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Cell Membrane Questions and Answers (Q&A)

The correct answer is B. the cell membrane controls whatever is entering and exiting the cell. As the cell is somewhat the source of life and energy of a specimen, it is very important that the organelles inside are protected from outside invaders.

The cell membrane secures that all the parts of a cell remains inside and are doing their jobs. Imagine a cell without having a cell membrane, all the parts are floating in space and no animal or human will not form. It also serves as an attachment to other cell walls so the cells can successfully form a tissue.

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The answer to this is letter E. The layer of the phospholipid is sandwiched between two protein layers. It is hydrophilic and none of the above mentioned choices. This will allow water to infiltrate whenever possible. Take note that the tail of the phospholipid is known to be water-fearing.

The phospholipids usually line up and become arranged in parallel layers which can serve as your cell membranes. They are the reason why your cells are working the way that they are working. They also provide the protection that the rest of the cell needs. The tails of the phospholipid are also composed of fatty acids which explain why this part of the phospholipid avoids water.

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The correct answer to this question is A, Carbohydrate. The formula Cm (H2O)m is used to represent carbohydrates. They are made of oxygen, carbons, and hydrogen, and they are most known as sugars. However, they have other important function, which is vital to living organisms.

These functions include helping in the storing of energy and being a support system for RNA, which is a genetic molecule. Carbohydrates also include biomolecules, which are ions and particles found in organisms. The biomolecules in carbohydrates help with the immune system, growth, and development of an organism, and in blood clotting. Carbohydrates can be found in several foods eaten every day including fruits and milk.

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2 Answers

The correct answer to this question is C, protein. In the cell, the protein determines the function and health of it. The protein is responsible for almost every celluar life task. These tasks include cell shape, the organization of the cell, cleanup of waste, and the maintenence of the cell.

Proteins also provide structural support to the cytoplasm and helps in the cells biochemical reactions by lowering the activation energy. The sizes of protein can vary for they can be big or small, as well as exist alone or in multiples as a unit. They can also be mobile or immobile.

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1 Answer

Hypertonic and isotonic is true as well.

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It is none of the above

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If an animal cell is placed in a hypotonic solution, the animal cell will become swelled. This is because water will enter the cell through osmosis. Hence, the option B is correct. A hypotonic solution is the one that is concentrated with a solute and hence it contains solvent in less quantity.

Due to this reason, the water will travel into the animal cell down a gradient primarily because of the concentration differences. It is analogous to diffusion. The water usually travels the other way round it is taken out of the hypotonic solution, due to a concentration gradient.

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1 Answer

Net movement of water molecules across a partially permeable membrane from an area of high water potential to low water potential down a water potential gradient through the random movement of molecules until an equilibrium is reached.

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Channel proteins form tunnels to allow substances through tje membrane yay

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Active transport requires energybecause it is pumping particles, such as proteins, ions and sugar molecules, against a concentration gradient: from areas of lower to higher solute concentration.

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