Which of the following is the best definition of osmosis A T

Which of the following is the best definition of osmosis? A) The net movement of water across a selectively permeable membrane. B) The net movement of water from a region of low water potential to a region of high water potential. C) The net movement of water from a region of high water potential to a region of low water potential. D) The net movement of any substance down a solute concentration gradient. E) The net movement of glucose across a selectively permeable membrane. A fat differs from a phospholipid In that a fat contains: A) 3 fatty acids B) a wax C) a steroid D) 1 glycerol E) a phosphate group Which of the following are found in plant cells, but not animals cells? A) chloroplasts, ribosomes, vacuoles B) vacuoles, chloroplasts, cell walls C) ribosomes, cell walls, golgi D) mitochondria, ribosomes, peroxisomes E) cell walls, endoplasmic reticulum, DNA The three main processes of cellular respiration are (a)___(b)___ (c)____and they occur in the (d)____, (e)____ and (f)____, respectively. What is the overall reaction for glucose oxidation (cellular respiration)? Is glucose being oxidized or reduced? Explain your answer.

Solution

25 the answer is B. vacuoles, chloroplasts and cell walls are present in the plant cells and animal cells donot have them.

26 The three main processes of cellular respiration are a) glycolysis b) krebs cycle c) electron cycle and they occur in the d) cytoplasm e) matrix and f) mitochondria respectively.