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Chapter Quiz in Lipid and Protein Metabolism

Total questions: 50

Worksheet time: 40mins

Name
Class
Date
1.

What is the major biological macromolecule that functions as an energy reserve, structural components of cell membranes, and signaling molecules?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

2.

This refers to the synthesis and degradation of lipids for metabolic needs.

a)

Lipogenesis

b)

Lipid oxidation

c)

Lipodystrophy

d)

Lipid Metabolism

3.

What will happen when there are excess lipids?

a)

Blurry vision

b)

Slow healing of wounds

c)

Increased risk of heart diseases

d)

Frequent urination

4.

It is the simplest lipids formed by fatty acids

a)

Phospholipids

b)

Triacylglycerol

c)

Sphingolipids

d)

Cholesterol

5.

This is the principal plasma lipoproteins carrier of cholesterol

a)

IDL

b)

HDL

c)

LDL

d)

ILY

6.

Which is turned into a product that plays a role in fatty acid oxidation but not in fatty acid biosynthesis?

a)

Niacin

b)

Pyridoxamine

c)

Thiamine

d)

Riboflavin

7.

What are bile acids?

a)

Steroid acids

b)

Gastric lipase

c)

Peristaltic lipase

d)

Phospholipids

8.

What role does Acetyl-CoA play in lipid metabolism?

a)

Precursor for fatty acid biosynthesis

b)

Transport long-chain fatty acids into the mitochondrion

9.

What do you call a triglyceride packaged along with cholesterol into a large lipoprotein particle?

a)

Chylomicrons

b)

Peroxisomes

c)

Lipoproteins

d)

Triacylglycerol

10.

Which is a sign of Lipid Malabsorption?

a)

Greasy stool

b)

Excess lipid-soluble vitamins

c)

Chest Pain

d)

Weight Gain

11.

What transports lipid from tissues to the liver?

a)

HDL

b)

LDL

c)

IDL

d)

SDL

12.

What are ketone bodies usually synthesized from?

a)

Acetyl-CoA

b)

Pre-B cell

c)

Methionine

d)

Pyruvate

13.

Oxidation of fats release more energy in calories than oxidation of carbohydrates or proteins

a)

True

b)

False

14.

Bile salts convert big fat droplets into smaller droplets called micelles

a)

True

b)

False

15.

Pancreatic lipase is the 1st enzyme to bind micelles during digestion

a)

True

b)

False

16.

Triglycerides break down as glycerol and 3 fatty acids in the intestine

a)

True

b)

False

17.

During beta-oxidation the 2-carbon unit removed from fatty acid is called ________

a)

pyruvate

b)

acetic acid

c)

acetyl CoA

d)

oxaloacetate

18.

After 1 round of beta-oxidation the following products are formed

a)

acetyl CoA

b)

NADH

c)

FADH2

d)

all the above

19.

Beta-oxidation occurs in the cytoplasm

a)

True

b)

False

20.

Ketone bodies are formed from acetyl coA

a)

True

b)

False

21.

Ketone body is formed during all of the following conditions, EXCEPT

a)

starvation

b)

vigorous exercise

c)

diabetes

d)

extreme diets

22.

Blood pH becomes alkaline when ketone body levels are high

a)

True

b)

False

23.

Ketone bodies are produced in the brain

a)

True

b)

False

24.

Ketone bodies are formed when oxaloacetate levels are low

a)

True

b)

False

25.

NADH is necessary for fatty acid synthesis

a)

True

b)

False

26.

Fatty acid synthesis occurs in the mitochondria

a)

True

b)

False

27.

What type of digestion occurs in the mouth?

a)

Mechanical digestion

b)

Chemical Digestion

c)

Both

28.

After being swallowed by the mouth, food travels down a long pipe called the_____

a)

Stomach

b)

Esophagus

c)

large intestine

d)

Small Intestine

29.

After traveling down the esophagus, food reaches the _______ where it is digested by powerful acids and enzymes

a)

mouth

b)

stomach

c)

small intestine

d)

large intestine

30.

The small intestines are lined with tiny projections called_____ which absorb the nutrients from the food into the bloodstream.

a)

villi

b)

cilia

c)

flagellum

d)

esophagus

31.

What is absorbed by the large intestine before the remaining waste is excreted by the body?

a)

solid waste

b)

protein

c)

glucose

d)

water

32.

A series of enzymatic reactions clubbed together are called ___________

a)

catabolism

b)

pathway

c)

allosteric enzyme

d)

none of the above

33.

During catabolism, _________ produces maximum amount of ATP

a)

stage 1

b)

stage 2

c)

stage 3

d)

stage 4

34.

The end product of stage 2 of catabolism of macromolecules inside cells is _________

a)

monomers

b)

CO2

c)

acetyl coA

d)

polysaccharide

35.

TCA or Kreb's cycle finds place in __________ of catabolism

a)

stage 1

b)

stage 2

c)

stage 3

d)

stage 4

36.

Gluconeogenesis predominanly occurs is

a)

liver

b)

brain

c)

sketelal muscle

d)

skeletal and cardiac muscles

37.

Gluconeogenesis is a .... process.

a)

anabolic

b)

catabolic

c)

hyperbolic

d)

androbolic

38.

1. WHICH IS THE ENZYME TO CATALYZE PYRUVIXC ACID TO OXALOACETATE?

a)

PYRUVATE CARBOXYLASE

b)

HEXOKINASE

c)

GLUCOSE 6 PHOSPHATASE

d)

GLUCOKINASE

39.

Which of the following occurs in the cytosol of a eukaryotic cell?

a)

Glycolysis and fermentation

b)

Fermentation and chemiosmosis

c)

Oxidation of pyruvate to acetyl CoA

d)

Krebs cycle

40.

In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of _____.

a)

ATP, CO2, and ethanol (ethyl alcohol)

b)

ATP, CO2, and lactate

c)

ATP, NADH, and pyruvate

d)

ATP, pyruvate, and acetyl CoA

41.

One function of both alcohol fermentation and lactic acid fermentation is to _____.

a)

Reduce NAD+ to NADH

b)

Reduce FAD+ to FADH2

c)

Oxidize NADH to NAD+

d)

Reduce FADH2 to FAD+

42.

In anaerobic condition, cell carry out fermentation process. What type of cell involve in the following fermentation?

a)

Muscle

b)

Brain

c)

Bacterial

d)

Yeast

43.

Example of microorganism that involve in fermentation to produce yoghurt is

a)

Saccharomyces sp.

b)

Lactobacillus sp.

c)

Baker Yeast

d)

Acetobacter

44.
The process carried out by yeast that causes bread to rise is
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
cellular respiration
d)
yeast mitosis
45.
How are lactic acid and alcoholic fermentation similar?
a)
They have the same products
b)
They have the same reactants
c)
They both require oxygen
d)
They occur in the same organisms
46.
After intense activity, your muscles feel sore because of 
a)
the accumulation of NAD+
b)
the accumulation of lactic acid 
c)
the accumulation of ATP
d)
the accumulation of carbon dioxide
47.

What is the ultimate goal of Fermentation?

a)

to make more ATP for the cell

b)

to make more NADH for the Electron Transport Chain

c)

to remake NAD+ for Glycolysis

d)

to make glucose for the cell

48.

in which organisms does lactic acid occur?

a)

Animals, yeast, plants

b)

humans, plants, bacteria, animals

c)

Animals only

d)

yeast only

49.
Fermentation involves
a)
aerobic respiration
b)
anaerobic respiration 
50.
Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get
a)
Glucose
b)
Sunlight
c)
Oxygen
d)
Water