Tag Archives: MCAT

In a hydrogen bond between a water molecule and another water molecule ___________.

Experimental evidence based on measuring bond energies between DNA strands using all combinations of G, C, A, and T stacked bases demonstrates that the DNA double helix is stabilized by noncovalent interactions between nucleotides owing to __________ .

In the following series of reactions, what is the shared intermediate?

As a protein folds, what are the stabilizing forces that help keep the protein folded?

Energy conversion in living systems is required for what three types of work?

How do plants, fungi, and bacteria avoid the damaging effects of a hypotonic environment?

As shown below, some metabolic pathways use enzymes that are colocalized in membranes to facilitate reaction rates.  Shared intermediates are used so effectively in these types of coupled reactions because they ________________.

Which three molecules listed below are examples of biological polymers?

If a cell is placed in a hypotonic solution, then _______________.

R (relaxed) is the highly active form of an allosteric enzyme and T (tensed) is the less active form of enzyme. What would happen to [T]/[R] if substrate concentration is decreased?

Which statement below most accurately describes catabolic and anabolic pathways?

In studying a transporter, it is found that no external energy input is needed to facilitate the movement of a neutral compound through the transporter. The translocation rate reaches a plateau at specific concentration of the compound. This transporter is most likely a(n) ____________.