Biological Science - 2015 Past Year Paper - IIT JAM MCQ

The bacteria that require “specialized nutrients for growth”, which can be difficult to meet in the laboratory, are called

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.

Monoglycerides and long chain fatty acids are absorbed in the intestine. How are these molecules transported to the circulating capillary blood?

An individual’s HLA haplotype is

Biomedical importance of specialized transduction in bacteria is due to the

Which of the following pairs of cellular organelles is involved in the energy generation as well as metabolite production in a typical eukaryotic cell?

The “symplast pathway” of transport in a typical plant system does NOT involve

Estimate the net charge of a peptide Ser- Glu- Pro- Ile- Met- Ala- Pro- Val- Glu- Tyr- Pro- Lys at pH 7.0 and at pH 12.0. Typical ranges observed for pK_a values of groups in protein: α- carboxyl 3.5 - 4.0; side chain carboxyl 4.0 - 4.8; α- amino 8.0 - 9.0; phenolic (tyrosine) 9.5-10.5; side chain amino (Lys) 9.8-10.4.

A stretch of C- terminal region of adenylate kinase forms a right handed a- helix. The top view of the helical wheel representation of the C- terminal a- helical region is shown below. Val(1) is the first residue of the peptide sequence and each division in the wheel is 10o. Which of the following sequences is correct ?

Match the bacteria in Column I with the corresponding disease in Column II.

What is the ratio of [S] to K_M when the velocity of an enzyme catalyzed reaction is 80% of V_max?

Which of the following enzymes is responsible for the crosslink formation between two adjacent N acetyl muramic acid residues of the nascent peptidoglycan?

Which one of the following sugar molecules will bind to a highly specific galactose- binding protein?

During the bacterial DNA replication, simultaneous synthesis of both the leading and lagging strand are catalyzed by “P”, and during translation, peptidyl transferase reaction is catalyzed by “Q”. Choose the correct combination of P and Q.

Match the items of Column I and Column II.

Which of the following statements are TRUE for the action of lipophilic hormones?

P. They readily cross the cell membrane
Q. They bind to extracellular part of the receptor
R. They interact with the receptors in the cytoplasm or nucleus
S. They stimulate synthesis of second messenger cAMP
T. Hormone receptor complex binds to specific hormone response element in the DNA to activate or repress transcription of specific gene

Bacteria at the species level is accurately identified by

Column I lists the vitamins and Column II lists the diseases due to the deficiency of vitamins.
Match Column I and Column II.

Choose the correct chronological order of the “Era of Earth’s Geological History”.

Look at the following diagram. Cells with cell wall are placed in solutions of different osmolarity P, Q and R. Arrows indicate the net direction of water diffusion. Identify the osmolarity of the solutions P, Q and R with respect to the cells.

Antigen- binding site of an antibody molecule consists of

In a viable plate count of bacterial population each ___i___ represents a ___ii___ from the sample population

Secondary immune response is characterized by

P. short lag period
Q. low level of antibody production
R. switching of isotype from IgM to IgG
S. rapid declining of antibody titre

Choose the correct combination by matching Column I with Column II.

Choose the correct answer by matching Column I with Column II.

Choose the correct combination by matching Column I with Column II.

Generally, living organisms belonging to the same ____ are more closely related than those that are in the same ____.