
C2.1 Chemical Metabolism/ Chemical signalling
Quiz
•
Science
•
12th Grade
•
Practice Problem
•
Hard
Jiezhu, Carolyn Khoo
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29 questions
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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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