Exam 3 Review Q's

Question 1

Produced from lipolysis of triglycerides

Answer 1

Glycerol and fatty acids

Question 2

Most abundant product of the rxns of Krebs cycle

Answer 2

NADH (6)

Question 3

Where each process of cellular respiration occurs

Answer 3

• Glycolysis: cytosol
• Formation of acetyl-CoA: mitochondria
• Krebs cycle: mitochondria
• ETC: inner membrane of mitochondria

Question 4

Final electron acceptor in ETC

Answer 4

O2

Question 5

Gluconeogenesis

Answer 5

Synthesis of new glucose from noncarbohydrate precursors; occurs in liver and kidneys

Question 6

Glycogenesis

Answer 6

Storing glucogen; occurs in liver and muscle cells

Question 7

Glycogenolysis

Answer 7

Breakdown of stored glycogen; occurs in hepatocytes and the myocytes

Question 8

Source of most cholesterol in body

Answer 8

LDL’s and hepatocytes

Question 9

Order of filtrate flow in nephron

Answer 9

• Glomerular (Bowman’s) capsule
• Proximal convoluted tubule
• Descending limb of the loop of Henle
• Thin ascending limb of the loop of Henle
• Thick ascending limb of loop of Henle
• Distal convoluted tubule

Question 10

Carries urine from kidney to urinary bladder

Answer 10

Ureter

Question 11

Return of substances to the blood from filtrate in kidneys

Answer 11

Tubular reabsorption

Question 12

Part of renal tubule impermeable to water

Answer 12

Ascending limb

Question 13

What renal corpuscle consists of

Answer 13

Glomerulus and glomerular (Bowman’s) capsule

Question 14

Why countercurrent exchange is important in functioning of kidneys

Answer 14

Enables formation of concentrated urine

Question 15

Most abundant ion in extracellular fluid

Answer 15

Sodium

Question 16

Most abundant ion in intracellular fluid

Answer 16

Potassium

Question 17

Main protein buffer in blood

Answer 17

Hemoglobin

Question 18

Percent of extracellular fluid in body is interstitial

Answer 18

80%

Question 19

How kidneys help control pH of body fluids

Answer 19

Allow for pH adjustments
- H ions and bicarbonate ions can be reabsorbed into blood/secreted into filtrate as needed for pH adjustment

Question 20

Main hormone secreted by developing ovarian follicles

Answer 20

???

Question 21

Functions of LH

Answer 21

Stimulates cells in testes to produce testosterone

Question 22

What sperm fuses with during fertilization

Answer 22

Oocyte

Question 23

Direct effect of the inhibition of release of GnRH from hypothalamus

Answer 23

Testes will not grow at puberty and they will not produce their own testosterone and sperm

Question 24

Diploid cells produced by an embryonic germ cell

Answer 24

Spermatogonia

Question 25

What happens to corpus luteum at end of ovarian cycle if female isn’t pregnant

Answer 25

Will break down

Question 26

Transport protein

Answer 26

Hemoglobin

Question 27

Key molecule at metabolic crossroads

Answer 27

• Pyruvic acid
• Acetyl CoA
• Glucose-6-phosphate

Question 28

2 coenzymes that are used in redox rxns of aerobic respiration

Answer 28

FAD and NAD

Question 29

Structure of nephron that reabsorbs the most substances

Answer 29

PCT

Question 30

Nitrogenous waste products of humans

Answer 30

Urea

Question 31

Hormone released when blood volume and BP increase

Answer 31

ANP

Question 32

Thirst center of brain

Answer 32

Hypothalamus

Question 33

Main protein buffer in blood

Answer 33

Hemoglobin

Question 34

Greatest amount of water loss from body from this

Answer 34

Urination i think