Transcript Review of MOCT Questions

Review of MOCT
Questions
1. A scientist performs a series of
experiments to confirm an idea regarding
cellular metabolism. The results of the
experiment support the scientist’s initial
idea, and after conferring with
colleagues, the scientist discovers that
evidence from many experiments has
supported the same idea. This idea
could now be considered a(n) ___.
a. theory
b. hypothesis
c. observation
d. control
2. 5.4 km = ___________ cm
a. 540
b. 5400
c. 54,000
d. 540,000
3.What topic falls under the study of
biology?
a. The chemicals in fuel
b. The makeup of the atmosphere
c. Rocks found in a riverbed
d. The digestive system of an earthworm
4. Which of the following is an observation?
a. You record the air temperature every day
for a week
b. You propose that a cold front is
approaching
c. You hypothesize that the temperature will
increase tomorrow
d. You conclude that the season is changing
5. A controlled experiment allows the
scientist to isolate and test
a. A conclusion
b. A mass of information
c. Several variables
d. A single variable
6. An organism’s niche is
a. The way the organism uses the range of
physical & biological conditions in which it
lives
b. All the physical & biological factors in the
organism’s environment
c. The range of temperatures that the
organism needs to survive
d. A full description of the place an organism
lives
7. The total amount of living tissue within a
given trophic level is called the
a. Organism mass
b. Trophic mass
c. Energy mass
d. Biomass
8. The series of predictable changes that
occurs in a community over time is called
a. Population growth
b. Ecological succession
c. Climax community
d. Climate change
9. Only 10% of the energy stored in an
organism can be passed on to the next
trophic level. Of the remaining energy,
some is used for the organism’s life
processes, and the rest is
a. Used in reproduction
b. Stored as body tissue
c. Stored as fat
d. Eliminated as heat
10. The simplest grouping of more than one
kind of organism in the biosphere is
a. A population
b. A community
c. An ecosystem
d. A species
11. In a logistic growth curve, exponential
growth is the phase in which the
population
a. Reaches carrying capacity
b. Grows quickly and few animals are dying
c. Growth begins to slow down
d. Growth stops
12. Which is an abiotic factor that might
affect the life of a water-dwelling
organism?
a. Algae growing on surface of water
b. Bacterial population in water
c. Predator population
d. Speed of water current
13. One of the greatest threats today to
biological diversity is
a. Old-growth forests
b. Ozone depletion
c. Habitat destruction
d. Monoculture
14. Which is NOT a pathway by which plants
obtain atmospheric nitrogen?
a. Chemical fertilizers
b. Lightning
c. Photosynthesis
d. Symbiotic bacteria
15. Isotopes are atoms of the same element
with the same number of protons and
a. A different number of electrons
b. A different number of molecules
c. A different number of neutrons
d. The same number of neutrons
16. When salt is dissolved in water, water is
the
a. Reactant
b. Solution
c. Solute
d. Solvent
17. A monosaccharide is a
a. Carbohydrate
b. Lipid
c. Nucleic acid
d. Protein
18. Amino acids are the building blocks of
which macromolecule?
a. Carbohydrate
b. DNA
c. Lipid
d. Protein
19. Photosynthesis uses sunlight to convert
water and carbon dioxide into
a. Oxygen
b. High energy sugars
c. ATP and oxygen
d. Oxygen and high-energy sugars
20. The process by which a cell divides into
two daughter cells is called
a. Cell division
b. Metaphase
c. Interphase
d. Mitosis
21. Algal cells are placed in an isotonic
solution. Additional amounts of solutes are
slowly added to the solution. What
happens to the cells?
a. They will begin to swell
b. They will burst
c. They will stay the same
d. They will shrink
22. Which of the following is released during
cellular respiration?
a. Oxygen
b. Air
c. Energy
d. Lactic Acid