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Q 1/7
Score 0
The most likely binding site for a steroid-based hormone would be:
30
At the DNA within the nucleus, activating transcription of a gene
On the surface of the extracellular membrane
At a receptor on a molecule within the cytosol of the cell to form a signal-receptor complex
At a secondary messenger within the cytosol of the cell
Q 2/7
Score 0
Signal molecules that pass from one cell to another in plants include
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abscisic acid that gives the instruction for leaves to grow.
auxin that gives the instruction for stems to stop growing.
gibberellins that inhibit seed germination.
ethylene that gives the instruction for fruits to ripen.
7 questions
Q.
The most likely binding site for a steroid-based hormone would be:
1
30 sec
Q.
Signal molecules that pass from one cell to another in plants include
2
30 sec
Q.
Katie is required to inject Insulin to allow for the activation of GLUT4 pathways which allow glucose to enter her cells. The most likely reason for this is:
3
30 sec
Q.
Insulin requires secondary messengers to activate GLUT4 (glucose transport). This is because
4
30 sec
Q.
The activation of secondary messengers when Insulin binds to an insulin-receptor on a liver cell is considered what step in Signal Transduction
5
30 sec
Q.
A parathyroid hormone is secreted by the thyroid gland which is up
near your throat. This hormone stimulates kidney tubules to reabsorb calcium ions. The
hormone is manufactured by the ribosome, using mRNA as the instructions. Select the most likely mode of transmission
6
30 sec
Q.
A Cytotoxic T cell detects a nearby epithelial cell is infected with a virus (binding at the MHC-I receptor). The most appropriate response would be:
