Blood Components & Blood Typing Quiz

Which type of blood cell transports oxygen through the body?

• Leukocytes

• Erythrocytes

• Thrombocytes

• Plasma

What is a key structural feature of erythrocytes (red blood cells)?

• They contain a nucleus

• They are hemoglobin-rich and lack a nucleus

• They produce antibodies

• They are larger than leukocytes

Which type of blood cell is primarily involved in immune responses?

• Platelets

• Plasma

• Leukocytes

• Erythrocytes

Which of the following is NOT a category of leukocytes?

• Lymphocytes

• Monocytes

• Thrombocytes

• Neutrophils

What role do thrombocytes (platelets) play in the body?

• Transport nutrients

• Defend against pathogens

• Assist in blood clotting

• Carry oxygen

Plasma is mainly composed of:

• Hemoglobin

• Water and dissolved substances

• White blood cells

• Platelets

Which of the following is a dissolved substance found in plasma?

• Amino acids

• Hormones

• Metabolic waste products

• All of the above

In an experiment, the group that is expected to show a result and confirm the setup works is called the:

• Negative control

• Variable group

• Positive control

• Experimental error

Why are negative controls important in experiments?

• They prove the hypothesis correct

• They identify outside influences

• They always produce results

• They replace the positive control

A researcher testing a new blood clotting drug includes a group that does not receive the drug. This group is an example of a:

• Positive control

• Negative control

• Variable group

• Experimental trial