Download 2013 Biology 4th 9 Week Exam Answer Section

2013 Biology 4th 9 Week Exam
Multiple Choice
Identify the choice that best completes the statement or answers the question.
1. Proteins that speed up chemical reactions in living cells by lowering the activation energy are called
A) nucleic acids
B) amino acids
C) carbohydrates
D) enzymes
2. Which of the following is true of the Calvin Cycle?
A) It takes place in the stroma and produces oxygen.
B) It takes place in the thylakoids and produces oxygen.
C) It takes place in the stroma and produces glucose.
D) It takes place in the thylakoids and produces glucose.
3. During transcription, what base pairs with adenine?
A) uracil
B) guanine
C) cytosine
D) thymine
4. Organisms, such as plants, that make their own food are called
A) thylakoids.
B) autotrophs.
C) heterotrophs.
D) pigments.
5. Which type of bond is most common in an organic compound?
A) all of the above are equally common
C) Ionic
B) Covalent
D) Hydrogen
6. Which of the following represents the phases of mitosis in their proper sequence?
A) interphase, prophase, metaphase, telophase
B) prophase, metaphase, anaphase, telophase
C) telophase, anaphase, metaphase, prophase
D) prophase, anaphase, metaphase, telophase
7. The competitive exclusion principle states that
A) No two species can share the same trophic level
B) No two species can share the same niche
C) No two species can share the same habitat
D) all of the above
8. In goats, brown fur (B) is dominant while beige fur (b) is recessive. If a male goat is heterozygous and a
female goat is homozygous recessive, what percentage of their offspring will have beige fur?
A) 25%
B) 50%
C) 75%
D) 100%
9. The green pigment that captures the energy of sunlight used for photosynthesis is
A) chlorophyll
B) anthocyanin
C) glucose
D) chloroplasts
10. In the food chain below, what would be the trophic level of the snake?
grass  cricket  mouse snake  fungus
A) secondary consumer
C) tertiary consumer
B) quaternary consumer
D) primary consumer
11. Which of the following is the correct sequence of events in cellular respiration?
A) Krebs cycle  electron transport  glycolysis
B) Krebs cycle  glycolysis  electron transport
C) glycolysis  Krebs cycle  electron transport
D) glycolysis  fermentation  Krebs cycle
12. Which of the following would be found on a leaf to help prevent excessive transpiration?
A) Carbohydrate
B) Lipid
C) Protein
D) Nucleic Acid
13. One strand of DNA is made up of the bases CATAGCGTA. What is the base sequence of the complementary
strand of DNA?
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A) GTATAUGCA
C) GTATCGCAT
B) CATAGCGTA
D) GUAUCGCAU
Which of the following is the main reason why viruses are not considered living?
A) Viruses are not made of cells.
C) Viruses do not evolve.
B) Viruses are too small to be alive.
D) Viruses do not contain DNA.
All organic compounds contain
A) oxygen
B) carbon
C) cells
D) nitrogen
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
A) telophase
B) anaphase
C) metaphase
D) prophase
Which taxonomic group only includes organsims that can mate and produce fertile offspring?
A) class
B) genus
C) kingdom
D) species
Atoms of the same element that differ in mass because of the number of neutrons are called _____.
A) isotopes
B) ions
C) compounds
D) polar
The structures in a eukaryote cell that provide the cell with energy through aerobic cellular respiration are the
A) centrioles
B) mitochondria
C) chloroplasts
D) ribosomes
Which of the following structures is a selectively permeable phospholipid bilayer found in all cells?
A) cell membrane
B) cell wall
C) ribosome
D) chloroplast
The diffusion of water from areas of higher concentration to lower concentration across a semipermeable
memberane is called ___.
A) facilitated transport
C) osmosis
B) passive diffusion
D) active transport
Of the following, which group is made up of organisms that are most genetically different?
A) order
B) phylum
C) class
D) genus
Which of the following would be a cause of primary succession?
A) a glacier receding B) a mud slide
C) a flood
D) a forest fire
Which is a major difference between plant cells and animal cells?
A) plant cells have lysosomes and animal cells do not
B) animal cells have a large vacuole and plant cells do not
C) plant cells have cell walls and animal cells do not
D) animal cells have a nucleus and plant cells do not
Which of the following is the correct sequence of taxonomic groups from broadest to most specific?
A) Kingdom  Domain  Phylum  Class  Order  Family  Species  Genus
B) Domain  Phylum  Class  Kingdom  Family  Order  Genus  Species
C) Species  Genus  Order  Family  Class  Phylum  Kingdom  Domain
D) Domain  Kingdom  Phylum  Class  Order  Family  Genus  Species
What molecule is responsible for copying the coded instructions for making proteins and taking the
information to the ribosome?
A) tRNA
B) rRNA
C) mRNA
D) DNA
Which type of organic compound stores and transmits genetic information?
A) Protein
B) Nucleic Acid
C) Lipid
D) Carbohydrate
Which of the following will convert nitrogen gas found in the atmosphere into nitrates and ammonia found in
the soil?
A) Decomposition
B) Combustion
C) Denitrification
D) Nitrogen fixation
What is the correct equation for photosynthesis?
A) 6CO2 + 6H2O  6O2 + C6H12O6 + Energy
B) 6O2 + C6H12O6  6CO2 + 6H2O + Energy
C) 6O2 + C6H12O6 + Energy  6CO2 + 6H2O
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D) 6CO2 + 6H2O + Energy  6O2 + C6H12O6
In the jungles of South America live a thorn tree called an acacia. A species of ant eats secretions of the
acacia, drink its sap, and raise its young in the hollow thorns. The ants also keep competing vines from
growing near the acacia tree and they help repel any insects that would damage the acacia. Both species
benefit from the relationship. Which type of relationship would this be?
A) predation
B) parasitism
C) commensalism
D) mutualism
Which of the following is the correct sequence of the levels of organization of a complex multicellular
organism?
A) atom  compound  cell  tissue  organelle  organ  organ system
B) cell  atom  compound  tissue  organelle  organ  organ system
C) organ system  organ  organelle  cell  tissue  atom  compound
D) atom  compound  organelle  cell  tissue  organ  organ system
Which of the following statements about population growth is correct?
A) Exponential growth occurs when resources are limited.
B) Logistic growth only occurs under ideal conditions.
C) A logistic growth rate will show the carrying capacity of the population.
D) Most natural populations experience indefinite periods of exponential growth.
What cell structure do all eukaryotes have in common?
A) nucleus
B) chloroplasts
C) cell wall
D) RNA
What molecule released during cellular respiration provides the energy needed for cellular processes such as
active transport?
A) RNA
B) ATP
C) CO2
D) H2O
Which of the following is a major concept of evolution by natural selection?
A) Adaptations can be acquired.
B) All of the offpring of an organism survive.
C) If a mutation occurs in a body cell, it can be passed on to the next generation.
D) Individuals with variations suited to their habitats survive and reproduce.
DNA replication results in two DNA molecules,
A) one with two new strands and the other
C) each with one new strand and one original
with two original strands.
strand.
B) each with two new strands.
D) each with two original strands.
Which organelle is the site of photosynthesis in plant cells?
A) golgi apparatus
B) mitochondria
C) nucleus
D) chloroplast
Which process produces the most ATP?
A) glycolysis
C) fermentation
B) Krebs cycle
D) electron transport chain
Which cell structure is the site of translation during protein synthesis?
A) Golgi apparatus
C) Rough Endoplasmic Reticulum
B) Nucleus
D) Ribosomes
Which of the following are all prokaryotes?
A) Animals, Plants, Fungus, and Protists
D) Animals and Plants only
B) Bacteria and Protists only
E) Fungus and Protists only
C) Bacteria only
If a cell is placed into this type of solution, water will move into the cell and the cell may burst.
A) isotonic
B) osmotic
C) hypotonic
D) hypertonic
Which type of molecule is produced during transcription?
A) rRNA
B) mRNA
C) DNA
D) tRNA
In water, cohesion, adhesion, and hydrogen bonds all occur because ___.
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A) water is the universal solvent
C) water molecules have surface tension
B) water molecules are polar
D) water molecules have a high boiling point
Unlike mitosis, meiosis results in the formation of
A) four genetically different cells.
C) two genetically identical cells.
B) two genetically different cells.
D) four genetically identical cells.
These are molecules that act as biological catalysts because they speed up chemical reactions by lowering the
activation energy.
A) phospholipids
B) transport proteins C) glucose
D) enzymes
Which of the following is the correct sequence of the levels of organization of the biosphere from most
specific to broadest?
A) biome  ecosystem  community  population  species
B) community  population  species  ecosystem  biome
C) population  species  community  biome  ecosystem
D) species  population  community  ecosystem  biome
The scientific name for modern humans is Homo sapiens. Which of these statements provides a correct
classification for modern humans?
A) they belong in the order Homo and the species sapiens
B) they belong to the genus Homo and the species sapiens
C) they belong to the phylum Homo and the genus sapiens
D) they belong to the species Homo and the genus sapiens
Which of the following does not release carbon dioxide into the atmosphere?
A) decomposition
C) photosynthesis
B) cellular respiration
D) combustion
Colorblindness is more common in males than in females because
A) fathers pass the allele for colorblindness to their sons only.
B) the allele for colorblindness is recessive and located on the X chromosome.
C) males who are colorblind have two copies of the allele for colorblindness.
D) the allele for colorblindness is located on the Y chromosome.
In humans, a male has which sex chromosomes
A) two Y chromosomes.
C) two X chromosomes.
B) one X and one Y.
D) one X only.
2013 Biology 4th 9 Week Exam
Answer Section
MULTIPLE CHOICE
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DIF: L2
NAT: B.6 | C.1.a | C.1.b
DIF: L1
NAT: C.5.a | C.5.b | C.5.d | C.5.f
DIF: L2
NAT: II | C.2.b
DIF: L2
NAT: C.1.a | C.1.b | C.5.a
DIF: L2
NAT: II | C.2.b
DIF: L2
NAT: C.1.a | C.1.b | C.5.a
DIF: Below average/Average
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DIF: L2
NAT: C.1.f
DIF: L2
DIF: L1
NAT: C.1.d
NAT: C.2.a | C.2.c