<span>The lac operon has three genes that encode for proteins that break down lactose into galactose and glucose. When there is no lactose around, it wouldn't make sense for the prokaryote to make these proteins as it would be a waste of energy. So, when there is no lasctose around, the lac repressor binds the operator region of the operon, which inhibits RNA polymerase's ability to bind and start gene expression. However, when lactose is available, it binds to the lac repressor and deactivates it via allosteric inhibition. Once the lac repressor is gone, the genes can be transcribed into mRNA which can be translated into proteins which can go and break down the lactose. </span>
In these questions, we're mainly focusing on osmosis. In osmosis, Water molecules tend to have a net movement from the region of higher water potential to a region of lower water potential if there's a water concentration gradient.
Other substances (not water) will flow from a higher concentration gradient to lower too, but since the question is about cells, and cells have cell membrane which is normally semi-permeable, larger molecules such as glucose may not be able to flow through, so only osmosis is applicable.
So in a solution, there is a higher water potential if the solute (such as glucose) concentration is less, and water molecules will flow away in osmosis. Therefore, question 1 is NO, because both sides (the solution in beaker and the cell cytoplasm) have the same glucose concentration, thus their water potential is the same and water molecules do not have a net flow. Yes, water molecules still flow between these two, but, they don't have a definite direction, like the number of molecules flowing from the left to the right is the same as those flowing from the right to left.
In question 2, I assume the percentages given is about the solute concentrations, Therefore since there are more water molecules in the solution which has a 0.5% solute (less solute), water will flow from the beaker to the plant cell, due to osmosis. When this happens, the plant cell may gain water, and they may become turgid due to having turgor pressure. They won't burst because cell walls protect the cell membrane.
Answer:
The correct answer is - hypogastric region.
Explanation:
The hypogastrium (additionally called the hypogastric region or suprapubic locale) is an area of the abdomen situated beneath the umbilical region. The pubis bone comprises its lower limit. The underlying foundations of the word hypogastrium signify "beneath the stomach"; the foundations of suprapubic signify "over the pubic bone".
The hypogastric region (beneath the stomach) contains the organs around the pubic bone. These incorporate bladder, some portion of the sigmoid colon, the anus, and numerous reproductive organs, for example, the uterus and ovaries in females and the prostate in guys.
Thus, the correct answer is - hypogastric region.