Blog

Ligand-gated ion channels are membrane proteins that open or close in response to the binding of a chemical.

Muscle cells have a high demand for ATP, and would therefore contain many ________ to serve this requirement.

Proteins found only on the inner or outer surfaces of the plasma membrane are called ________.

Chromatin condenses into chromosomes during ________ of mitosis.

Which of the following is an example of an organic molecule?

If you counted all of the bases in a DNA molecule, and determined that 20% were thymine (T), what would be the percentage of guanine (G) present?

Water flows through a selectively permeable membrane in a process called ________. These water molecules can cross directly through the membrane, or through protein channels called ________.

When blood sugar rises, the body responds by releasing insulin from the pancreas. In this example, the pancreas is the ________________, and would be represented in figure 1.4 by letter ______.

Which of the following is NOT a characteristic of proteins?

Which of the following statements about preparation for cell division IS NOT CORRECT?