PBS FINAL REVIEW SEMESTER 1

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the function of hydrogen bonds in DNA?

Back

Hydrogen bonds hold the two strands of DNA together, allowing for the double helix structure.

Front

What are platelets?

Back

Platelets are irregularly shaped cell fragments in the blood that help with clotting.

Front

What is the role of red blood cells?

Back

Red blood cells contain hemoglobin and are responsible for transporting oxygen throughout the body.

Front

What temperature range is required for the Denature step of PCR?

Back

The Denature step of PCR occurs at 94-96° C.

Front

Can a person with type O blood receive blood from type A or type B?

Back

No, a person with type O blood can only receive blood from other type O donors.

Front

What is the structure of DNA?

Back

DNA is structured as a double helix, composed of two strands of nucleotides twisted around each other.

Front

What is the function of plasma in the blood?

Back

Plasma is the liquid component of blood that carries cells, nutrients, hormones, and waste products.

Front

What are the main components of blood?

Back

The main components of blood are red blood cells, white blood cells, platelets, and plasma.

Front

What is the role of white blood cells?

Back

White blood cells are part of the immune system and help the body fight infections.