Honors Biology Chapter 2 Test Questions and Answers Already Passed
2 views 0 purchase
Course
Honors Biology
Institution
Honors Biology
Honors Biology Chapter 2 Test
Questions and Answers Already Passed
What is the role of nucleic acids in cells?
Nucleic acids store and transmit genetic information; DNA carries genetic instructions, and
RNA helps in protein synthesis.
How do enzymes affect the rate of a chemical react...
Honors Biology Chapter 2 Test
Questions and Answers Already Passed
What is the role of nucleic acids in cells?
✔✔ Nucleic acids store and transmit genetic information; DNA carries genetic instructions, and
RNA helps in protein synthesis.
How do enzymes affect the rate of a chemical reaction?
✔✔ Enzymes increase the rate of a chemical reaction by lowering the activation energy needed
for the reaction to proceed.
What is a molecule’s functional group, and why is it important?
✔✔ A functional group is a specific cluster of atoms within a molecule that is responsible for the
molecule's characteristic reactions and properties.
How does water’s polarity contribute to its role as a solvent?
✔✔ Water’s polarity allows it to dissolve many substances by surrounding and interacting with
various ions and molecules.
1
,What is a buffer, and how does it help maintain pH balance?
✔✔ A buffer is a substance that neutralizes small amounts of acids or bases to maintain a stable
pH in a solution.
What is the main function of lipids in biological systems?
✔✔ Lipids primarily serve as long-term energy storage, structural components of cell
membranes, and signaling molecules.
What are the two main types of nucleic acids, and what are their functions?
✔✔ DNA stores and transmits genetic information, while RNA plays a role in protein synthesis
and gene expression.
What is the primary difference between prokaryotic and eukaryotic cells in terms of their genetic
material?
✔✔ Prokaryotic cells have their genetic material in a nucleoid region without a membrane, while
eukaryotic cells have their genetic material enclosed in a nucleus.
What is the role of phospholipids in the cell membrane?
2
, ✔✔ Phospholipids form a bilayer that makes up the cell membrane, with hydrophilic heads
facing outward and hydrophobic tails facing inward, creating a semi-permeable barrier.
How do hydrogen bonds contribute to the properties of water?
✔✔ Hydrogen bonds between water molecules contribute to water’s high boiling point, surface
tension, and ability to dissolve other substances.
What are the three main types of bonds that can form between atoms?
✔✔ The three main types of bonds are ionic, covalent, and hydrogen bonds.
What is the role of enzymes in biological reactions?
✔✔ Enzymes act as catalysts to speed up biochemical reactions by lowering the activation
energy required.
What is a polar molecule?
✔✔ A polar molecule has a partial positive charge on one end and a partial negative charge on
the other end due to uneven distribution of electrons.
How does a hydrogen bond differ from a covalent bond?
3
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 StellarScores. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
