1 Which organelle is the site of photosynthesis? *
(15 Points)
A. chloroplast
B. mitochondrion
C. nucleus
O
D. ribosome

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

How can one make a supersaturated solution? (apex)