Hey!!! As per your demand here I am providing you Previous Year question Paper of JAM Biological Sciences Examination

SECTION – A
MULTIPLE CHOICE QUESTIONS (MCQ)

Q. 1 – Q.10 carry one mark each.

Q.1 In the binding of oxygen to hemoglobin, a plot of the fractional saturation of hemoglobin versus the partial pressure of oxygen can best be described as
(A) hyperbolic
(B) sigmoidal
(C) linear with a negative slope
(D) linear with a positive slope

Q.2 A polypeptide chain is made up of 101 amino acid residues. The polypeptide has 200 bonds about which rotation can occur. Assume that three orientations are possible about each of these bonds.Based on these assumptions, how many random coil conformations are possible for the polypeptide chain?
(A) 3200
(B) 2003
(C) 101 x 3200
(D) 101 x2003

Q.3 Which of the following acids can be used as one of the components in a buffer?
(A) Nitric acid
(B) Sulfuric acid
(C) Acetic acid
(D) Hydrochloric acid

Q.4 The bacteria that require “specialized nutrients for growth”, which can be difficult to meet in the laboratory, are called
(A) facultative
(B) obligate
(C) fastidious
(D) non-fermentor

Q.5 During urine formation, reabsorption of glucose and amino acids occurs from the glomerular filtrate in the “P” part of the nephron by the “Q” process. Choose the correct combination of P and Q.
(A) P - distal convoluted tubule Q - primary active transport
(B) P - ascending loop of Henle Q - secondary active transport
(C) P - proximal convoluted tubule Q - secondary active transport
(D) P - descending loop of Henle Q - passive diffusion

Q.6 Monoglycerides and long chain fatty acids are absorbed in the intestine. How are these molecules transported to the circulating capillary blood?
(A) In the form of chylomicrons through lymphatic duct
(B) Direct and facilitated diffusion
(C) Primary active transport
(D) Secondary active transport via a carrier protein

Q.7 An individual’s HLA haplotype is
(A) one allele at each MHC Class I locus
(B) the individual’s Class I antigen type
(C) one allele at each MHC Class II locus
(D) the individual’s complete set of MHC alleles

Q.8 Biomedical importance of specialized transduction in bacteria is due to the
(A) acquisition of Hfr plasmid
(B) transfer of genes for toxin production
(C) transfer of genes for capsule formation
(D) incorporation of jumping genes

Q.9 Which of the following pairs of cellular organelles is involved in the energy generation as well as metabolite production in a typical eukaryotic cell?
(A) Chloroplast and Lysosome
(B) Mitochondrion and Golgi body
(C) Endoplasmic reticulum and Mitochondrion
(D) Mitochondrion and Chloroplast

Q.10 The “symplast pathway” of transport in a typical plant system does NOT involve
(A) plasmodesmata
(B) transport proteins in plasma membrane
(C) cell wall and intercellular space
(D) cytoplasm

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