Unit 3 - Blood PART A & B

Question 1

Blood

Answer 1

is a connective tissue that is specialized for transport and exchange solutes and fluids

Question 2

Blood consists of:

Answer 2

a. Plasma – suspension of water and solutes

b. Formed elements – cells

Question 3

Volume is ~_ to _ liters in MEN, and ~_ liters in WOMEN (dependent on body size)

Answer 3

5

5.5

4

Question 4

Plasma

Answer 4

• makes up 1/4 of the ECF, the internal envir. that bathes cells & acts as a buffer b/t cells & the external envir.
• fluid matrix of the blood, within which cellular elements are suspended
• identical in composition to IF except for the presence of PLASMA PROTEINS

Question 5

Plasma composed of:

Answer 5

a. Water (~90%)

b. Dissolved solutes, including:
i. Proteins
ii. Electrolytes
iii. Nutrients
iv. Gasses
v. Metabolic waste products (e.g. urea, creatinine)

Question 6

How much % does WATER in plasma contribute?

Answer 6

~90%

Question 7

What do the dissolved solutes in plasma include?

Answer 7

i. Proteins
ii. Electrolytes (e.g. Na+, Cl-, H+, K+, Ca2+, HCO3-)
iii. Nutrients (e.g. glucose, amino acids, lipids, vitamins)
iv. Gasses (e.g. O2, CO2, N2)
v. Metabolic waste products (e.g. urea, creatinine)

Question 8

Proteins (within the dissolved solutes of plasma)

determines…

Answer 8

determines plasma colloid osmotic pressure (πC ) and can

act as a buffer to help maintain blood pH.

Question 9

Proteins (within the dissolved solutes of plasma) includes:

Answer 9

• Albumins
• Globulins
• Fibrinogen
• Transferrin
• Peptide/Protein Hormones

Question 10

Albumins

Answer 10

60% of all proteins; primarily responsible for πC

Question 11

Globulins

Answer 11

α, β globulins transport lipids, some metal ions and

hormrones; γ (gamma) globulins (immunoglobulins/antiboidies).

Question 12

Immunoglobulins/antiboidies (within globulins)

Answer 12

syn. & secreted by SPECIALIZED BLOOD CELLS rather than by the liver

Question 13

Fibrinogen

Answer 13

clotting protein

Question 14

Transferrin

Answer 14

transports iron that is not part of hemoglobin

Question 15

What makes most plasma proteins & secretes them into the blood?

Answer 15

LIVER

Question 16

Electrolytes (within the dissolved solutes of plasma)

Answer 16

e.g. Na+, Cl-, H+, K+, Ca2+, HCO3-

Question 17

Nutrients (within the dissolved solutes of plasma)

Answer 17

e.g. glucose, amino acids, lipids, vitamins

Question 18

Gasses (within the dissolved solutes of plasma)

Answer 18

e.g. O2, CO2, N2

Question 19

Metabolic waste products (within the dissolved solutes of plasma)

Answer 19

e.g. urea, creatinine

Question 20

Presence of _____ in the plasma makes the osmotic pressure of the blood ______ than that of the IF. Explain

Answer 20

PROTEINS

HIGHER

• this osmotic gradient tends to pull water from the IF into the capillaries & offset filtration out of the capillaries created by BP