Biology fall final review

Front

Which biomolecule helps LARGE molecules cross the membrane?

Back

Proteins are essential for facilitating the transport of large molecules across cell membranes.

Front

What is the 1st step of virus infection?

Back

Attachment is the first step in the process of virus infection, where the virus binds to the host cell.

Front

True or False: Vaccines are a preventative measure.

Back

True. Vaccines help prevent diseases by stimulating the immune system.

Front

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA?

Back

The correct amino acid sequence is Met-Pro-Val.

Front

What does mRNA do?

Back

mRNA carries copies of DNA's instructions from the nucleus to the ribosomes for protein synthesis.

Front

Define biomolecule.

Back

Biomolecules are organic molecules that are essential for life, including proteins, nucleic acids, carbohydrates, and lipids.

Front

What role do phospholipids play in cell membranes?

Back

Phospholipids form the bilayer structure of cell membranes, providing a barrier and allowing selective permeability.

Front

What is the function of ribosomes?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into amino acid sequences.

Front

Explain the process of replication in viruses.

Back

Replication is the process by which a virus makes copies of itself inside a host cell after it has attached and entered.

Front

What is the significance of the genetic code?

Back

The genetic code is a set of rules that determines how the sequence of nucleotides in DNA and RNA translates into proteins.