What is not true about the process pictured? a. molecules move against the concentration gradient. b. energy is not provided by the cell membrane. c. energy is provided by the molecules from the environment. d. molecules are moving from the inside of the cell to the outside.

Defend or refute the argument that the government has too large a presence in the agriculture industry.

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.