Practice Biology EOC

Front

What is the Calvin cycle?

Back

The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms. It is responsible for converting carbon dioxide and other compounds into glucose.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS1-6

NGSS.HS-LS2-5

Front

What is transcription in gene expression?

Back

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). It is the first step in gene expression.

Front

What is replication in biology?

Back

Replication is the process by which a cell makes an exact copy of its DNA before cell division, ensuring that each new cell receives a complete set of genetic information.

Tags

NGSS.HS-LS3-2

Front

What is the mRNA sequence produced from the DNA sequence TAG CAG TAC?

Back

The mRNA sequence produced is AUC GUC AUG.

Front

What is facilitated diffusion?

Back

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

Front

What is the role of mRNA in protein synthesis?

Back

mRNA serves as a template for the synthesis of proteins during translation, carrying the genetic information from DNA to the ribosome.

Front

What is the difference between transcription and translation?

Back

Transcription is the process of creating mRNA from DNA, while translation is the process of synthesizing proteins from mRNA.

Front

What is the function of ribosomes in cells?

Back

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

Front

What is the significance of the concentration gradient in cellular processes?

Back

The concentration gradient is the difference in concentration of a substance across a space. It drives passive transport processes like diffusion and osmosis.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP) to do so.