Answer: Option 4.
The fresh water is hypotonic and the salt solution is Hypertonic.
Explanation:
Hypotonic solution is a solution that have little dissolved solutes i.e low osmotic pressure compare to other solution. When a cell is put in hypotonic solution, it take in water and the cell swell up and it does not burst due to it's cell wall thereby becoming turgid or hard.
Hypertonic solution is the solution where the concentration of solute is higher outside the cell than inside the cell. Example is saline water.when a cell is placed in Hypertonic solution it will shrinks because it losses water.
Answer:
F
Explanation:
Some plants follow C3 pathway while some follow C4 pathway
There are 2 atriums, The left atrium and the right atrium
I'm pretty sure it's the cell membrane.
Answer:
To the operator of the operon
Explanation:
A repressor binds to the operator of the operon. This blocks the attachment of RNA polymerase to the promoter, preventing transcription of the genes.
You can see the different elements of the operon and the region where the repressor binds in the image below (lac-operon):
