Explanation

A peptide is a molecule composed of two or more amino acids linked together through amide bonds.

It is a polyamide, meaning it is a polymer of amino acids.

Peptides are smaller than proteins, which are long chains of amino acids.

Explanation

Starch is a polysaccharide, a long chain of glucose molecules linked together through glycosidic bonds.

It is a complex carbohydrate that serves as a energy storage molecule in plants.

Explanation

Amino acids are the building blocks of proteins, which are long chains of amino acids linked together by peptide bonds.

There are 20 different amino acids that the human body uses to build proteins.

They are essential for various cellular processes, including structure, function, and regulation.

Explanation

Aldoses are carbohydrates that contain an aldehyde group (-CHO) in their molecular structure.

The aldehyde group is a functional group that contains a carbon-oxygen double bond and a hydrogen atom.

Examples of aldoses include glucose, galactose, and ribose.

Explanation

DNA (Deoxyribonucleic acid) is the primary molecule that encodes genetic information in cells.

It is a long, double-stranded helix made up of nucleotides, which are the building blocks of genetic information.

Explanation

CH3-CH2- is the ethyl radical.

The ethyl radical is a functional group derived from ethane (C2H6) by removing a hydrogen atom.

It leaving a highly reactive species with an unpaired electron.

Explanation

Alkenes are a class of unsaturated hydrocarbons that contain one or more carbon-carbon double bonds (C=C).

This double bond is the defining feature of alkenes.

It makes them more reactive than saturated hydrocarbons (alkanes).

Explanation

Acetic acid is the main component of vinegar.

It is a liquid made by fermenting the natural sugars found in fruits, grains, and other food sources.

Vinegar is typically made from apples, grapes, or other fruits, and it contains approximately 4-6% acetic acid by volume.

Explanation

Polyethene, also known as polyethylene, is a type of plastic.

It is a thermoplastic polymer made from ethylene monomers.

It is commonly used in packaging, plastic bags, and containers.

Explanation

The prefix "hept" stands for 7 carbon atoms.

This is a Greek prefix used in chemistry to denote the number of carbon atoms in a molecule.

Here are some examples:

• Hex- means 6
• Hept- means 7
• Oct- means 8
• Non- means 9
• Dec- means 10