Question

Cameron reads in his textbook that animal cells are composed of 90 percent water and 10 percent protein, carbohydrate, nucleic acid, lipid, and other molecules. He learns that homeostasis is the process by which this composition is maintained. How does an organelle in an animal cell control the content of water and other material in the cell?

a.the cell wall splits apart to allow water and materials to enter the cell and waste products to leave the cell
b.the cell membrane is selectively permeable,whic controls the movement of materials in and out of the cell by passive and active transport
c. vacoules in the cell open and draw in the only materials needed from outside the cell
d .lysosomes move out the cell to capture and bring back needed materials

Answer 1

Answer: Which of the organelles below were observable under high power? Check all the organelles that you could see.

cell membrane

nucleus

vacuoles

ribosomes

Explanation: it is A and B for the second one and the 1st one is also A

Answer 2

The correct answer is - option B. the cell membrane is selectively permeable, which controls the movement of materials in and out of the cell by passive and active transport.

Step-by-step explanation:

The cell membrane is the most essential cell organelle that is mainly responsible for the regulation of homeostasis of the cell. It acts as a barrier between the outer environment and cell components are enclosed in the cell organelles and cytoplasm by regulating the movement of the material in and out of the cell.

This movement can be active or passive transport depending on the nature of the material as it is a selectively permeable membrane.

The correct answer is - option B.