Practice Questions

TLS Online TPP Program

#Question id: 10346

Nitrite reductase will convert nitrite to ammonium. There are two types of nitrite reductase characteristics given below;
a) Both nitrite reductase consist of a single 63kD polypeptide
b) In leaf chloroplasts and root plastids contain different forms of the nitrite reductase enzyme
c) In shoot nitrite reductase directly dependent on the light reaction by the ferredoxin, it activates nitrite reductase in choloroplast
d) NADPH in the roots is provided by pentose phosphate pathway, it also activate nitrite reductase in the plastids
Which of the correct statement about nitrite reductase characteristics?

#Life Sciences

More Questions

#Question id: 40187

#Applied Microbiology

During which phase of the microbial growth cycle are cells most metabolically active and dividing at a constant maximum rate?

#Question id: 40188

#Applied Microbiology

Match the growth phase in Column A with its correct characteristic in Column B.

Column A (Phase)	Column B (Characteristic)
1. Lag Phase	A. Exponential decrease in the number of living cells.
2. Log Phase	B. Adaptation to new environment; synthesis of enzymes.
3. Stationary Phase	C. Nutrient depletion leads to equal rates of growth and death.
4. Death Phase	D. Uniform and rapid cell division; population doubles.

#Question id: 40189

#Applied Microbiology

Read the following statements regarding the bacterial growth curve and choose the correct option.

Statement I: In the Lag phase, there is an immediate increase in the cell number as bacteria start dividing instantly.

Statement II: Secondary metabolites (like antibiotics) are predominantly produced during the Stationary phase.

#Question id: 40190

#Applied Microbiology

Assertion (A): The generation time is shortest during the exponential (log) phase.

Reason (R): In the exponential phase, bacteria are adapting to the environment and repairing cellular damage.

#Question id: 40191

#Applied Microbiology

Which of the following terms describes organisms that require high hydrostatic pressure for growth and reproduction?

#Question id: 40192

#Applied Microbiology

Match the organism type in Column A with its specific environmental requirement in Column B.