Fall 2024 Final Review Practice

Front

What are the building blocks of DNA and RNA?

Back

Nucleotides are the building blocks of both DNA and RNA.

Front

What is the cell theory?

Back

The cell theory states that: 1) Cells are the smallest unit of life, 2) All living organisms are made of cells, 3) Cells come from preexisting cells.

Front

What type of cell lacks a nucleus and mitochondria but has a cell membrane and cell wall?

Back

A prokaryote is a type of cell that lacks a nucleus and mitochondria but has a cell membrane and cell wall.

Front

What is the function of primase in DNA replication?

Back

Primase synthesizes RNA primers during DNA replication.

Front

What is the final product of mitosis?

Back

The final product of mitosis is 2 identical daughter cells.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles.

Front

What is the role of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix by breaking the hydrogen bonds between the base pairs.

Front

What is the function of DNA polymerase?

Back

DNA polymerase synthesizes new strands of DNA by adding nucleotides complementary to the template strand.

Front

What are the main components of a nucleotide?

Back

A nucleotide consists of a phosphate group, a sugar (deoxyribose in DNA, ribose in RNA), and a nitrogenous base.

Front

What is the significance of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.