6. The site for oxidative phosphorylation in eukaryotes is (1) Inner membrane of mitochondria (2) Vacuole membrane (3) Plasma membrane (4) Thylakoid membrane of chloroplast Oxidative phosphorylation is a […]
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CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Site of Respiration in Bacteria: Role of Mesosomes and Plasma Membrane
5.In bacteria site of respiration is- (1) Mesosome only (2) Plasma membrane (3) Endoplasmic reticulum (4) Microsomes Respiration is a vital process in all living organisms, including bacteria, where […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Photosynthesis: A Reductive Process Leading to Glucose Formation from CO2 and H2O
4. The process of photosynthesis which leads to formation of glucose from C02 and H20 is an example of (1) Oxidation (2) Reduction (3) Condensation (4) Fixation Photosynthesis is a […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Electron Transfer in Coupled Reactions: NADH and Acetaldehyde Redox Potentials Explained
Consider the following coupled reaction Acetaldehyde + 2H++2e– à Ethanol ΔE0= 0.16 V NAD+ 2H++2e– à NADH + H+ ΔE0 = -032 V Under standard conditions the transfer of electron […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Lactate Dehydrogenase Reaction: Redox Potentials and Electron Transfer Dynamics
The half reaction during reversible lactate dehydrogenase reaction and standard redox potential are Pyruvate + 2H+ + 2e– à lactate E0 = -0.185V NADH + H+ à NAD+ + 2H+ […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Choosing the Right Electron Acceptors: Analyzing Redox Potentials for Optimal Electron Transfer
1. Three electron acceptors ‘X’, ‘Y’ and ‘Z’ have redox potential (E0’) of +0.15V, +0.06V and -0.1V, respectively. For a reaction B + 2H + 2e– à BH2 E0’ = […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding DNA Melting Profiles: Why Single-Stranded DNA with Imperfect Secondary Structures Lacks Typical Melting Curves
Heating of some nucleic acids shows an increase in the absorbance at 260 nm (A260) typified by the plot shown above. The sharp transition midpoint is defined as melting temperature […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
How Double-Stranded DNA Is Denatured: The Role of Formamide and Other Agents
Double stranded DNA can be destabilized and denatured by (1) Formamide (2) Polyglycine (3) Sucrose (4) PEG Introduction DNA denaturation involves the separation of the two complementary strands of the […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Differences in DNA Denaturation Profiles: Role of GC Content and Genome Complexity
Denaturation profiles of DNA are shown below The differences in the profiles arise because (1) the DNA is single stranded but of different sizes (2) A + T content of […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Which Graph Represents Single-Stranded DNA Concentration vs Decreasing Temperature During Renaturation?
The graph between the concentration of Single stranded DNA (Y-axis) and decrease in temperature (X- axis during renaturation of DNA can be represented as Analysis During DNA renaturation (as […]
