Biology Midterm Review

Front

What is the function of carbohydrates in living organisms?

Back

Carbohydrates provide quick-release energy.

Front

What enzyme assembles nucleotides to create identical DNA strands?

Back

DNA polymerase.

Front

Which type of RNA delivers the genetic code to the tRNA?

Back

mRNA (messenger RNA).

Front

What units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides.

Front

What two components make up the backbone of a DNA nucleotide?

Back

Deoxyribose sugar and phosphate group.

Front

What are the three main types of organic molecules?

Back

Carbohydrates, proteins, and lipids.

Front

What is the primary function of proteins in the body?

Back

Proteins serve as building blocks for tissues and play roles in enzymatic reactions.

Front

What is the role of lipids in biological systems?

Back

Lipids store energy and form cell membranes.

Front

What is the structure of a nucleotide?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.