An object wieghing 90 n has a volume of 45 ml and has a mass of 9.0 g. what is its density? (a) 0.10g/ml (b) 0.20 g/ml (c) 5.0 g/ml (d) 10 g/ml

Which of the following conclusions can be drawn

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.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?