What molecule can oxidize NADH?  

A.  Acetaldehyde
B.  Lactate
C.  Ubiquinone
D.  Glucose
E.  Isocitrate


A.  Acetaldehyde

Biology & Microbiology

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The induced-fit model

A) was proposed by Hans Buchner. B) involves a conformational change in the shape of the enzyme. C) is also called the lock-and-key model. D) states that enzyme-substrate interactions are rigid. E) proposes that very strong covalent bonds are formed upon substrate binding.

Biology & Microbiology

Asbestos is a material that was once used extensively in construction. One risk from working in a building that contains asbestos is the development of asbestosis caused by the inhalation of asbestos fibers. Cells will phagocytize asbestos, but are not able to degrade it. As a result, asbestos fibers accumulate in _____.

A) mitochondria B) ribosomes C) peroxisomes D) lysosomes

Biology & Microbiology

Each genetically distinct group of lymphocytes that possesses the same specificity is called a ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A primer of ________ is needed at the origin of nucleotide addition.

A. helicase B. DNA C. RNA D. polymerase I E. polymerase III

Biology & Microbiology