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NucleoplasmThough nucleoplasm and cytoplasm are both semi-fluid mediums, it is cytoplasm that contains water and various types of molecules suspended or dissolved in the medium. This is according to "Human Biology" by Sylvia S. Mader p.46 sec. 3.2 How Cells Are Organized.
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Why does soap dissolve the cell membrane?

Soap dissolves the cell membrane because it is made up of molecules that can break down the fats and proteins in the membrane, causing it to lose its structure and fall apart.


Which structure regulates passage of molecules into and out of cells?

The cell membrane, also known as the plasma membrane, regulates the passage of molecules into and out of cells. It acts as a selectively permeable barrier, allowing some substances to pass through while blocking others to maintain the cell's internal environment.


What keeps the cytoplasm and the nucleus from surrounding environment?

The cytoplasm is contained by the cell membrane, which acts as a barrier to regulate the flow of molecules in and out of the cell. The nucleus is enclosed by the nuclear membrane, which also helps to protect and regulate the movement of molecules in and out of the nucleus. Together, these membranes help to maintain the distinct internal environment of the cell.


Give the 4 factors affecting substance transport?

-structure and composition of the membrane -sizes of molecules -movement of molecules -internal and external condition


The membrane surround and protect the cell?

The membrane is composed of a lipid bilayer that surrounds the cell, providing a barrier between the internal and external environment. It controls the entry and exit of molecules, allowing the cell to maintain internal conditions necessary for survival. Additionally, the membrane contains proteins that play a role in cell communication, adhesion, and transport.

Related Questions

What is the substance that fills the cell from the plasma membrane to the nuclear membrane?

The semifluid substance that fills a cell is cytoplasm.


Why does soap dissolve the cell membrane?

Soap dissolves the cell membrane because it is made up of molecules that can break down the fats and proteins in the membrane, causing it to lose its structure and fall apart.


What is the composition of a membrane?

A cellular membrane — including plasma membrane and internal membrane — is made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Creative Biogene


Which structure regulates passage of molecules into and out of cells?

The cell membrane, also known as the plasma membrane, regulates the passage of molecules into and out of cells. It acts as a selectively permeable barrier, allowing some substances to pass through while blocking others to maintain the cell's internal environment.


What 5 molecules form plasma membrane?

The main molecules that form the plasma membrane are phospholipids, cholesterol, glycolipids, proteins, and carbohydrates. These molecules are arranged in a bilayer structure, with the hydrophilic heads facing the external and internal environments and the hydrophobic tails facing each other.


What phase in the cell cycle dissolves the nuclear membrane?

The Nuclear membrane dissolves during prophase


Hatching of honey bee eggs is unique for what reason?

Because the egg membrane dissolves. In other insects,they tear through the egg membrane upon hatching. In honey bees the egg membrane dissolves.


What keeps the cytoplasm and the nucleus from surrounding environment?

The cytoplasm is contained by the cell membrane, which acts as a barrier to regulate the flow of molecules in and out of the cell. The nucleus is enclosed by the nuclear membrane, which also helps to protect and regulate the movement of molecules in and out of the nucleus. Together, these membranes help to maintain the distinct internal environment of the cell.


What do the cytoplasm do in a plant cel?

The cytoplasm is the thick, jellylike material inside the cell membrane - not including the nucleus, in which the organelles are located. The cytoplasm helps to move materials around the cell. Cytoplasm provides support to the internal structures of the cell and helps it to maintain the shape and consistency of the cell. It also dissolves cellular waste and breaks down glucose molecules into pyruvate molecules, which are used by the mitochondria.


What different roles and functions do membrane proteins serve?

Membrane proteins relay signals between the cell's internal and external environments. They transport proteins and move molecules and ions across the membrane. They have many activities such as oxidoreductase, hydrolase or transferase.


Give the 4 factors affecting substance transport?

-structure and composition of the membrane -sizes of molecules -movement of molecules -internal and external condition


The membrane surround and protect the cell?

The membrane is composed of a lipid bilayer that surrounds the cell, providing a barrier between the internal and external environment. It controls the entry and exit of molecules, allowing the cell to maintain internal conditions necessary for survival. Additionally, the membrane contains proteins that play a role in cell communication, adhesion, and transport.