Question

Which of the following is not a function of human blood?

	a.	blood transports oxygen and nutrients to all body cells
	b.	blood transports carbon dioxide and other metabolic wastes from cells
	c.	blood helps maintain the body’s internal pH and water concentration
	d.	blood exchanges gases with the atmosphere primarily through the ski

Which of the following materials is not usually found in human blood plasma?

	a.	bicarbonate ions (HCO3–)
	b.	potassium ions (K+)
	c.	sodium ions (Na+)
	d.	hemoglobin molecules (Hb)

Which of the following blood cell types is paired with its correct function?

	a.	red blood cells (erythrocytes) / transporting oxygen from the lungs to body tissues
	b.	white blood cells (leukocytes) / defending against foreign pathogens
	c.	platelets (thrombocytes) / assisting in blood clotting
	d.	all of these blood cell types are paired with their correct function

Which of the following statements about antibodies is false?

	a.	antibodies are large protein molecules composed of four protein subunits
	b.	antibodies participate in the identification and destruction of foreign pathogens
	c.	type A antibodies circulate in the blood plasma of people with type A antigens
	d.	type B antibodies circulate in the blood plasma of people with type A blood

Answer 1

Question No.1

Answer : D.blood exchanges gases with the atmosphere primarily through the skin

Explanation : Blood is the fluid connective tissue which is mainly responsible for gaseous exchange primarily thrugh the lungs .

Question No.2

Answer : D. Heamoglobin molecules

Explanation : Plasma (55% of total blood ) is a Straw colored liquid component of the blood that holds the red and white cells in suspension and contain mainly ions and done plasmaprotein like albumin , globulin etc .

Question No.3

Answer:  D.All of these blood cell types are paired with their correct function

Question No.4

Answer :- A. antibodies are large protein molecules composed....Thanks