Practice Questions

TLS Online TPP Program

#Question id: 10351

Plants contain two types of GOGAT; one accepts electrons from NADH, and the other accepts electrons from ferredoxin (Fd); which one of the following statements is correct?

#Unit 6. System Physiology – Plant

The NADH type of the enzyme (NADH-GOGAT) is located in plastids of nonphotosynthetic tissues such as roots or the vascular bundles of developing leaves
In vascular bundles of developing leaves, NADH-GOGAT is involved in the assimilation of NH4 + absorbed from the rhizosphere
In roots, NADH-GOGAT assimilates glutamine translocated from roots or senescing leave
The ferredoxin-dependent type of glutamate synthase (Fd-GOGAT) is found in cytoplasm and serves in photorespiratory nitrogen metabolism

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TLS Online TPP Program

#Question id: 683

#Unit 1. Molecules and their Interaction Relevant to Biology

Which factor does not help to explain why many proteins exhibit quaternary structure?

TLS Online TPP Program

#Question id: 684

#Unit 1. Molecules and their Interaction Relevant to Biology

Protein subunits in a multisubunit protein are held to each other primarily by

TLS Online TPP Program

#Question id: 685

#Unit 1. Molecules and their Interaction Relevant to Biology

A protein has a molecular weight of 5600 daltons; its subunits are about 1960 daltons. There are ________ protein chains per oligomer.

TLS Online TPP Program

#Question id: 686

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is not an example of an oligomeric protein?

TLS Online TPP Program

#Question id: 744

#Unit 1. Molecules and their Interaction Relevant to Biology

In a DNA molecule, deoxyribonucleotides are joined into a polymer by the covalent linkage of a phosphate group. The covalent link termed as:

TLS Online TPP Program

#Question id: 745

#Unit 1. Molecules and their Interaction Relevant to Biology

The structure of RNA differs from that of DNA, as RNA contains: