All the following are functions of the human liver except:
1. It converts hemoglobin to bile pigments
2. It detoxifies blood by removing toxins
3. It produces urea from the breakdown of amino acids
4. It produces enzymes for digestion of food in the duodenum

The disease resulting from an accelerated breakdown of red blood cells, leading to an increase in production of bilirubin, is known as:
1. hemolytic jaundice
2. obstructive jaundice
3. viral hepatitis
4. cirrhosis

All the following statements regarding the digestive enzymes are true except:
1. They are hydrolases.
2. They are carbohydrates.
3. They have an optimum pH.
4. They speed up a chemical reaction.

Around 60 – 70 % of starch is broken down to maltose in the duodenum by:
1. pancreatic amylase
2. trypsin
3. maltase
4. salivary amylase

Lactose intolerance is a common digestive problem. Patients with this condition lack:
1. amylase
2. galactose
3. rennin
4. lactase

Identify the incorrectly matched pair:
1. fats -- lipase
2. starch -- salivary amylase
3. maltose -- lactase
4. protein -- trypsin

In humans, the energy source that provides energy the quickest is:
1. protein
2. carbohydrate
3. lipid
4. vitamins

The calorific value is highest for:
1. carbohydrate
2. protein
3. fat
4. fiber

The coenzyme NAD, found in all living cells and involved in redox reactions, is related to:
1. vitamin D
2. riboflavin
3. niacin
4. vitamin K

A serious eating disorder marked by binge eating, followed by methods to avoid weight gain is:
1. obesity
2. bulimia
3. anorexia nervosa
4. pellagra