Practice Biology EOC

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that requires a transport protein to help move molecules across a cell membrane from an area of high concentration to an area of low concentration.

Front

What is the difference between passive transport and active transport?

Back

Passive transport does not require energy (ATP) and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

Why are viruses considered nonliving?

Back

Viruses are considered nonliving because they cannot reproduce on their own and require a host cell to replicate.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it is translated into a protein.

Tags

NGSS.HS-LS1-1

Front

What is transcription?

Back

Transcription is the process of copying a segment of DNA into RNA, specifically mRNA, which occurs in the nucleus.

Front

What is replication in biology?

Back

Replication is the process by which DNA makes a copy of itself during cell division.

Tags

NGSS.HS-LS3-2

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Tags

NGSS.MS-LS2-1

Front

What is the function of ribosomes?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into polypeptide chains.

Front

What are the four bases of DNA?

Back

The four bases of DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil instead of thymine.