Exam 3: Cells

During anaphase,the DNA replicates.

The mitochondria release energy to recharge ATP molecules.

Which of the following is not true of ion pumps?

Transfer RNA molecules carry the newly made messenger RNA to the ribosome to begin protein synthesis.

The long,taillike structure that propels sperm cells is the

Explain what would occur if a cell containing 97% water were placed in a 5% salt solution.What is this process called?

The dilute fluid that surrounds the outside of the cell is called cytoplasm.

Pinocytosis is a process by which the cell membrane takes in solid particles.

Only about half the population has cells with flagella.

Like chromosomes,ribosomes are made up mostly of nucleic acids.

Match each of the cell structures with its function or description. -Flattened sacs that process chemicals

A neoplasm that is relatively harmless is called malignant.

Ion pumps are specialized protein structures in the cell membrane.

Name and describe the phases of mitosis.

In the DNA molecule,the fact that adenine always pairs with thymine is an example of complementary base pairing.

Ribosomes can be found attached to mitochondria or floating freely in the cytoplasm.

If a blood cell is placed in a hypotonic solution:

In DNA,cytosine is always paired with uracil.

Match each of the cell structures with its function or description. -"Protein factories" for the cell

In DNA,adenine is always paired with thymine.