1) A functional group present in fats is: A) a carboxylic acid. B) an ester. C)
ID: 907460 • Letter: 1
Question
1) A functional group present in fats is:
A) a carboxylic acid. B) an ester. C) an aldehyde. D) an alcohol
2) A lipid is hydrolyzed to form a mixture of fatty acids, glycerol and phosphate as the products. The lipid would be classified as:
A) simple. B) nonsaponifiable C) miscellaneous D) complex
3) A phosphoglyceride containing a choline component is called a:
A) glycolipid. B) lecithin. C) cephaline. D) sphingolipid.
4) A wax is comprised of a long chain alcohol and a:
A) micelle. B) long chain ester. C)short chain alcohol. D) long chain fatty acid.
5) Adrenocorticoids are:
A) increased glucose in the body. B) include testosterone. C) steroid hormones. D) a cause of inflammation of the nerves.
6) An example of a simple lipid is:
A) a terpene. B) a phospholipid. C) a steroid. D) a wax
7) An example of an endocrine gland is the?
A) liver. B) pancreas. C) heart. D) gallbladder
8) Cholesterol, the most abundant steroid in the body, can not be found in which of the following sources?
A) butter. B) milk. C) green beans. D) eggs.
9) Fatty acids present as components in cell membrane are often:
A) branched. B) unsaturated. C) short chained. D) saturated
10) Glycerol is an example of:
A) an ester. B)a carboxylic acid. C) an ether. D) an alcohol
11) Membrane-enclosed bodies within eukaryotic cells are called:
A) organelles. B) prokaryotes. C) micelles. D) eukaryotes
12) A phosphoglyceride containing a choline component is called a:
A) cephaline. B) lecithin. C) glycolipid. D) sphingolipid
13) A functional group present in fats is:
A) a carboxylic acid. B) an alcohol. C) an ester. D) an aldehyde
14) A wax is comprised of a long chain alcohol and a:
A) long chain fatty acid. B) long chain ester. C) micelle. D) short chain alcohol
15) Adrenocorticoids are:
A) increased glucose in the body. B) a cause of inflammation of the nerves. C) steroid hormones. D)include testosterone.
16) Cholesterol in the human body is important because it is the raw material for bile salts and sex hormones:
A) true B) false.
17) Fatty acids usually have __________:
A) an odd number of oxygen atoms. B) an odd number of carbon atoms. C) an even number of carbon atoms. D) an odd number of oxygen atoms and an odd number of carbon atoms.
18) Glycerol is an example of?
A) an ether. B) an ester. C) a carboxylic acid. D) an alcohol.
19) Lipid oils are usually obtained from?
A) plant sources. B) animal sources. C) Both plant and animal sources. D) Neither plant nor animal sources.
20) Methandrostenolone, a common anabolic steriod, will have what possible side effects if taken frequently?
A) all the above. B) liver tumors. C) acne. D) testicular atrophy
21) This cellular organelle contains DNA which directs protein synthesis:
A) lysosome. B) nucleus. C) mitochondrion. D) endoplasmic reticulum.
22) This molecule is a triester of glycerol in which all three alcohol groups are esterified:
A) phosphoglyceride. B) micelle. C) phospholipid. D) triglyceride.
23) Which of the following hormones is an anabolic steroid?
A) progesterone. B) estrogen. C) estradoil. D) testosterone.
24) Which of the following fatty acids has the lowest melting point?
A) C17H33COOH. B) C19H39COOH. C) C17H31COOH. D) C17H29COOH
25) Which of the following fatty acids has the highest melting point?
A) C15H31COOH. B) C11H23COOH. C) C13H27COOH. D) C17H35COOH
26) Which of the following are male sex hormones?
A) estrogens. B) estrones. C) androgens. D) progesterones
27) What are the risks of estrogen therapy?
A)breast cancer. B) endometrial cancer. C) increased cholesterol. D)a & b, but not c.
28) Lipids are produced by animals and are hydrophilic compounds:
A) true B) false.
PLEASE HELP, I have to answer all of them or i'll fail
Explanation / Answer
1) A functional group present in fats is
B) an ester
Fats are mainly triglycerides are fatty acids. They are formed by an ester linkage between a glycerol and fatty acids
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2) A lipid is hydrolyzed to form a mixture of fatty acids, glycerol and phosphate as the products. The lipid would be classified as:
D) complex
Lipid containing a phosphate group is termed as phospholipid and it is one of the complex lipids
_______________________________________________________________________________________
3) A phosphoglyceride containing a choline component is called a:
B) lecithin.
_______________________________________________________________________________________
4) A wax is comprised of a long chain alcohol and a:
D) long chain fatty acid.
_________________________________________________________________________________________
5) Adrenocorticoids are:
C) steroid hormones.
_______________________________________________________________________________________
6) An example of a simple lipid is:
D) a wax
A wax contains long chains of fatty acids and alcohols and no other special structure or group is seen in its structure, therefore it is termed as simple lipid
_______________________________________________________________________________________
7) An example of an endocrine gland is the?
B) Pancreas
Endocrine glands are ductless glands which secrete hormones in our body. Pancreas functions as both endocrine as well as exocrine land. As exocrine gland, it secrete digestive hormones into the gut which help in digestion of food. As an endocrine gland, it secretes insulin which controls blood sugar
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8) Cholesterol, the most abundant steroid in the body, can not be found in which of the following sources?
C) green beans.
Cholesterol is a saturated trans fat. These fats are primarily found in foods originating from animal sources.
__________________________________________________________________________________________
9) Fatty acids present as components in cell membrane are often:
B) unsaturated
____________________________________________________________________________________________
10) Glycerol is an example of:
D) an alcohol
Glycerol contains 3 hydroxyl groups which is alcoholic functional group, therefore it is an alcohol
_____________________________________________________________________________________________
11) Membrane-enclosed bodies within eukaryotic cells are called:
A) organelles.
___________________________________________________________________________________________
12) A phosphoglyceride containing a choline component is called a:
B) lecithin.
____________________________________________________________________________________________
13) A functional group present in fats is:
C) an ester
_____________________________________________________________________________________
14) A wax is comprised of a long chain alcohol and a:
A) long chain fatty acid.
_______________________________________________________________________________________
15) Adrenocorticoids are:
C) steroid hormones
_______________________________________________________________________________________
16) Cholesterol in the human body is important because it is the raw material for bile salts and sex hormones:
A) true
________________________________________________________________________________________
17) Fatty acids usually have
C) an even number of carbon atoms.
_________________________________________________________________________________________
18) Glycerol is an example of?
D) an alcohol.
__________________________________________________________________________________________
19) Lipid oils are usually obtained from?
A) plant sources.
Lipids obtained from animal sources are usually solid at room temperature
_________________________________________________________________________________________
20) Methandrostenolone, a common anabolic steriod, will have what possible side effects if taken frequently?
A) all the above.
Methandrostenolone is used to gain muscle mass. Its long term use is significant linked to cause liver cancer. Most common side effect Methandrostenolone is seen in the form of oily skin and mild acne . It can also cause testicular atrophy.
_________________________________________________________________________________________
21) This cellular organelle contains DNA which directs protein synthesis:
C) mitochondrion.
________________________________________________________________________________________
22) This molecule is a triester of glycerol in which all three alcohol groups are esterified:
D) triglyceride.
_________________________________________________________________________________________
23) Which of the following hormones is an anabolic steroid?
D) testosterone.
_________________________________________________________________________________________
24) Which of the following fatty acids has the lowest melting point?
D) C17H29COOH
As the number of carbon atoms increase, the melting point of fatty acid increases. We have 3 fatty acids having equal number of carbon atoms. But they have different number of hydrogen atoms. The number of hydrogen atoms decrease as the unsaturation in the chain increases. Therefore we can say, C17H29COOH would be the most unsaturated fatty acid, and therefore would have lowest melting point.
_______________________________________________________________________________________
25) Which of the following fatty acids has the highest melting point?
D) C17H35COOH
Fatty acid having largest number of carbon atoms would have highest melting point
______________________________________________________________________________________
26) Which of the following are male sex hormones?
C) androgens.
______________________________________________________________________________________
27) What are the risks of estrogen therapy?
D)a & b, but not c.
_______________________________________________________________________________________
28) Lipids are produced by animals and are hydrophilic compounds:
B) false.
Lipids can also be produced by plants and many lipids produced by animals are hydrophobic
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