A triglyceride consists of

• up to three molecules of glycerol and one molecule of fatty acid

• up to three molecules of glycerol and three molecules of fatty acid

• one molecule of glycerol and one molecule of fatty acid

• one molecule of glycerol and up to three molecules of fatty acids

In physics, frequency means

• the amplitude of an electro-magnetic wave

• the length of an electro-magnetic wave

• the number of times per second an electro-magnetic-wave can change direction

• the strength of an electric current

The organ that NOT part of the lymphatic system is:

• Spleen

• Liver

• Thymus gland

• Lymph nodes

The correct statement as it refers to lymphatic vessels is:

• The lymphatic vessels lead to the superior vena cava

• The thoracic duct collects lymph on the left side of the body

• The cysterna chyli collects the lymph of the neck and the head

• The lymphatic vessels transport more than a hundred lites of lymph daily

This is a list of some parts of the alimentary canal:

I. oesophagus 2. duodenum 3. colon 4. stomach

Which of the following sequences then represents the

correct order in which food passes through them?:

• 1423

• 3124

• 1432

• 1234

The approximate percentage of oxygen in the

atmosphere is:

• 21%

• 33%

• 50%

• 75%

The function of the bladder is to:

• conserve body fluids and excrete waste products

• propel urine from the kidney by means of peristalsis

• act as a reservoir of urine

• do all of the above

A function of estrogen is to:-

• increase secretion of follicle stimulating hormone

• regenerate the endometrium

• develop the placenta for an ovum to be implanted

• shed the endometrium at menstruation

With regard to the peripheral nervous system, which of the following is

correct:

• It is made up of the brain and the spinal cord

• It includes both the spinal nerves and cranial nerves

• It includes only the cranial nerves

• It includes only the cranial nerves and the cerebellum.

The cells which secrete the matrix of the connective

tissue are called;

• fibroblasts

• mast cells

• macrophages

• histiocytes