multiple choice Flashcards
3 Hydropathy plot indicates:…
a stretch of amino acids forming a single pass trans membrane domain.
4 Facilitaed diffusion through a biological membrane is…
driven by a distance of solute concentrations
5, Enzyme inhibitors targetting cancer cells through the warbug effect…
have been found to be affective when directed against the enzymes for the 1,3,10th steps
6Living organisms require a continual supply of energy to exists because…
they are creating order out of disorder inside their cells
7 Aside from maintaining the integrity of this heredity material the most important general metabolic concern of all is:…
maintaining a constant supply and concentration of ATP
8 Biological oxidation reduction reactions never involve…
formation of free e-.
9 The steps of glycolosis between G#P amd 3P involve all of the following accept…
oxidation of nadh to nad+
10 When a musclke is stimulated to contract aerobically less lactic acid is formed then when it contracts anaerobically because..
under aerobic conditions most of pyruvate generated as a result of glycolysis is oxidized by citric acid cycle rather than reduced to lactate
- which one of the following statements about gluconeogenesis is false?…
It consists entirely of the reactions of glycolysis, operating in the reverse direction.
12 Which of the following types of mechanisms is not known to play a role in the reversible alteration of enzyme activity…
Activation by cleavage of an inactive zymogen
