Biological Molecules Lecture

A collection of fill-in-the-blank flashcards covering key concepts and terminology related to biological molecules.

A molecule is __ connected together by chemical bonds.

multiple atoms

The chemical formula for water is __.

H2O

The five most commonly found elements in living organisms are carbon, hydrogen, oxygen, nitrogen, and __.

phosphorus

The abbreviation 'C' stands for __ in the periodic table.

carbon

Atoms that are important to living things, like iron and sodium, are often represented by their __.

scientific abbreviations

Organic molecules contain a __ bond, while inorganic molecules do not.

carbon-hydrogen (C-H)

The small building blocks of carbohydrates are called __.

monosaccharides

A long chain of monosaccharides is known as a __.

polysaccharide

Proteins are made of smaller molecules called __.

amino acids

The polymer of nucleic acids is called __, which can be either DNA or RNA.

nucleic acid

The function of hemoglobin in the body is to __.

carry oxygen

Carbohydrates provide __ support for plant and bacterial cells.

structural

Triglycerides are a type of lipid that stores __ for the long term.

energy

The two types of nucleic acids are and .

DNA, RNA

Each Lego block represents a __ in the example given to explain polymers.

monomer

When two monomers are bonded together, they form a __.

dimer

A protein polymer is often referred to as a __.

polypeptide

Polymers can be made of __ monomers connected together.

different

The monomer of lipids consists of __ and glycerol.

fatty acids

Lipids create a waterproof membrane known as the __.

cell membrane

The repeating subunits of nucleotides in DNA consist of __, sugar, and nitrogenous base.

phosphate group

Actin and myosin are types of __ within the cell.

proteins