Exam 3: Cells

Microvilli are small hairlike structures on the outer surface of the cells.

MATCHING Match each organelle or cell structure to its corresponding function or description. -small fingerlike projections in the plasma membrane that increase the efficiency of absorption of materials into the cell

The term organelle refers to proteins that are embedded in the cell membrane.

One of the jobs of the Golgi apparatus is to make new membranes for the cell.

The term complementary base pairing refers to the ability of the DNA nucleotide adenine to pair only with the nucleotide cytosine.

Describe the structure and function of the plasma membrane.

Which are small fingerlike projections on the plasma membrane that increase the cell's ability to absorb substances?

DNA and RNA differ in the number of strands they have,the type of sugar they have,and the types of nitrogen bases they have.

Only about half the population has which of the following organelles?

Both pinocytosis and phagocytosis are examples of active transport mechanisms.

If the DNA code is adenine - thymine - guanine,the transfer RNA code that would be called for would be adenine - uracil - guanine.

The difference between rough and smooth endoplasmic reticulum is that the rough endoplasmic reticulum has ribosomes attached to it.

During which phase of mitosis are chromosomes aligned in the center of the cell?

MATCHING Match each organelle or cell structure to its corresponding function or description. -cell structure that controls every organelle in the cytoplasm and contains chromatin

Describe or give the function of the following organelles: ribosomes,smooth and rough endoplasmic reticulum,Golgi apparatus,mitochondria,lysosomes,centrioles,microvilli,and cilia.

DNA replication occurs during prophase of mitosis.

The process of transcription occurs in the nucleus.

Which of the following are called the "power plants" of the cell?

Both chromatin and chromosomes are made up of DNA.

Match each phase of mitosis to its corresponding description. -DNA replication occurs