Name
:____________________________
1. Which of the following is not a component of the organization
of life?
a. community
b. organism
c. cell
d. population
e. none of
the above
2. Which of the
following is not considered a eukaryote?
a. protista
b. fungi
c. bacteria
d. plants
e. fish
3. All organisms
share several properties, including metabolism, which is the _______
a. utilization and/or generation of energy
b. regulation of internal body conditions
c. evolution of a common ancestor
d. requiring oxygen to survive
e. transmission of hereditary information
4. A substance
such as sodium chloride that is dissolved in water would be considered
a(n)______
a. solvent
b. solute
c. covalent bond
d. hydrogen bond
e. biological molecule
5. The atomic
weight of an element is determined by the____________
a. number of neutrons
b. number of isotopes
c. total number of protons, neutrons and
electrons
d. total number of protons and neutrons
e. number of protons in the nucleus
6. Covalent bonds
a. may form peptide bonds between
amino acids
b. are weaker than ionic bonds
c. involve the sharing of
electrons
d. involve a complete transfer of electrons between atoms
e. a and c
7. ______ are
atoms that have lost or gained electrons
a. neutrons
b. elements
c. isotopes
d. ions
e. radioisotopes
8. Ionic bonds
are formed by ________
a. water molecules
b. complete electron transfer to
another atom
c. sharing of electrons
d. dissolving glucose in water
e. a and c
9. Which of the
following elements is not a main
component of living organisms?
a. cobalt
c. oxygen
a. carbon
d. nitrogen
e.
hydrogen
10. Unsaturated
fatty acids
a.
are solid at room temperature
b.
contain at least one double bond between carbon atoms
c.
are only in found in animal fat
d.
contain only single bonds between carbon atoms and are found in butter
and animal fat
e.
none of the above
11.
Polysaccharides such as _________ are the storage form of carbohydrates in
animals
a.
starch
b. cellulose
c. glycogen
d. lactose
e. amylase
12. Which of the following is not a feature of
proteins?
a. are
hydrophobic
b. transport
substances across the plasma membrane
c. some are
enzymes
d. some are hormones
e. are
components of cell membranes
13.
Triglycerides are____________
a. also called phospholipids
b. synthesized in the smooth
endoplasmic reticulum
c. hydrolyzed to amino acids
d. made from cholesterol
e. steroids
14. Which of the
following is not a true statement about
nucleotides?
a.
are composed of sugars, phosphates, and bases such as guanine
b.
can function as energy carriers
c.
form hydrogen bonds with other nucleotides
d. form ionic bonds between adenine and guanine
e.
may be used as chemotherapeutic agents in the treatment of cancer
15. Large
molecules (such as proteins) are formed from smaller molecules by
_______ reactions
a. hydrolysis
b.
catabolic
c. dehydration
d. exergonic
e. ATP producing
16. Peptide
bonds are______________
a. ionic bonds
b. formed during the breakdown of
proteins into amino acids
c. formed between amino and carboxyl
groups of adjacent amino acids
d.
the same as hydrogen bonds
e. none of the above
17. Ribosomes are
organelles that have a direct role in_________________
a. producing ATP
b. glycolysis
c. lipid solubility
d. making
proteins
e. all of the above
18. Which of the following organelles is not a component of an animal cell?
a. nucleolus
b. rough endoplasmic reticulum
c. nucear envelope
d. Golgi body
e. cell wall
19. The
mitochondria is __________
a. the site of ATP synthesis in the
cell
b. an organelle which is involved in
synthesizing and transporting proteins
c. an organelle found in both prokaryotic and eukaryotic
cells
d.
formed by the nucleolus
e. responsible for lipid synthesis in
eukaryotic cells
20. Water
molecules consist of_____________
a. ionic bonds
b. peptide bonds
c. polar covalent bonds
d.
hydrogen bonds
e. c and d
21. In contrast
to animal cells, plant cells contain a ___________, which consists of cellulose
and protects the cell from shrinkage
a. chloroplast
b. central vacuole
c. nuclear membrane
d. cell wall
e.
plasma membrane
22. Organelles
are_______
a. internal membrane-bound structures
found inside eukaryotic cells
b. very small cells
c. found in all cells
d. membrane-enclosed compartments which
are sites for a variety of cellular functions
e.
a and d
23. Facilitated diffusion
a. needs
energy to transport molecules down their concentration gradient
b. needs ATP
to “pump” molecules against their concentration gradient
c. describes
the movement of oxygen into cells
d. describes
the movement of glucose into cells
e. none of the
above
24. Active
transport
a. requires energy to move molecules
against their concentration gradient
b. is a mechanism for transporting
small, lipid soluble molecules into the cell
c. requires a carrier protein to
transport glucose down its concentration gradient
d.
all of the above
e. none of the above
25. Gases such
as oxygen ______________
a. are hydrophilic
b. require a carrier protein to
transport it down its concentration gradient
c.
require ATP for transport into the cell
d. are membrane permeable and easily
diffuse across the cell membrane
e. none of the above
26. Pinocytosis
is an example of_______________
a. exocytosis
b. endocytosis
c. simple diffusion
d. active transport
e. lipid solubility
27. The movement of water across a cell membrane occurs
by________
a. luck
b. phagocytosis
c. facilitated
diffusion
d. osmosis
e. active
transport
28. Removal of LDL (cholesterol) from the blood occurs by a
process called____________
a. receptor-mediated endocytosis
b. exocytosis
c. apoptosis
d. dehydration
e. glycolysis
29. Which of the
following is a function of the cytoskeleton?
a.
maintaining cell shape (scaffolding)
b. cell movement
c. movement of materials within cell
d. muscle contraction
e. all of the above
30. If a cell is
surrounded by a hypoosmotic solution, water will ________________
a. leave the cell
b. enter the cell
c. not move
d.
cause the cell to shrink
e. none of the above
31.
Electrons
are transferred from NADH to a series of electron carriers that________
a.
lose energy as H+ are pumped across the cell membrane to drive ATP
formation
b. gain energy as oxygen donates an
electron to form NAD
c. are transported to the cytoplasm of
animal cells
d. ultimately transfer electrons to
carbon dioxide during glycolysis
e. none of the above
32.
Prior
to entering the Krebs cycle, ________ is converted into acetyl Coenzyme A
a.
pyruvic acid
b.
lactic acid
c. ethanol
d. PGA
e. rubisco
33.
Reactions
of the electron transport chain,
________
a. occur in the cytoplasm and generate
ATP by substrate level phosphorylation
b. generate ATP by creating a H+
gradient across the mitochondria membrane
c.
generate CO2 and 2 ATP molecules
d.
can occur in anaerobic conditions
e.
can occur in the absence of the Krebs cycle
34. Glycolysis
a.
produces the same amount of energy as the electron transport chain
b. utilizes 36 ATP molecules
c. is the breakdown of glucose into
pyruvic acid and 2 ATP molecules
d. occurs in the mitochondria
e. is an aerobic reaction
35. In plants,
light-dependent reactions of photosynthesis proceed in the _____ of
chloroplasts
a. cytoplasm
b. thylakoids
c. stroma
d. plasma membrane
e. cell wall
36. During
light-dependent reactions of photosynthesis,_______
a. carbon dioxide is fixed
b.
ATP and NADPH are produced
c. CO2 accepts
electrons
d. sugar molecules are produced
e. rubisco combines with PGA to form
G3P
37. Identify which
of the following substances accumulates inside the thylakoid compartment of
chloroplasts during the light-dependent reactions
a. glucose
b. G3P
c. chlorophyll
d. hydrogen ions (H+)
e.
pyruvate
38. When
photosystem II absorbs light, ___________
a.
sugars are produced
b. Electrons from the splitting of
water are donated to chlorophyll
c. chlorophyll loses two electrons
d. b and c
e.
ATP is converted into ADP + P
39. During the
Calvin cycle, glyceraldehyde 3-phosphate is produced in the ________________
a. cytoplasm
b. chloroplast stroma
c. plasma membrane
d.
mitochondria
e. chloroplast grana
40. The Calvin
cycle begins when________
a. photons strike the chloroplast grana
b. chlorophyll is activated
c.
carbon dioxide combines with rubisco
d. electrons leave photosystem II
e. glyceraldehyde 3-phosphate is
converted into carbon dioxide