Previous Exam Questions

Question 1

A controlled experiment is one that

Answer 1

tests experimental and control groups and the same time

Question 2

All of the following are eukaryotic except
fungus, plant, bacteria, animal, protist

Answer 2

bacteria

Question 3

Taxonomic hierarchy

Answer 3

Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

Question 4

Bond strength strongest to weakest

Answer 4

triple nonpolar covalent, double nonpolar covalent, single nonpolar covalent, polar covalent, ionic

Question 5

cation and anion

Answer 5

positive and negative

Question 6

Why does atomic mass of isotopes change?

Answer 6

because the number of neutrons changes

Question 7

Electronegativity as you travel across the periodic table

Answer 7

increases left to right
increases bottom to top

Question 8

Bohr model

Answer 8

model with rings showing electrons/ electron shells

Question 9

Lewis structure

Answer 9

chemical symbol with valence electrons represented as dots around it

Question 10

OH-

Answer 10

hydroxide

Question 11

H+

Answer 11

hydronium

Question 12

what type of molecule is RNA

Answer 12

nucleic acid

Question 13

what type of bonds do nucleic acids have between its monomers?

Answer 13

phosphodiester

Question 14

what is robert hooke known for

Answer 14

cork cells

Question 15

cell wall of prokaryotes made of

Answer 15

peptidoglycan

Question 16

plant cells prefer a ___ solution

Answer 16

hypotonic

Question 17

animal cells prefer a ____ solution

Answer 17

isotonic

Question 18

Gibbs free energy equation

Answer 18

change in G = change in H - T(change in S)
H- enthalpy (energy)
T- temperature
S- entropy (disorder)

Question 19

endergonic gibbs

Answer 19

positive
uses energy

Question 20

exergonic gibbs

Answer 20

negative
releases energy

Question 21

enzymes do not affect

Answer 21

change in Gibbs free energy, they only lower activation energy

Question 22

reducing agent in cellular respiration

Answer 22

glucose
reduces oxygen

Question 23

oxidizing agent in cellular respiration

Answer 23

oxygen
oxidizes glucose

Question 24

which enzyme catalyzes reduction of NADP+

Answer 24

reductase
adds H

Question 25

calvin cycle steps

Answer 25

fixation, reduction, regeneration

Question 26

what ligand cannot diffuse through the cell membrane and what do they do instead?

Answer 26

polar, bind to transmembrane protein receptor

Question 27

Kinase

Answer 27

catalyzes phosphorylation causes signaling cascades

Question 28

RuBP

Answer 28

ribulose bisphosphate

Question 29

rubisco

Answer 29

ribulose bisphosphate carboxylase oxygenase

Question 30

G3P

Answer 30

Glyceraldehyde 3-phosphate

Question 31

phosphatase

Answer 31

remove phosphate groups can stop signaling cascades

Question 32

In the plant life cycle gametes are produces as a result of

Answer 32

mitosis

Question 33

mitosis is also called

Answer 33

karyokinesis

Question 34

enzyme associated with apoptosis

Answer 34

caspases

Question 35

both cells are ___ at the end of mitosis 1

Answer 35

haploid

Question 36

which enzyme catalyzes rxn that reduces FAD -> FADH2 and NAD -> NADH

Answer 36

dehydrogenases

Question 37

how to find protons, neutrons, and electrons from atomic symble

Answer 37

atomic number = both electrons and protons atomic mass = protons + neutrons

Question 38

USF and SF in membrane fluidity

Answer 38

USF fluid SF viscous

Question 39

LDL vs HDL

Answer 39

low vs high density lipoproteins low: deposits cholesterol in blood vessels high: removes cholesterol from blood to liver

Question 40

Protein confirmation

Answer 40

primary: linear AA secondary: H bonding, pleated sheets tertiary: 3D, R groups int, ionic and covalent Quaternary: aggregate together -> functional protein