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Biomolecules

194 Questions Start Allen Test
All Exams Allen
1953 Q1 Allen 6. NUCLEIC ACID MCQ
The Watson-Crick model of DNA double helix was proposed in :-
A.
1953
B.
1963
C.
1954
D.
1952
Q2 Allen 1. HOW TO ANALYSE CHEMICAL COMPOSITION MCQ
The most abundant intracellular cation is :
A.
Kāŗ
B.
Naāŗ
C.
Caāŗāŗ
D.
Hāŗ
Q3 Allen 2. PRIMARY AND SECONDARY METABOLITES MCQ
Codiene is :-
A.
A polymeric substance
B.
An alkaloid
C.
An essential oil
D.
A toxin
Q4 Allen 3. CARBOHYDRATES MCQ
Which is odd ā€“
A.
Chitin ā€“ Carbohydrate
B.
Pectin - Protein
C.
Steroid ā€“ Lipid
D.
Wax ā€“ Lipid
Q5 Allen 3. CARBOHYDRATES MCQ
Which is a disaccharide?
A.
Galactose
B.
Fructose
C.
Maltose
D.
Dextrin
Q6 Allen 3. CARBOHYDRATES MCQ
Sugar found in haemolymph of insects is called-
A.
Maltose
B.
Lactose
C.
Trehalose
D.
Galactose
Q7 Allen 3. CARBOHYDRATES MCQ
Carbohydrates are stored in mammals as:
A.
Glucose in liver
B.
Glycogen in muscles and spleen
C.
Lactic acid in muscles
D.
Glycogen in liver and muscles
Q8 Allen 3. CARBOHYDRATES MCQ
Translocation of sugars in flowering plants occur in the form of -
A.
Glucose
B.
Sucrose
C.
Fructose
D.
Maltose
Q9 Allen 3. CARBOHYDRATES MCQ
Sucrose is composed of -
A.
Glucose & Fructose
B.
Glucose & Glycogen
C.
Two molecules of Glucose
D.
Glycogen & Fructose
Q10 Allen 3. CARBOHYDRATES MCQ
Sugars with five membered ring are called:-
A.
Pyranose
B.
Furanose
C.
Dextrorotatory
D.
Levorotatory
Q11 Allen 3. CARBOHYDRATES MCQ
Amylose and Amylopectin chains occur in-
A.
Glycogen
B.
Starch
C.
Cellulose
D.
Chitin
Q12 Allen 3. CARBOHYDRATES MCQ
Which of the following disaccharide gives two molecules of glucose on hydrolysis?
A.
Maltose
B.
Lactose
C.
Both (1) and (2)
D.
Sucrose
Q13 Allen 3. CARBOHYDRATES MCQ
Which monosaccharide does not show optical isomerism :
A.
Dihydroxy acetone
B.
Glyceraldehyde
C.
Erythrose
D.
Ribose
Q14 Allen 3. CARBOHYDRATES MCQ
Which one of the following sets of monosaccharides forms sucrose? Yes. I can format the options exactly like this:
A.
Ī²-D-Glucopyranose and
Ī±-D-fructofuranose
B.
Ī±-D-Glucopyranose and
Ī²-D-fructopyranose
C.
Ī±-D-Galactopyranose and
Ī±-D-Glucopyranose
D.
Ī±-D-Glucopyranose and
Ī²-D-fructofuranose
Q15 Allen 3. CARBOHYDRATES MCQ
Macro molecule chitin is :
A.
Simple polysaccharide
B.
Nitrogen containing polysaccharide
C.
Phosphorus containing polysaccharide
D.
Sulphur containing polysaccharide
Q16 Allen 4. LIPIDS MCQ
All lipids are -
A.
Composed of fatty acids
B.
Triglycerides
C.
Insoluble in water
D.
All the above
Q17 Allen 4. LIPIDS MCQ
Which one of the following is not a constituent of cell membrane ?
A.
Phospholipids
B.
Cholesterol
C.
Glycolipids
D.
Proline
Q18 Allen 5. PROTEINS MCQ
Proteins present in protoplasm are very important because-
A.
They provide definite shape to cell
B.
They function as biocatalyst
C.
They yield energy
D.
They are stored food
Q19 Allen 5. PROTEINS MCQ
Unit of protein is: -
A.
Amino acid
B.
Monosaccharide
C.
$NH_3$
D.
Nucleotide
Q20 Allen 5. PROTEINS MCQ
Milk protein is-
A.
Lactogen
B.
Myosin
C.
Casein
D.
Pepsin
Q21 Allen 5. PROTEINS MCQ
The amino acids which are not synthesized in the body are called:
A.
Non-essential
B.
Essential
C.
Deaminated
D.
All of them
Q22 Allen 5. PROTEINS MCQ
For body growth and repair, one needs:
A.
Carbohydrates
B.
Fats
C.
Proteins
D.
Vitamins
Q23 Allen 5. PROTEINS MCQ
Proteins in the body are composed of: -
A.
Amino acids
B.
Natural proteins
C.
Enzymes
D.
nucleic acids
Q24 Allen 5. PROTEINS MCQ
Which is most important structural part of the body?
A.
Protein
B.
Carbohydrates
C.
Lipid
D.
Nucleic acid
Q25 Allen 5. PROTEINS MCQ
Histone is a basic protein due to -
A.
Alanine & glycine
B.
Methionine & serine
C.
Tryptophan & tyrosine
D.
Lysine & Arginine