Lesson 11: Examples of the Impact Of Herbs And Nutrients On Metabolism Flashcards Preview

Biochemistry Final Exam > Lesson 11: Examples of the Impact Of Herbs And Nutrients On Metabolism > Flashcards

Flashcards in Lesson 11: Examples of the Impact Of Herbs And Nutrients On Metabolism Deck (15):
1

A transcription factor is a protein that binds to DNA and alters the expression of a gene. True or False?

True

2

Adenylate cyclase

Select one:
a. All of these answers are correct
b. Is an enzyme
c. Amplifies signals
d. Is thought to be activated by forskolin
e. Catalyses the conversion of ATP to cyclic AMP

a. All of these answers are correct

3

Anti-oxidant activity can help to protect lipids in the cell membrane from free radical damage. True or False?

True

4

Cytochrome P450 enzymes

Select one:
a. Are the rate-limiting enzymes in glycolysis
b. Modulate Phase I of liver detoxification
c. Catalyse the conversion of testosterone to dihydrotestosterone
d. Are the rate-limiting enzymes for the synthesis of bile acids in the liver
e. Catalyse the conversion of testosterone to estradiol

b. Modulate Phase I of liver detoxification

5

Gymnema is associated with reduced

Select one:
a. Glycosylated haemoglobin
b. Intestinal absorption of glucose
c. Fasting blood glucose levels
d. Urinary glucose excretion
e. All of these answers are correct

e. All of these answers are correct

6

Iodine is a secondary messenger inside the cell that acts to transmit an electrical signal. True or False?

False

7

Magnesium

Select one:
a. All of these answers are correct
b. Binds to troponin pulling tropomyosin away from its blocking position
c. Is pumped back into the sarcoplasmic reticulum during muscle relaxation
d. Stimulates calcium reuptake in the muscle by calcium-activated ATPase
e. Status is usually assessed by DEXA scans

d. Stimulates calcium reuptake in the muscle by calcium-activated ATPase

8

Most toxins are fat-soluble and can be stored in adipose tissue for long periods of time. True or False?

True

9

Phase II liver detoxification makes intermediate substances (produced in Phase I) more fat-soluble by conjugating them with amino acids. True or False?

False

10

Poor magnesium status is NOT usually associated with

Select one:
a. Diabetes mellitus
b. Cardiovascular disease
c. Renal disease
d. Fibromyalgia
e. Eczema

e. Eczema

11

Rosmarinic acid is an anti-oxidant that is found in high concentrations in

Select one:
a. Rosemary
b. Sage
c. Lemon Balm
d. All of these answers are correct
e. Oregano

d. All of these answers are correct

12

Tumeric

Select one:
a. May stimulate the conversion of cholesterol to bile acids
b. Inhibits COX 2
c. Is a potent anti-inflammatory agent
d. All of these answers are correct
e. Inhibits 5 LOX

d. All of these answers are correct

13

Which of the following is a thyroxine antagonist used in the management of hyperthyroidism?

Select one:
a. All of these answers are correct
b. Saw Palmetto
c. Bugleweed
d. Coleus
e. Bladderwrack

c. Bugleweed

14

Which of the following is an important precursor in the production of thyroid hormones?

Select one:
a. Iodine and Tyrosine
b. Tyrosine
c. Calcium and Magnesium
d. Iodine
e. Calcium

a. Iodine and Tyrosine

15

Which of the following is INCORRECT in relation to cytokines?

Select one:
a. They are long-chain fatty acid molecules
b. They are produced by one cell but alter the function of another cell
c. They are glycoprotein molecules
d. They are released in bursts in response to real or perceived tissue injury
e. They facilitate an inflammatory response

a. They are long-chain fatty acid molecules