Lipids

Q.

What is the difference between 'proteose', 'peptone' and 'peptide'?

Q. Lipids are found in the acid insoluble pool because

1. their molecular weight exceeds 1000 Da
2. they are insoluble in acid
3. they form vesicles
4. both b and c

Q.

What are 2 properties of all lipids?

Q.

Which is not polymeric

1.Lipids 2.proteins 3. nucleic acid

Q.

Explain the composition of triglyceride.

Q. The major role of minor elements inside living organisms is to act as

1. Binder of cell structure.
2. Co-factors of enzymes
3. Building blocks of important amino acids
4. Constituent of hormones.

Q. Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

1. A:Lecithin -a component of cell membrane
2. A: Triglyceride -major source of energy
3. B: Adenine -a nucleotide that makes up nucleic acids
4. B:Uracil -a component of DNA

Q.

What do lipids mean?

Q.

What are biomolecules?

Q.

All the following are compound lipids except

1. Fatty acids

2. Phospholipids

3. Glycolipids

4. Lipoproteins

Q.

Are lipids polymeric?

Q.

Given below is the chemical formula of

1. stearic acid

2. glycerol

3. fumaric acid

4. galactose

5. palmitic acid

Q.

Select the option with the incorrect statement.

I. The building blocks of Lipids are amino acids.

II. Majority of the enzymes contain a non protein part called the prosthetic group.

III. Fructose is the sweetest of all sugars.

IV. Nucleic acids are the hereditary material in living organisms.

1. IV

2. I

3. II

4. III

Q. Why fecl2 gets hydrolyzed so easily? To release HCl?

Q. Fatty acids without double bond are called fatty acids and with one or more C=C double bonds are known as fatty acids.

1. saturated
2. unsaturated
3. condensed
4. non-condensed

Q.

Where is plastocyanin found?

Q.

What Is the Difference Between Lipid and Fat?

Q.

The process of synthesis of lipids by the human body is known as ___.

1. Lipolysis

2. Lipogenesis

3. Lipogenolysis

4. None of the above

Q. Is there any chemical formula for proteins and carbohydrates

Q. Spoilage of oil can be detected by which fatty acid:

1. Erucic acid
2. Linolenic acid
3. Oleic acid
4. Linoleic acid

Q. Match the following columns.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Triglycerides& 1.Galactose\\ B.Lactose& 2.Palmiticacid\\ C.RNA& 3.Glycerol\\ D.\beta -pleated& 4.Uracil\\ E.Beewax& 5.Secondarystructure\end{array}$

1. A - 5, B - 1, C- 4, D - 2, E - 3
2. A - 3, B - 1, C- 4, D - 2, E - 5
3. A - 2, B - 1, C- 4, D - 5, E - 3
4. A - 3, B - 1, C- 4, D - 5, E - 2
5. A - 4, B - 1, C- 5, D - 2, E - 3

Q.

Which of these is NOT true for lipids?

1. They are water soluble.

2. They help in resistance to cold weather.

3. They can act as energy reserved.

4. They are made up of glucose monomers.

Q. Oils and fats are esters of fatty acids with:

1. ethanol
2. glycol
3. glycerol
4. methanol

Q.

Match the classes of carbohydrates given in column I with the examples listed in column II and choose the right answer indicating the correct combination of alphabets of the two columns.

$\begin{array}{cccc}& \text{Column I}& & \text{Column I}\\ & \text{Class of Carbohydrates}& & \text{Examples}\\ A& \text{Monosaccharides}& e& \text{Fructose}\\ B& \text{Oligosaccharides}& f& \text{Gluconic acid}\\ C& \text{Polysaccharides}& g& \text{Pectin}\\ & & h& \text{Lactose}\end{array}$

1. A = e, B = h, C = g

2. A = f, B = g, C = h

3. A = e, B =f, C = g

4. A = g, B = e, C = h

Q.

Synthesis of fatty acids is called

1. Glycolysis

2. Lipogenesis

3. None of these

4. Ketosis

Q. In the above general formula for an amino acid, the letter R stands for $N{H}_2-\underset{R}{\underset{|}{\stackrel{H}{\stackrel{|}{C}}}}-COOH$

1. Amino group
2. A carboxyl group
3. A variable group
4. A hydroxyl group

Q. Lipids are insoluble in water because lipids molecules are

1. Hydrophilic
2. Hydrophobic
3. Zwitter ions
4. Neutral

Q. Explain the structure and functions of cholesterol.

Q. Match the following columns.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Triglycerides& 1.Galactose\\ B.Lactose& 2.Palmiticacid\\ C.RNA& 3.Glycerol\\ D.\beta -pleated& 4.Uracil\\ E.Beewax& 5.Secondarystructure\end{array}$

1. A - 4, B - 1, C- 5, D - 2, E - 3
2. A - 5, B - 1, C- 4, D - 2, E - 3
3. A - 3, B - 1, C- 4, D - 5, E - 2
4. A - 2, B - 1, C- 4, D - 5, E - 3
5. A - 3, B - 1, C- 4, D - 2, E - 5

Q. Consider the following fatty acids.
a. Linolenic acid
b. Oleic acid
c. Palmitic acid
d. Stearic acid
Which of these is/are unsaturated fatty acids?

1. $1$ only
2. $1$ and $2$
3. $3$ and $4$
4. $2,3$ and $4$