Exam (elaborations)
UCI BIO 93 – MIDTERM 1 EXAM QUESTIONS AND VERIFIED ANSWERS
- Course
- Institution
UCI BIO 93 – MIDTERM 1 EXAM QUESTIONS AND VERIFIED ANSWERS...
[Show more]
Content preview
The smallest unit of a chemical element is an atom.molecules—ANSWER: a combination of two or more atoms
compound: ANSWER: a combination of two or more components in a
predetermined ratio
N, C, O, H, ANSWER... are the four components that comprise 96% of all
biological things.
What is the strongest link, according to covalent bonding?
Covalent: ANSWER: When two atoms share electrons
Ionic: ANSWER electron transfer between two atoms
Answer: What is a weak bond in a hydrogen bond?
The H atom creates a covalent link and a weaker bond with another atom in a
different molecule.
nonpolar—ANSWER: equal electron distribution
(Two identical elements)
Polar: ANSWER: uneven electron distribution
has a fee.
(water)
negative: In water, what is the charge of O?
answers in the affirmative. What is the charge of H in water?
cohesion—ANSWER connections between molecules of water
, (H2O plus H2O)
solvent-ANSWER interactions between other compounds and water
Four bonds: ANSWER: How many bonds can hydrogen form on average?
15% - ANSWER What percentage of bonds will be formed at room temperature
in water?
ANSWER: more acidic as the H+ concentration rises.
more fundamental: ANSWER what causes the H-concentration to drop...
Hydrophilic means that it has a strong attraction to water.
Ionic and polar bonding
Water is repulsed by hydrophobic materials.
(covalent bonds that are nonpolar)
Buffers: Chemical reactions that are sensitive to pH variations and resistant to
pH solution changes
7.4 ANSWER Human blood has a pH of...
Which are the primary buffers in blood, bicarbonate and carbonic acid?
right: ANSWER reaction to blood pH increase (becomes more basic)
left: ANSWER reaction when blood pH drops (becomes more acidic)
The building blocks of biological molecules are carbon atoms.
4 VE-ANSWER: What is the number of VE that carbon has?
How can functional groups attach to the carbon skeleton through covalent
bonds?
hydroxyl-alcohols-ANSWER
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Mirror. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now