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Clare C.
Biomedical Science Bachelor's degree; Quality Assurance Specialist; Chemistry Tutor
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Chemistry
TutorMe
Question:

If a reaction results in a negative delta G (free energy), is that reaction spontaneous, or non-spontaneous?

Clare C.
Answer:

Spontaneous. Free energy measures spontaneity and can be determined from the values of delta H (thermal energy) and delta S (order of a system).

Biochemistry
TutorMe
Question:

Which metabolic pathway turns glucose into pyruvate?

Clare C.
Answer:

glycolysis

Biology
TutorMe
Question:

Which type of diffusion across a cell membrane does NOT require energy or assistance from membrane proteins?

Clare C.
Answer:

Passive diffusion. Passive diffusion is the movement of ions or particles across a cell membrane down their current gradient. Therefore, a water molecule may passively diffuse across a cell membrane in the direction where its current concentration is lower.

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