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What is the difference between primary and secondary growth? Use a diagram to explain secondary growth (formation of annular rings) in the stem of a woody plant. Explain why the meristematic tissue remains on the outer portion of the stem. Relate this to appearance of annual rings and the impact […]

Page: 1 of 3 Osmosis in a Real CellIntroductionIn the textbook we learn that the process of diffusion dictates that substances (any type of molecule) will move from a place or point of high concentration to a place or point of lower concentration. For example, if you spray perfume into […]

Q1. An assured drug that is used to control high blood pressure stimulates K+ excretion in the kidney such that plasma [K+] decreases from a normal value of 5 mM to 2.5 mM. Intracellular [K+] is largely unaffected. What effect this drug will have on the resting membrane potential of […]

Q1. Imagine that the connected earlobes are a recessive trait with 73 percent penetrance. The parents are heterozygous and homozygous recessive for the attached earlobe gene. What is the possibility that their first child will have attached earlobes? Q2. Archaea have very diverse environmental requirements and tolerances. From what you […]