give three molecules,other proteins and cholesterol ,that are present in animal cell

Hi Louie,

There are a number of other types of molecules you find in animal cells - these include:

nucleic acids - these are the molecules that make up our genetic code. At KS3 you will probably only be told about the nucleic acid called DNA, (Deoxyribose Nucleic Acid), but there is another type called RNA (RiboNucleic Acid) which you'll learn about for GCSE.

carbohydrates - these include both starches and sugars. Starch is used as a way of storing energy and sugar is used for jobs that need energy now - the process called respiration is the way that the cell releases this energy.

lipids (which are fat based molecules) - these form part of the cell membrane; some may also be used an energy store and other lipids are involved in transferring signals or messages into various parts of the cell.

Hope this is useful!

Catherine

lipids, carbohydrates and nuclei acids

Phospholipid bilayer, channel proteins, carrier proteins.

Glucose, sucrose-Carbohydrate molecules

Haemoglobin -Protein molecule

Lipid, Triglycerides -Cholesterol molecules

Carbohydrates, nucleic acids

Three molecules that are present in animal cell membranes include carbohydrates, lipids, and proteins

In addition to proteins and cholesterol, three important molecules commonly found in animal cells are:

1. Phospholipids:

  - These are major components of cell membranes, forming the lipid bilayer that provides structure and protects cellular contents.

2. Carbohydrates:

  - These are present as components of glycoproteins and glycolipids on the cell surface, playing crucial roles in cell recognition, signaling, and adhesion.

3. ATP (Adenosine Triphosphate):

  - ATP is the primary energy carrier in cells, providing the necessary energy for various cellular processes such as metabolism, transport, and mechanical work.

Three types of molecules present in animal cells, besides proteins and cholesterol, are:

1. **Carbohydrates (e.g., Glucose)**:

  - Glucose is a simple sugar that serves as a primary energy source for cells through the process of cellular respiration.

2. **Lipids (e.g., Phospholipids)**:

  - Phospholipids are a major component of cell membranes, forming a bilayer that provides structural integrity and regulates the passage of substances in and out of the cell.

3. **Nucleic Acids (e.g., DNA)**:

  - DNA (Deoxyribonucleic Acid) contains the genetic blueprint of the cell, encoding instructions for the synthesis of proteins and other crucial molecules necessary for cell function and replication.

These molecules play vital roles in the structure, function, and regulation of the cell's activities.