40. Xylem tissue is important in plants because it A) Can conduct water over long distances
B) Allows water to diffuse from the roots
C) Carries carbohydrates to all parts of the plant
D) Carries out photosynthesis

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 negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.