Exam (elaborations)
UCI Bio 93 Midterm 1 Exam with complete solutions 2024_2025.
- Course
- Institution
UCI Bio 93 Midterm 1 Exam with complete solutions 2024_2025.
[Show more]
Content preview
UCI Bio 93 Midterm 1 Exam with completesolutions 2024/2025
smallest unit of chemical elements - ANSWER-atoms
two or more atoms combined - ANSWER-molecules
two or more elements combined in a fixed ration - ANSWER-compound
... are 4 elements that make up 96% of all living matter - ANSWER-C, O, H, N
what is the strongest bond? - ANSWER-covalent bond
sharing of electrons by two atoms - ANSWER-covalent
transfer of electrons between two atoms - ANSWER-ionic
what is a weak bond? - ANSWER-hydrogen bond
the H atom forms one covalent bond and a second weaker bond with an atom in
another molecules - ANSWER-hydrogen bond
equal sharing of electrons
(two of the same element) - ANSWER-nonpolar
unequal sharing of electrons
has a charge
(water) - ANSWER-polar
what is the charge of O in water? - ANSWER-negative
, what is the charge of H in water? - ANSWER-positive
interactions between water molecules
(H2O with H2O) - ANSWER-cohesion
interactions between water and other molecules - ANSWER-solvent
what is the maximum amount of bonds that hydrogen can form? - ANSWER-4
bonds
in room temperature of water what % is the maximum amount of bonds going to
be made? - ANSWER-15%
when H+ concentration increases... - ANSWER-more acidic
what H- concentration decreases... - ANSWER-more basic
affinity for water
(polar and ionic bonds) - ANSWER-hydrophilic
repel water
(nonpolar covalent bonds) - ANSWER-hydrophobic
chemical processes are sensitive to pH changes and resist change in the pH
solution - ANSWER-buffers
the pH of human blood is... - ANSWER-7.4
what are the main buffers in blood? - ANSWER-carbonic acid and bicarbonate
response to a rise in pH in blood (becomes more basic) - ANSWER-right
response to a drop in pH in blood (becomes more acidic) - ANSWER-left
building blocks for biological molecules - ANSWER-carbon atoms
how many VE does carbon have? - ANSWER-4 VE
how do functional groups join to the carbon skeleton? - ANSWER-covalent bonds
-alcohols
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 tuition. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. 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