1. the reaction above is important in muscle cells during exercise to regenerate nad+ needed for glycolysis. the equilibrium constant = k = 8.8 x 103 for the reaction above. the reaction is catalyzed by lactate dehydrogenase, (for your information, not relevant for the problem). a. is g0 for the reaction positive or negative? b. which direction does the reaction proceed (forwards or backwards)? c. if a lot of lactate is added to the reaction, which direction will it drive the reaction (forward or backwards)?

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 energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?