Practice Questions

TLS Online TPP Program

#Question id: 12157

Which of the following statements concerning protists is false?

#Unit 9. Diversity of Life Forms

All protists are eukaryotic organisms; many are unicellular or colonial.
The primary organism that transmits malaria to humans by its bite is the tsetse fly.
All apicomplexans are parasitic.
Cellular slime molds have an amoeboid stage that may be followed by a stage during which spores are produced.

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TLS Online TPP Program

#Question id: 33392

#Unit 1. Molecules and their Interaction Relevant to Biology

For γ-Turns, which is of the following statement is correct

a. Consists of 5 amino acids

b. H-bond is seen between i and i+3

c. The conformation of i+1 is crucial

d. dihedral angles of residue i+1 are (70, -60)

which is of the following statements are correct

TLS Online TPP Program

#Question id: 22024

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the statements regarding competitive inhibition are given below

a) The effect of a competitive inhibitor depends on the inhibitor concentration, the substrate concentration and the relative affinities of the substrate and the inhibitor for the enzyme.

b) if the substrate concentration is low, the degree of inhibition will be great.

c) the substrate concentration is high, then the degree of inhibition will be marked low

d) non-competitive inhibitor can combine with an enzyme molecule to produce a dead-end complex

Choose the incorrect statement

TLS Online TPP Program

#Question id: 13233

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Question id: 15144

#Unit 4. Cell Communication and Cell Signaling

For the stimulation of B-cell responses

TLS Online TPP Program

#Question id: 11212

#Unit 7. System Physiology – Animal

The activity of acetylcholine in a synapse is terminated by its ________.