1st Semester Review
Name: _____________________
Date: __________ Period: _____
(Required!)
Key Concepts:
Unit 1: Ecology
- Making detailed observations
- Biotic vs. abiotic factors
- 8 characteristics of life
Unit 2: Populations
- Population growth, limiting factors, &
carrying capacity
- The human population
- Using a microscope
- Estimating population size
Unit 3: Biochemistry
- macromolecules
o carbohydrates
o nucleic acids
o proteins & enzymes
o lipids
Unit 4: Cells
- cell structures & functions
- cell transport
- osmosis & diffusion
Unit 5: Plants & Reproduction
- meiosis
- parts of a flower
- pollination
-
Food chains & webs
Qualitative vs. quantitative observations
Energy in ecosystems
Scientific method
-
Pyramids of energy, biomass, and
numbers
Species interactions: predation,
competition, mutualism, commensalism,
parasitism
-
energy storage
photosynthesis and cellular respiration
chemical reactions
-
cell size
mitosis
-
fruits, nuts, & seeds
vegetative reproduction
regeneration
Vocabulary:
Refer to your 5 vocabulary sheets (Ecology, Populations, Biochemistry, Cells, Plants &
Reproduction) for a list of terms that you should know.
Readings Covered:
Pages 4-9, 12-13, 43-53, 64-68, 73-76, 99-104, 130-145, 190-217, 250-253, and 274-284, 324329, and 696-707.
What You Can Use During Your Test:
Unless you have additional special arrangements, everyone may use:
#2 pencils
Your completed 5 vocabulary sheets
Your 5 front and back pages of hand-written notes on computer paper that you have been
stapling to your vocabulary sheets
Practice Questions:
1. Which of the following characteristics is
NOT shared by both a horse and the
grass it eats?
a. Uses energy.
b. Response to stimulus.
c. Movement from place to place.
d. Stable internal environment.
2. Which of the following is a source of
energy for Earth’s living things?
a. Wind energy only.
b. Sunlight only.
c. Wind energy and sunlight.
d. Sunlight and chemical energy.
3. What are the physical, or non-living,
components of an ecosystem called?
a. Abiotic factors.
b. Temperate conditions.
c. Biotic factors.
d. Antibiotic factors.
4. Which of the following statements about
a scientific theory is NOT true?
a. It has the same meaning in
science as it does in daily life.
b. It enables scientists to make
accurate predictions about new
situations.
c. Scientific theories tie many
hypotheses together.
d. It is based on a large body of
evidence.
5. A group of individuals that belong to a
single species and that live together in a
defined area is termed a(n)
a. population.
b. ecosystem.
c. community.
d. biome.
6. The movement of individuals into an
area is called….
a. Immigration
b. Emigration
c. Population growth rate
d. Population density
7. All other things being equal, the size of
a population will decrease if…
a. Birthrate exceeds the death rate
b. Immigration rate exceeds
emigration rate
c. Death rate exceeds birthrate
d. Birthrate equals death rate
8. Which of the following is NOT an
example of a density-dependent limiting
factor?
a. Natural disaster
b. Predator
c. Competition
d. Disease
9. In the presence of unlimited resources
and in the absence of disease and
predation, what would probably happen
to a bacterial population?
a. Logistic growth
b. Exponential growth
c. Endangerment
d. Extinction
10. Which of the following best describes
human population growth?
a. The growth rate has remained
constant over time
b. Growth continues to increase at
the same rate
c. Growth has been exponential in
the last few hundred years
d. Birthrate equals deathrate
11. The way an organism makes its living,
including its interactions with biotic and
abiotic factors of its environment, is
called the organism’s…
a. Habitat
b. Niche
c. Lifestyle
d. Biome
12. The elements or compounds that enter
into a chemical reaction are called…
a. products.
b. catalysts
c. active sites
d. reactants
13. Which of the following is NOT an
organic molecule found in living
organisms?
a. protein
b. nucleic acid
c. sodium chloride
d. lipid
14. Which combination of particle and
charge is correct?
a. proton: positively charged
b. electron: positively charged
c. neutron: negatively charged
d. electron: no charge
15. Which of the following molecules is
made up of glycerol and fatty acids?
a. sugars
b. starches
c. lipids
d. nucleic acids
16. Nucleotides consist of a phosphate
group, a nitrogenous base, and a…
a. fatty acid.
b. lipid.
c. 5-carbon sugar.
d. 6-carbon sugar.
17. Animal cells have all of the following
EXCEPT…
a. mitochondria
b. chloroplasts
c. a nucleus
d. a cell membrane
18. The nucleus includes all of the following
structures EXCEPT
a. cytoplasm
b. a nuclear envelope
c. DNA
d. a nucleolus
19. Which cell structures are sometimes
found attached to the endoplasmic
reticulum?
a. chloroplasts
b. nuclei
c. mitochondria
d. ribosomes
20. The difference between prokaryotic and
eukaryotic cells involves the presence
of…
a. a nucleus
b. genetic material in the form of
DNA
c. chloroplasts
d. a cell membrane
21. Which statement is true regarding a
cell’s surface area-to-volume ratio?
a. As the size of a cell increases, its
volume decreases
b. As the size of a cell decreases,
its volume increases
c. Larger cells will have a greater
surface area-to-volume ratio
d. Smaller cells will have a greater
surface area to-volume ratio
22. Which of the following is NOT an
advantage of asexual reproduction?
a. simple and efficient
b. produces large number of
offspring quickly
c. increases genetic diversity
d. requires one parent
23. At the beginning of cell division, a
chromosome consists of two…
a. centromeres
b. centrioles
c. chromatids
d. spindles
24. The period between cell divisions is
called…
a. interphase
b. prophase
c. G3 phase
d. Cytokinesis
25. In order for a cell to divide successfully,
the cell must first…
a. Duplicate its genetic information
b. Decrease its volume
c. Increase its number of
chromosomes
d. Decreases its number of
organelles
26. The process that increases genetic
diversity within a population is…
a. Asexual reproduction
b. Sexual reproduction
c. Cell division
d. Binary fission
31. Unlike mitosis, meiosis in male
mammals results in the formation of…
a. One haploid gamete
b. Three diploid gametes
c. Four diploid gametes
d. Four haploid gametes
27. If a cell has 12 chromosomes, how
many chromosomes will each of its
daughter cells have after mitosis?
a. 4
b. 6
c. 12
d. 24
32. What happens to the number of
chromosomes in a cell during meiosis?
a. It doubles
b. It stays the same
c. It halves
d. It triples
28. If a cell has 46 chromosomes, how
many chromosomes will each of its
daughter cells have after meiosis?
a. 23
b. 46
c. 92
d. none of these
29. Which of the following is NOT an
advantage of asexual reproduction?
a. Simple and efficient
b. Produces large numbers of
offspring quickly
c. Increases genetic diversity
d. Requires one parent
33. Pollination occurs when pollen lands
on…
a. The style
b. The stigma
c. The filament
d. The anther
34. The process in which a single plant
produces many offspring genetically
identical to itself is…
a. Sexual reproduction
b. Agriculture
c. Dormancy
d. Vegetative reproduction
30. At the beginning of cell division, a
chromosome consists of two…
a. Centromeres
b. Centrioles
c. Chromatids
d. Spindles
Old Test Questions:
35. Which best defines a population? The
number of:
a. Biology students in high school
b. Organisms in a defined area
c. Types of organisms in a defined
area
d. Zebras in East Africa in 1982
36. Net productivity in an ecosystem is
defined as:
a. Energy lost by the daily activity of
producers in the community
b. Food energy available to
consumers
c. Growth of the community
d. Light energy converted by
producers to chemical energy
37. Which kind of energy can be directly
used by all living organisms?
a. Chemical energy
b. Electrical energy
c. Heat energy
d. Light energy
38. A farmer started colonies of rats and
mink hoping to feed rats to the mink and
skinned mink to the remaining rats,
thereby getting mink skins for nothing.
Is this possible?
a. Yes, because the system would
be in balance
b. Yes, because energy lost feeding
rats to mink would be regained
feeding mink to rats
c. No, because second-order
consumers cannot feed on each
other
d. No, because much of the food
energy is lost as heat
39. If you were marooned on an island with
only a limited amount of corn and
chickens to eat, and you expected to be
rescued within one month, your best
strategy would be to:
a. Eat the chickens, then the corn
b. Eat the corn then the chickens
c. Feed the corn to the chickens
and eat the chickens
d. Feed the corn to the chickens,
eat the chickens’ eggs then eat
the chickens
40. Most enzymes are:
a. Carbohydrates
b. Lipids
c. Proteins
d. Nuclei Acids
41. In which of the following cubes would
the movement of materials in and out be
the most efficient?
a. 16 cm3
b. 8 cm3
c. 2 cm3
d. 1 cm3
42. What is the source of genetic variability?
a. Crossing over (recombination)
b. Mutations
c. Segregation and random
recombination
d. All of the above
43. What is a nucleotide?
a. A nitrogen base, a phosphate
and a 5-carbon sugar linked
together.
b. The basic subunit of proteins
c. The genetic code unit (codon)
d. All of the above
44. The chromosomes shown in C at the
bottom of the page are often called…
a. analogs
b. chromatids
c. homologs
d. tetrads
45. The process shown at the bottom of the
page is called…
a. mitosis
b. meiosis
c. binary fission
d. sexual reproduction
Done? Excellent! All of the answers can be found on the school website. Please log-on, grade
yourself using a different color pen or pencil, and write your score below:
Now look at the questions that you missed. What were they about? List 3 – 6 of the topics that you
need to study the most below. All of the major concepts are listed on the first page.
I really need to study:
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Which questions do you not understand, even after seeing the correct answer? Write down the
number of a question or two that you would like Ms. Minson to go over in class.
# ______ and # ______