A student exposes potato cubes to glucose solutions of varying concentrations and records the mass of each cube before and after placing it in the solution. The student records the data in at shown.
Glucose Solution
Concentration
(M)
0.0
0.1
0.2
0.6
1.0
Original
Mass (9)
2.08
2.08
2.08
2.07
2.08
Final
Mass (9)
2.25
2.16
2.05
1.96
1.75
% Change
in Mass
+8.17
+3.84
-1.44
-5.31
- 15.86
What can be inferred about the osmosis of water in potato cells?
The cells stop gaining water by osmosis in the 0.2 M solution, so the concentration of glucose in the potato cells must be greater than 0.2 M.
The cells stop gaining water by osmosis in the 0.2 M solution, so the concentration of glucose in the potato cells must be between 0.1 M and 0.2 M.
In the solutions where the cells lose water by osmosis, the original concentration of water in those cells must be less than the concentration of water in the solutions.
In the solutions where the cells gain water by osmosis, the original concentration of water in those cells must be greater than the concentration of water in the solutions
o

The cells stop gaining water by osmosis in the 0.2 M solution, so the concentration of glucose in the potato cells must be between 0.1 M and 0.2 M

Explanation:

Osmosis is the process by which water moved from a region of low solute concentration/high water concentration to a region of high solute concentration/low water concentration via a semi-permeable membrane.

According to this question involving a table showing the original and final mass of potato cells after exposure to varying concentrations of glucose. It can be observed that the potato cells stopped gaining water (started losing water) at glucose concentration of 0.2.

This observation suggests that the concentration of solutes in the potato cells was higher than the glucose concentration at 0.0 and 0.1, hence, causing water to move into the cells.

The correct answer will be option-A

Explanation:

The process of transcription form a transcript molecule called mRNA from a single strand of DNA called template strand or antisense strand.

The process of transcription is mediated by the RNA polymerase enzyme which adds the nucleotide base pairs in (A, U, G, or C) to 3' end of the strand thus synthesizing the strand in 5'–3' direction.

Since the direction of adding the nucleotide is to the 3' end, therefore the polarity of the template strand will be 3'–5' direction.

Thus, option-A is the correct answer.