Question

what cell - structure controls transport because it is selectively permeable?
cell wall
mitochondria
cell membrane
golgi apparatus

question 20
if an erythrocyte (red blood cell) was put in a hypotonic solution, what would occur?
crenation
plasmolysis
hemolysis
turgor

question 21
the circular field that you see when you look through the microscope is called:
magnification
illumination
working distance
field of view

Explanation:

• For the first question, the cell membrane is selectively permeable and controls transport. The cell wall provides structural support, mitochondria are for energy - production, and the Golgi apparatus is involved in modifying, sorting, and packaging proteins.
• For the second question, in a hypotonic solution, water enters the erythrocyte (red blood cell) causing it to burst, which is called hemolysis. Crenation occurs in a hypertonic solution, plasmolysis in plant cells in a hypertonic environment, and turgor is related to plant cell pressure.
• For the third question, the circular field seen through a microscope is the field of view. Magnification is about how much an object is enlarged, illumination is about the light source, and working distance is the distance between the objective lens and the specimen.

Answer:

• First question: cell membrane
• Second question: Hemolysis
• Third question: Field of View