Diagnostic Quiz

What is the difference between an antigen and antibody?

• An antibody is any substance that prompts your body to trigger an immune response against it. Antigens include allergens, bacteria and viruses. Antigens are Y-shaped proteins that the body produces when it detects antigens. Antibodies are produced by immune cells called B cells.

• An antigen is any substance that prompts your body to trigger an immune response against it. Antigens include allergens, bacteria, and viruses. Antibodies are a type of leukocyte that the body produces when it detects antigens.

• An antigen is any substance that prompts your body to trigger an immune response against it. Antigens include allergens, bacteria and viruses. Antibodies are a type of lymphocyte that the body produces when it detects antigens.

• An antigen is any substance that prompts your body to trigger an immune response against it. Antigens include allergens, bacteria and viruses. Antibodies are proteins that the body produces when it detects antigens. Antibodies are produced by immune cells called B cells.

Which one of the following is not true about enzymes?

• Enzymes catalyze chemical reactions in living organisms

• Enzyme activity is affected by changes in pH and temperature

• Enzymes get used up in a chemical reaction

• enzymes convert substrate(s )into product(s)

What is the type of neuron that sends nerve impulses to muscles and glands, by the command of other neurons?

• Sensory Neurons

• Motor Neurons

• Interneurons

• Connecting neurons

Carbon, Hydrogen, Oxygen and Nitrogen are elements in what biomolecule?

• Carbohydrate

• Lipid

• Protein

• Nucleic acid

Peter carried out the iodine test and the DCPIP test on solution X. Both tests show positive results. What does X contain?

(1) Starch

(2) Lipid

(3) Vitamin C

(4) Glucose

• (1) and (3) only

• (2) and (3) only

• (1) and (4) only

• (2) and (4) only

Which of the following glands is located at the base of the neck?

• Hypothalamus

• Adrenal glands

• Thyroid

• Parathyroid

Name the two major parts of the central nervous system.

• The brain and the skull

• The brain and the body

• The spinal cord and the brain

• The spinal cord and the body

Homeostasis mechanisms...

• keep everything exactly the same.

• act to keep the internal environmental conditions outside the normal range

• usually operate by positive feedback systems.

• have to do with the ability to maintain a relatively stable internal environment