Question

Solve 1st and 2nd questions.
Answer correctly. ​

Answer 1

Answer:

Q1)The plasma membrane is called as selectively permeable membrane because it regulates the movement of substances in and out of the cell. It means that the plasma membrane allows some material to pass through it while at the same time it blocks other material from entering through it

Q2) the colourless material comprising the living part of a cell, including the cytoplasm, nucleus, and other organelles.

PLZZ MARK BRAINLIEST

Explanation:

Answer 2

Answer:

1.)The cell membrane is selectively permeable, meaning it only lets certain things in and out. The structure of the phospholipid bilayer prevents random things from drifting through the membrane, and proteins act like doors, letting the right stuff in and out.

The plasma membrane is called selectively permeable because it only allows substances that meet a particular criterion to pass through it. This is due to its hydrophobic nature and the bilayer structure as elucidated by fluid mosaic model. This is why energy utilisation is required when there is a need to transport bigger ions, or substances against the concentration gradient across the membrane.

The plasma membrane, owing to some of its attributes, only permits substances which fit a specific set of criteria to enter the cell and hence is said to be selectively permeable.

2.) Protoplasm is the colorless liquid within a cell that comprises the cytoplasm, nucleus and organelles.

A cell is made up of a cell wall that contains protoplasm.

Protoplasm is the living part of a cell that is surrounded by a plasma membrane. In some definitions, it is a general term for the cytoplasm, but for others, it also includes the nucleoplasm

The protoplasm is generally divided into two parts: cytoplasm (that part of the protoplasm that lies outside and around the nucleus) and nucleoplasm (that part of the protoplasm that lies within the nucleus).

The cytoplasm contains various organelles, while the nucleoplasm contains the nuclear material (chromosomes) and nucleoli.

Explanation: