Review LC Chs. 1-5 BIOL 1020

What is the charge of the atom modeled here? Answer both with a charge and number (-7, 0, or +7). (Atom- 1 electron, 2 protons, 1 neutron)

+1

How many hydrogens are in the molecule represented here? (Type the actual number, for example 30 not thirty).

12

Above is a model of a neutral oxygen atom. How many covalent bonds will it tend to form?

2

What is the atomic number for the atom modeled here? (Atom - 1 electron, 2 protons, 1 neutron)

2

What is the atomic mass (in Daltons or atomic mass units) for the atom modeled here? Answer just with a whole number (for example, 7 not 7.0005). (Atom- 1 electron, 2 protons, 1 neutron)

3

How many carbons are in the molecule represented here? (Type the actual number, for example 30 not thirty).

6

The two amino acids depicted above both have R groups that are: A.) polar and hydrophilic B.) polar and hydrophobic C.) charged and hydrophilic D.) charged and hydrophobic E.) nonpolar and hydrophilic F.) nonpolar and hydrophobic

A

Which of the following is NOT a characteristic of all life as we know it on Earth? A.) ability for sexual reproduction B.) ability to grow or develop C.) ability to control metabolism D.) being composed of cells E.) ability to respond to stimuli

A

Select below each property of water that is primarily due to hydrogen bonding. A.) Ice floats on liquid water. B.) Nonionic polar substances tend to dissolve in water. C.) The atomic mass of a water molecule is 18. D.) Water can exist as a solid, liquid, or gas. E.) Water moderates temperature more than most substances. F.) Water exhibits highly cohesive behavior. G.) Water has a chemical formula of H2O.

A, B, E, F

Select all of the choices where the shaded functional group in the box is hydrophilic.

A, C, D, E, F, G, H

Models of two atoms are shown in the figure. Select all of the true statements about these atoms. **(Atom 1 - 2 electrons, 2 protons, 1 neutron)**(Atom 2- 2 electrons, 2 protons, 2 neutrons)** A.) These atoms both have the same net charge. B.) These atoms both have the same atomic mass. C.) These atoms represent different elements. D.) These atoms represent different isotopes of the same element. E.) These atoms both have an unfilled valence shell. F.) These atoms both have the same number of protons. G.) These atoms both have the same number of neutrons. H.) These atoms both have the same atomic number.

A, D, F, H

Which of the following are considered carbohydrates? A.) glucose B.) DNA C.) steroid D.) phospholipid E.) cellulose F.) chitin G.) RNA H.) glycogen I.) cholesterol J.) polypeptide K.) starch L.) triacylglycerol M.) sucrose

A, E, F, H, K, M

An organism is a eukaryote with no cell walls. It could belong to which of the following kingdoms? A.) Eubacteria B.) Protista C.) Fungi D.) Plantae E.) Animalia F.) Archaebacteria

B and E

Which of the following represent correct RNA-RNA basepairing rules? A.) C-T B.) C-G C.) A-T D.) A-U E.) U-T F.) A-G

B, D

Which of the following are considered lipids? A.) glucose B.) DNA C.) steroid D.) phospholipid E.) cellulose F.) chitin G.) RNA H.) glycogen I.) cholesterol J.) polypeptide K.) starch L.) triacylglycerol M.) sucrose

C, D, I, L

Click or touch on a proton in this model of an atom.

Circle inside the atom with a positive charge

Click or touch on a neutron in this model of an atom.

Circle inside the atom with nothing inside ( no charge)

Click or touch on an electron in this model of an atom

Circle on the outside of the atom with a negative charge

Which of the following is responsible for β-pleated sheet structures in proteins? A.) hydrophobic interactions involving atoms of the variable (R) groups B.) nonpolar covalent bonds involving atoms of the polypeptide backbone C.) ionic interactions involving atoms of the polypeptide backbone D.) hydrogen bonds involving atoms of the polypeptide backbone E.) polar covalent bonds involving atoms of the variable (R) groups

D

When there is a pH change from pH 2 to pH 4 this means that A.) the amount of [H+] is 2x more than before. B.) the amount of [H+] is 2x less than before. C.) the amount of [H+] is 100x more than before. D.) the amount of [H+] is 100x less than before. E.) the amount of [H+] is 4x more than before. F.) the amount of [H+] is 4x less than before. G.) the amount of [OH-] is 2x more than before. H.) the amount of [OH-] is 2x less than before. I.) the amount of [OH-] is 100x more than before. J.) the amount of [OH-] is 100x less than before. K.) the amount of [OH-] is 4x more than before. L.) the amount of [OH-] is 4x less than before.

D, I

An organism is a multicellular eukaryote with cells organized into tissues but with no cell walls. It could belong to which of the following kingdoms? A.) Eubacteria B.) Protista C.) Fungi D.) Plantae E.) Animalia F.) Archaebacteria

E

Organisms that obtain energy by breaking down waste products and dead bodies of other organisms are most specifically called: A.) autotrophs. B.) consumers. C.) 'Bama fans. D.) producers. E.) decomposers.

E

What is your species name? (For your answer don't worry about underlining or italics rules, but do worry about capitalization rules and spelling.)

Homo sapiens

Match each monomer type or component with the category of organic molecules to which it belongs. Monomer type = amino acid, monosaccharide, nucleotide, fatty acid Organic Molecules = Proteins, lipids, nucleic acids, carbohydrate

amino acid - protein monosaccharide - carbohydrate nucleotide - nucleic acid fatty acid - lipid

Families are divided into as the next taxonomic level.

genera

Match each bond type with the category of organic molecules to which it belongs or is commonly found. Bonds = Glycosidic, Peptide, Ester, Phosphodesiter Organic Molecules = Proteins, lipids, nucleic acids, carbohydrate

glycosidic - carbohydrate peptide - protein ester - lipids phosphodiester - nucleic acids

The two amino acids depicted above both have R groups that are: A.) polar and hydrophilic B.) polar and hydrophobic C.) charged and hydrophilic D.) charged and hydrophobic E.) nonpolar and hydrophilic F.) nonpolar and hydrophobic

F