Biology Quiz on Cellular Processes

Which of the following is false about Phagocytosis?

• It is a form of exocytosis.

• It is a type of endocytosis.

• It involves the engulfing of large particles.

• It is used by immune cells to destroy pathogens.

The activity of an enzyme is changed by factors such as feedback inhibition; this factor is referred to as a(n)

• Cofactor

• Substrate

• Allosteric Modulation

• Catalyst

Tags

NGSS.HS-LS1-3

Phosphate groups may be transferred from one molecule to another during

• Oxidation

• Reduction

• Phosphorylation

• Hydrolysis

The rates of chemical reactions that occur in the human body are controlled by a particular type of protein called ________.

• Hormones

• Enzymes

• Antibodies

• Receptors

The availability of ________ determines if pyruvate continues into the citric acid cycle.

• Glucose

• Oxygen

• ATP

• NADH

Tags

NGSS.HS-LS2-5

The ________ is the portion of the mRNA that contains the coding sequence of the gene.

• Exons

• Introns

• Promoter

• Terminator

The peptide bond formed between amino acids occurs as a consequence of ________.

• Hydrolysis

• Condensation (Dehydration synthesis)

• Oxidation

• Phosphorylation

How would the lack of a required cofactor for an enzyme affect that enzyme's function?

• The enzyme would work faster.

• The enzyme would be inactive.

• The enzyme would denature.

• The enzyme would break down the cofactor.

Transcription occurs in the ________ of the cell.

• Cytoplasm

• Mitochondria

• Nucleus

• Ribosome

Which of the following statements is FALSE regarding osmosis?

• Osmosis involves the movement of water.

• Osmosis requires energy input.

• Osmosis moves water from a low solute concentration to a high solute concentration.

• Osmosis can occur across a selectively permeable membrane.