Bio chap 1/2 help

What is the flow of information in gene expression?

Dna transcribes to RNA which translates to amino acids which then turns into proteins

What unit is used to measure the mass of neutrons and protons.

Daltons

What is a radioactive isotope, and what are 3 ways they can be used?

An isotope that decays, giving electrons and energy. Can be used for carbon dating, medical diagnoses, and tracing atoms.

Rank the relative electronegativity of the top 4 electronegative elements we went over.

O>N>H>C

What are Van Der Walls interactions?

Weak attractions between molecules due to transient local partial charges. These interactions are reasons for interactions like geckos’ feet which is a partial positive charge interacting with a partially negative tree and being able to stick.

What are the 4 emergent properties of water that make it essential for life?

1.Cohesive Behavior (surface tension)

2. Heat absorption

3. Expansion upon heating (density)

4. Versatility as solvent (polarity)

What defines natural pH in terms of ion configuration?

Equal H+ and OH- make it neutral. and too much H+ makes it acidic and vice versa.

What distinguishes acids, bases, and buffers in terms of H+ ions

acids- Increase in H+ concentration

Bases- decrease in H+ concentration/increase in OH- concentration

Buffers- try to maintain homeostasis by taking or giving H+ ions