What are the requirements for photosynthesis to occur, and what is the role of atp in this reaction?
a)water, oxygen, and chemical energy are required, and atp is changed to adp. b)water, carbon dioxide, and electrical energy are required, and atp is produced. c)water, phosphate group, and thermal energy are required, and atp is lost. d)water, carbon dioxide, and sunlight are required, and atp is produced.

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance