Exam 3: Cells

Cell membranes allow certain materials in or out; such membranes are said to be ____________________ permeable.

The genetic instructions for a cell's functions are contained in the:

Before mitosis can take place,what must happen?

Human cells will absorb water and swell and burst if they are placed in a ____ solution.

The nucleus is the regulating center of a cell because it contains the ____________________.

In the process of diffusion,molecules move from an area of ____________________ to an area of ____________________.

Facilitated diffusion requires ____________________ that are part of the cell membrane.

Which of the following statements are true of the processes of mitosis and meiosis? (Read carefully and select all of the correct statements.)

The organic molecule in cell membranes that permits the diffusion of lipid-soluble materials is:

The energy for the process of active transport is provided by ____________________.

Chromosomes are made of ____________________ and are found in the ____________________ of a cell.

Which of the following statements are true of cell organelles? (Read carefully and select all of the correct statements.)

Oxygen and carbon dioxide are exchanged in tissues by the process of:

In protein synthesis,the amino acids are brought to the mRNA by:

If a DNA triplet is ATG,the corresponding mRNA triplet will be ____,and the corresponding tRNA triplet will be ____.

A solution with a greater salt concentration than cells is said to be:

The process of pinocytosis is important to:

The process of osmosis involves:

The process of mitosis produces ____ cells,each with the ____ number of chromosomes.

Which of the following statements are true of solutions? (Read carefully and select all of the correct statements.)