Amanda's BIOL 1107 Final Review

Front

What is a hydrocarbon?

Back

A hydrocarbon is an organic compound consisting entirely of hydrogen and carbon atoms. Examples include methane (CH4) and ethylene (C2H4).

Front

What is the primary site of glycolysis in a cell?

Back

Glycolysis occurs in the cytosol of the cell.

Front

What is the role of the P site in the ribosome?

Back

The P site (peptidyl site) is where the growing polypeptide chain is held during protein synthesis, and peptide bonds are formed.

Front

What is the base pairing rule in DNA?

Back

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Front

How do you calculate the percentage of adenine if cytosine is 23% in a DNA sequence?

Back

If cytosine is 23%, then guanine is also 23%. Since A + T = 100% - (C + G), adenine and thymine together must be 54%. Assuming A = T, adenine is 27%.

Front

What is the difference between saturated and unsaturated hydrocarbons?

Back

Saturated hydrocarbons contain only single bonds between carbon atoms, while unsaturated hydrocarbons contain one or more double or triple bonds.

Front

What is the function of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed in the process.

Front

What is the significance of the mitochondrial matrix?

Back

The mitochondrial matrix is where the Krebs cycle occurs, producing electron carriers for the electron transport chain.

Front

What is the structure of a nucleotide?

Back

A nucleotide consists of three components: a phosphate group, a sugar (deoxyribose or ribose), and a nitrogenous base (adenine, thymine, cytosine, or guanine).

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are the sites of protein synthesis, translating messenger RNA (mRNA) into polypeptide chains.