Test
BIBC 100 L1
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Preguntas del test (15)
1A red blood cell is 10^-5 meters in length. This is equal to [blank_start]10[blank_end] micrometers and [blank_start]10^5[blank_end] Angstroms
- A10^5
- B10
21 angstrom is equal to [blank_start]10^-10[blank_end] meters
- A10^-10
3Peptide bonds are formed by [blank_start]dehydration[blank_end] while they're broken by [blank_start]hydration[blank_end]
- Ahydration
- Bdehydration
4The reversible interactions are [blank_start]electrostatic[blank_end], [blank_start]hydrogen bonds[blank_end], [blank_start]Van der Waals[blank_end], [blank_start]covalent[blank_end], and [blank_start]photon[blank_end]
- Aelectrostatic
- Bhydrogen bonds
- CVan der Waals
- Dcovalent
- Ephoton
5Noncovalent interactions include ionic, [blank_start]dipole, van der waals, and hydrophobic[blank_end]
- Adipole, van der waals, and hydrophobic
6Ionic interactions are
- AElectrostatic interactions between permanently charged species, or between the ion and a permanent dipole
- BElectrostatic interactions between uncharged, but polar molecules
- CWeak interactions between all atoms, regardless of polarity
- DAttractive and repulsive phenomenon associated with the ordering of water molecules around nonpolar substances
7Dipole interactions are
- AElectrostatic interactions between permanently charged species, or between the ion and a permanent dipole
- BElectrostatic interactions between uncharged, but polar molecules
- CWeak interactions between all atoms, regardless of polarity
- DAttractive and repulsive phenomenon associated with the ordering of water molecules around nonpolar substances
8Select all that apply to water that influences molecular interactions in biology
- APolarity (charge)
- BPolarity (order)
- CCohesiveness (charge)
- DCohesiveness (order)
- Ehydration rxns
- Fdehydration rxns
- Gelectron transfer
- Hneutron transfer
- Iproton transfer
9How does water influence protein structure?
- Aelectric dipole, hydrophobic interactions, and hydrogen bonding creates water-free, hydrophobic environments in the protein structure, which look like indentations
- Bthe colligative properties of water, including vapor, boiling, freezing, and melting point, all come together to shape the physical structure of the protein molecule
- Cthe collective of all the weak intermolecule interactions sum up to disrupt the structure of the protein
10A molecule contains hydrogen bonds. What does this imply about the STRUCTURE of the molecule? Select all that apply
- AIt contains the unique properties of water.
- BThere is a high chance it's a protein, hydrogen bonds are crucial for proteins.
- CThere is a high chance it's DNA, hydrogen bonds are crucial for DNA.
- DThere is a high chance it's a polysaccharide, hydrogen bonds are crucial for polysaccharides.
- EThere is a high chance it's RNA, hydrogen bonds are crucial for RNA.
- FIt will bind to enzymes as a substrate
- GIt will bind to receptors as a hormone
- HIt will match mRNA to tRNA
- IIt will match DNA to RNA
- JIt will bind to neurons as nuerotransmitters
11Who said this: I believe that as the methods of structural chemistry are further applied to
physiological problems, it will be found that the significance of the hydrogen bond
for physiology is greater than that of any other single structural feature.- ALinus Pauling
- BLehninger
- CVan der Waals
12Ionic interactions can be [blank_start]attractive[blank_end] (such as between ammonia and a carboxyl group) or [blank_start]repulsive[blank_end] (such as between two ammonia, or molecules of the same charge)
- Arepulsive
- Battractive
13The hydrophobic effect
- Arefers to the association or folding of polar molecules in aq. sol.
- Brefers to the association or folding of nonpolar molecules in aq. sol.
- Cfactors into protein folding
- Dfactors into protein-protein association
- Efactors into protein disassociation
- Ffactors into formation of lipid micelles
- Gfactors into formation of fatty acids
- Hfactors into binding of steroid hormones to their receptors
- IDoes not arise because of some attractive direct force between two nonpolar molecules
- JArises because of some attractive direct force between two nonpolar molecules
14Hydrogen bonds can form between [blank_start]neutral groups[blank_end] (such as between an alcohol and an acetone) and [blank_start]peptide bonds[blank_end] (such as between an amide group and an acetone)
- Aneutral groups
- Bpeptide bonds
15Noncovalent interactions are interactions that [blank_start]don't share electrons[blank_end].
- Adon't share electrons
Información
- Descripción
- Test sobre BIBC 100 L1, creado por Winston Lee el 22/09/2016.
- Autor
- Winston Lee
- Idioma
- English
- Visitas
- 0
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