Biology Regents Review #1

Front

What hormone is released to lower blood sugar levels after eating?

Back

Insulin

Front

During which phase of the cell cycle does DNA replication occur?

Back

S phase

Front

What molecule carries the genetic code from DNA to the ribosome for protein synthesis?

Back

mRNA

Front

Which organ in the human digestive system is responsible for nutrient absorption?

Back

Small intestine

Front

What is homeostasis?

Back

The maintenance of a stable internal environment.

Front

What is the function of glucagon in the body?

Back

Glucagon raises blood sugar levels by promoting the conversion of glycogen to glucose in the liver.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA transports amino acids to the ribosome, where they are added to the growing polypeptide chain.

Front

What is the primary function of the stomach in digestion?

Back

The stomach breaks down food using acids and enzymes.

Front

What is the difference between the small intestine and the large intestine?

Back

The small intestine is primarily responsible for nutrient absorption, while the large intestine absorbs water and forms waste.

Front

What is the significance of the G1 phase in the cell cycle?

Back

The G1 phase is the first stage of interphase where the cell grows and prepares for DNA replication.