C2.1 Chemical Metabolism/ Chemical signalling

C2.1 Chemical Metabolism/ Chemical signalling

12th Grade

29 Qs

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C2.1 Chemical Metabolism/ Chemical signalling

C2.1 Chemical Metabolism/ Chemical signalling

Assessment

Quiz

Science

12th Grade

Practice Problem

Hard

Created by

Jiezhu, Carolyn Khoo

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29 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hydrophobic and hydrophilic ligands bind with their specific receptors at which locations?

Hydrophobic ligands bind to intracellular receptors, while hydrophilic ligands bind to cell surface receptors.

Hydrophobic ligands bind to cell surface receptors, while hydrophilic ligands bind to intracellular receptors.

Both hydrophobic and hydrophilic ligands bind only to cell surface receptors.

Both hydrophobic and hydrophilic ligands bind only to intracellular receptors.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The general type of ligands that operate at neuromuscular junctions are:

Neurotransmitters

Hormones

Enzymes

Steroids

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The effects of hormone ligands include:

Regulation of physiological processes

Direct production of energy

Formation of antibodies

Digestion of food in the stomach

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The kinase domain of tyrosine kinase must undergo which process before a signal transduction pathway can be initiated?

It must be phosphorylated.

It must be degraded.

It must bind to DNA.

It must be exported from the cell.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A hormone causes DNA transcription in a cell by:

binding to a receptor and activating transcription factors

directly synthesizing DNA

breaking down the cell membrane

inhibiting RNA polymerase

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A protein kinase does which of the following?

Adds a phosphate group to a protein

Removes a phosphate group from a protein

Breaks down proteins into amino acids

Synthesizes proteins from amino acids

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a transmembrane receptor?

Enzymatic receptor.

Ion channel receptor.

Steroid hormone receptor.

G protein-coupled receptor.

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