BIOLOGY 1305 Practice Test 1
Questions & Answers
Neutron - ANSWERSA subatomic particle with neutral charge ( ZERO Charge)
Proton - ANSWERSA subatomic particle with positive charge (+1 Charge)
Electron - ANSWERSA subatomic particle with negative charge (-1 Charge)
Atomic Number - ANSWERSNumber of protons (IDENTIFIES ATOM)
Molecule - ANSWERSA stable association of atoms
The attractive force that links two atoms together is called: - ANSWERSChemical bond
Define an ionic bond: - ANSWERSAttraction of opposite charged ions, (STRONG,
Magnet: anion and cation)
Define a covalent bond: - ANSWERSSharing of electron pairs, (stable outer shells,
strongest)
What is a hydrogen bond? - ANSWERSSharing of H atom (+H bond links to -O or
strong electronegative atoms)
What are Van der Waals forces? - ANSWERSWeak interactions between non-polar
substances (weakest, think gecko)
The attractive force that an atomic nucleus exerts on electrons is called: -
ANSWERSElectronegativity (depends on positive charges, the closer the electrons the
higher the electronegativity)
Is Oxygen an electronagative atom? - ANSWERSYes, along with (Cl, N, C, P, H, Na, K)
Correct order (decreasing) for the relative strengths of chemical bonds? -
ANSWERSCovalent, Ionic, Hydrogen, Hydrophobic, Van der Waals
The building blocks of sugars: - ANSWERSMonosaccharides (simple sugars)
The following is a disaccharide: - ANSWERSSucrose (two monosaccharides liked
together by glycosidic linkage)
The main function of oligosaccharides is to: - ANSWERSServe as recognition signals
(specifies blood types)
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 Bestgrades2. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
