

2. Facilitated transport

3. Simple diffusion 

4. Co-transport mechanism