GMAS Review

Front

What is incomplete dominance?

Back

A genetic scenario where neither allele is completely dominant, resulting in a blend of traits, such as a pink flower from red and white parents.

Front

What is endocytosis?

Back

A type of molecular transport where cells engulf substances from the outside environment, bringing them into the cell.

Front

What is the function of ribosomes?

Back

Ribosomes are cellular structures that synthesize proteins by translating messenger RNA.

Front

What role do enzymes play in biochemical reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What is an active site?

Back

The specific region on an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of particles from an area of high concentration to low concentration, while osmosis specifically refers to the movement of water across a semipermeable membrane.

Front

What is co-dominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits, such as AB blood type.

Front

What is the role of mitochondria in cells?

Back

Mitochondria are known as the powerhouse of the cell, generating ATP through cellular respiration.

Front

What is the difference between exocytosis and endocytosis?

Back

Exocytosis is the process of vesicles fusing with the plasma membrane to release their contents outside the cell, while endocytosis is the process of taking substances into the cell.

Front

What is a substrate in enzymatic reactions?

Back

A substrate is the reactant molecule upon which an enzyme acts.