EOCT

Review

Which of the following descriptions is most likely a

eukaryotic cell?A. The cell is simple with no nucleus.

B. The cell has genetic material freely floating in the cytoplasm.

C. The cell is a bacterial cell.

D. The cell is quite complex and contains a nucleus.

Which of the following descriptions is most likely a

eukaryotic cell?A. The cell is simple with no nucleus.

B. The cell has genetic material freely floating in the cytoplasm.

C. The cell is a bacterial cell.

D. The cell is quite complex and contains a nucleus.

Which organelles provide cells with energy?

A. mitochondria and chloroplasts

B. rough and smooth endoplasmic reticulum

C. Golgi body and ribosomes

D. ribosomes and nucleic acids

Which organelles provide cells with energy?

A. mitochondria and chloroplasts

B. rough and smooth endoplasmic reticulum

C. Golgi body and ribosomes

D. ribosomes and nucleic acids

A student looking through a light microscope saw this cell in

cytokinesis: 

The cell is most likely from a

A. a plant.B. a virus.C. an animal.D. a bacterium.

A student looking through a light microscope saw this cell in

cytokinesis: 

The cell is most likely from a

A. a plant.B. a virus.C. an animal.D. a bacterium.

When there is a lower concentration of water outside of a plant cell

compared to inside the plant cell, theplant will tend to −

A. grow toward the sun.B. lose water and wilt.C. gain water and become rigid.D. increase its rate of photosynthesis.

When there is a lower concentration of water outside of a plant cell

compared to inside the plant cell, theplant will tend to −

A. grow toward the sun.B. lose water and wilt.C. gain water and become rigid.D. increase its rate of photosynthesis.

In 1665 Robert Hooke observed a thin slice of cork

under a microscope and presented a drawing similar

to the one shown below.

Hooke called these structures A. chloroplasts B. nuclei C. stomata D. cells

In 1665 Robert Hooke observed a thin slice of

cork under a microscope and presented a drawing similar to the one shown

below. Hooke called these structures A. chloroplasts B. nuclei C. stomata D. cells

Overheating an enzyme changes its shape which results in the enzymes loss of

A. net electrical charge.

B. ability to catalyze a reaction.

C. storage of a large amount of chemical energy.

D. storage of inherited information.

Overheating an enzyme changes its shape which results in the enzymes loss of

A. net electrical charge.

B. ability to catalyze a reaction.

C. storage of a large amount of chemical energy.

D. storage of inherited information.

Which of the following relationships between

macromolecules and their function is NOT correct?

A. carbohydrates : energy sourceB. lipids : speeding up chemical

reactionsC. proteins : structural supportD. nucleic acids : transmitting genetic

information

Which of the following relationships between

macromolecules and their function is NOT correct?

A. carbohydrates : energy sourceB. lipids : speeding up chemical

reactionsC. proteins : structural supportD. nucleic acids : transmitting genetic

information

Which chemical reaction represents photosynthesis?

A. 6CO2 + C6H12O6 → 6H2O + 6O2

B. C6H12O6 + 6H2O → 6CO2 + 6H2O

C. C6H12O6 + 6O2 → 6CO2 + 6H2O

D. 6C02 + 6H2O → C6H12O6 + 6O2

Which chemical reaction represents photosynthesis?

A. 6CO2 + C6H12O6 → 6H2O + 6O2

B. C6H12O6 + 6H2O → 6CO2 + 6H2O

C. C6H12O6 + 6O2 → 6CO2 + 6H2O

D. 6C02 + 6H2O → C6H12O6 + 6O2

The energy in the food produced by autotrophs or

taken into the bodies of heterotrophs must be changedinto a form that cells can use.

The energy−transferring molecule used by cells is −

A. DNA.B. RNA.C. ATP.D. CO2.

The energy in the food produced by autotrophs or

taken into the bodies of heterotrophs must be changedinto a form that cells can use.

The energy−transferring molecule used by cells is −

A. DNA.B. RNA.C. ATP.D. CO2.

A student was studying the responses of cells to solutions of varying salt concentrations. Which solution

below would cause no change in cell size?

A

B

C

D

A student was studying the responses of cells to solutions of varying salt concentrations. Which solution

below would cause no change in cell size?

A

B

C

D

The figure below displays a diagram of a eukaryotic cell. Cellular respiration

occurs in which of the structures?

A. 1B. 2C. 3D. 4

The figure below displays a diagram of a eukaryotic cell. Cellular respiration

occurs in which of the structures?

A. 1B. 2C. 3D. 4

Cellular respiration is carried out by which of the following?

A. All living organisms

B. Animals but not plants

C. Plants but not animals

D. Heterotrophs but not autotrophs

Cellular respiration is carried out by which of the following?

A. All living organisms

B. Animals but not plants

C. Plants but not animals

D. Heterotrophs but not autotrophs

Which of these is most responsible for carrying coded information from the nucleus to the

ribosome?

A. tRNA

B. DNA

C. mRNA

D. ATP

Which of these is most responsible for carrying coded information from the nucleus to the

ribosome?

A. tRNA

B. DNA

C. mRNA

D. ATP

The Diagram below shows the phases of the cell cycle. Which of the following phases is the first

step in mitosis?

A.Anaphase

B.Metaphase

C.Prophase

D.Telophase

The Diagram below shows the phases of the cell cycle. Which of the following phases is the first

step in mitosis?

A.Anaphase

B.Metaphase

C.Prophase

D.Telophase

Which is the correct sequence for the flow of information from the nucleus to

the ribosome during the process of protein synthesis?

A. Protein → DNA → RNA

B. RNA → DNA → protein

C. DNA RNA → protein

D. Protein → RNA → DNA

Which is the correct sequence for the flow of information from the nucleus to

the ribosome during the process of protein synthesis?

A. Protein → DNA → RNA

B. RNA → DNA → protein

C. DNA → RNA → protein

D. Protein → RNA → DNA

In pea plants, yellow pea color (Y) is completely dominant to green pea color

(y). A plant that has yellow peas is heterozygous for pea color. Which alleles

will be carried by the gametes it produces?

A. Some gametes will have Y and some gametes will have y

B. Each gamete will have Y onlyC. Each gamete will have y onlyD. Each gamete will have Yy

In pea plants, yellow pea color (Y) is completely dominant to green pea color

(y). A plant that has yellow peas is heterozygous for pea color. Which alleles

will be carried by the gametes it produces?

A. Some gametes will have Y and some gametes will have y

B. Each gamete will have Y onlyC. Each gamete will have y onlyD. Each gamete will have Yy

In a genetics laboratory, two heterozygous tall plants are

crossed. If tall is dominant over short, what are the expected

phenotypic results?A. 100% tallB. 75% tall, 25% shortC. 50% tall, 50% shortD. 25%tall, 75% short

In a genetics laboratory, two heterozygous tall plants are

crossed. If tall is dominant over short, what are the expected

phenotypic results?A. 100% tallB. 75% tall, 25% shortC. 50% tall, 50% shortD. 25%tall, 75% short

Some traits are determined by more than two alleles. If aabb

is crossed with AABB, what would be the genotype of all

the offspring?A. AaBbB. AABBC. AabbD. aaAAbbBB

Some traits are determined by more than two alleles. If aabb

is crossed with AABB, what would be the genotype of all

the offspring?A. AaBbB. AABBC. AabbD. aaAAbbBB

The presence of a recessive allele for sickle cell anemia makes a person

resistant to malaria. If two heterozygous parents have a child, what are the chances of that child being resistant to malaria but not having the homozygous recessive

condition?A. 25%B. 50%C. 75%D. 100%

The presence of a recessive allele for sickle cell anemia makes a person

resistant to malaria. If two heterozygous parents have a child, what are the chances of that child being resistant to malaria but not having the homozygous recessive

condition?A. 25%B. 50%C. 75%D. 100%

The diagram below shows a generalized cycle in sexually reproducing animals. What does Process A represent in this

cycle?

A. Fertilization

B. Mitosis

C. Osmosis

D. Replication

The diagram below shows a generalized cycle in sexually reproducing animals. What does Process A represent in this

cycle?

A. Fertilization

B. Mitosis

C. Osmosis

D. Replication

The diverse organisms shown in the diagram below belong to the same

Kingdom. To which Kingdom do these organisms belong?

A. Animalia

B. Fungi

C. Plantae

D. Protista

The diverse organisms shown in the diagram below belong to the same

Kingdom. To which Kingdom do these organisms belong?

A. Animalia

B. Fungi

C. Plantae

D. Protista

How are organisms in the Kingdom Protista different from Kingdom Animalia?

A. Some are multicellular

B. Some are prokaryotes

C. Some have cell walls

D. Some have tissues

How are organisms in the Kingdom Protista different from Kingdom Animalia?

A. Some are multicellular

B. Some are prokaryotes

C. Some have cell walls

D. Some have tissues

The state of California has several large cities and very productive croplands that

divert and use large amounts of water from rivers. What is one damaging effect

of this use of the rivers? Water?

A. Increased amounts of solid waste pollution in oceans

B. Decreased amounts of fresh water in marshes and estuaries

C. Changes in local rainfall amountsD. Changes in upstream water tables

The state of California has several large cities and very productive croplands that

divert and use large amounts of water from rivers. What is one damaging effect

of this use of the rivers? Water?

A. Increased amounts of solid waste pollution in oceans

B. Decreased amounts of fresh water in marshes and estuaries

C. Changes in local rainfall amountsD. Changes in upstream water tables

A man treated his home with a pesticide that kills roaches. The first application of the pesticide killed 92% of the roaches. Two months later he applied the

pesticide tohis home again, but the second application killed only 65% of the roaches. What would best explain the decrease in the effectiveness of the

pesticide?

A. The pesticide is effective only against mature roaches.B. Once roaches learned how to fight the pesticide, they

taught others.C. The surviving roaches were naturally resistant to the

pesticide, an that resistance was inherited by their offspring.

D. The pesticide caused some of the roaches digestive systems to mutate and metabolize the pesticide.

A man treated his home with a pesticide that kills roaches. The first application of the pesticide killed 92% of the roaches. Two months later he applied the

pesticide tohis home again, but the second application killed only 65% of the roaches. What would best explain the decrease in the effectiveness of the

pesticide?

A. The pesticide is effective only against mature roaches.B. Once roaches learned how to fight the pesticide, they

taught others.C. The surviving roaches were naturally resistant to the

pesticide, an that resistance was inherited by their offspring.

D. The pesticide caused some of the roaches digestive systems to mutate and metabolize the pesticide.

According to the information below, which of these is responsible for the decrease in the black-footed ferret

population?

A.Competition with prairie dogs for resourcesB.Reduced numbers of prairie dogsC.Activity of research institutesD.Development of managed wildlife areas

According to the information below, which of these is responsible for the decrease in the black-footed ferret

population?

A.Competition with prairie dogs for resourcesB.Reduced numbers of prairie dogsC.Activity of research institutesD.Development of managed wildlife areas

Cacti grow slowly compared to most other plants. The fact that cacti keep their stomata closed for much of the day can help

explain their growth characteristic. Which of these best explains the advantage of keeping stomata closed during the day?

A. It limits water loss through transpiration.B. It conserves oxygen produced in

photosynthesis.C. It recycles carbon dioxide within plant

systems.D. It protects plant tissues from predators.

Cacti grow slowly compared to most other plants. The fact that cacti keep their stomata closed for much of the day can help

explain their growth characteristic. Which of these best explains the advantage of keeping stomata closed during the day?

A. It limits water loss through transpiration.B. It conserves oxygen produced in

photosynthesis.C. It recycles carbon dioxide within plant

systems.D. It protects plant tissues from predators.

Which of the following pairs of animals are most likely to have a

predator/prey relationship?

A. Dog and tapeworm

B. Buffalo and tickbird

C. Spider and fly

D. Whale and barnacle

Which of the following pairs of animals are most likely to have a

predator/prey relationship?

A. Dog and tapeworm

B. Buffalo and tickbird

C. Spider and fly

D. Whale and barnacle

Greenhouse emissions from cars may contribute to global warming. Cars with better gas mileage emit smaller amounts of greenhouse gases.

According to the data on Table 1, which car would emit the least amount of greenhouse gases if most of the driving were done on the highway?

A. JB. KC. LD. M

Greenhouse emissions from cars may contribute to global warming. Cars with better gas mileage emit smaller amounts of greenhouse gases.

According to the data on Table 1, which car would emit the least amount of greenhouse gases if most of the driving were done on the highway?

A. JB. KC. LD. M

Which of these is the best example of a mutualistic relationship in an aquatic

environment?

A. Some fish can survive repeated infections by harmful bacteria.B. Some fish have bacteria living in their digestive tract that help the fish

digest food.C. Some bacteria are present in aquatic food chains in which fish are

secondary consumers.D. Some bacteria are aquatic decomposers that recycle nutrients useful to

fish.

Which of these is the best example of a mutualistic relationship in an aquatic

environment?

A. Some fish can survive repeated infections by harmful bacteria.B. Some fish have bacteria living in their digestive tract that help the fish

digest food.C. Some bacteria are present in aquatic food chains in which fish are

secondary consumers.D. Some bacteria are aquatic decomposers that recycle nutrients useful to

fish.

The diagram shows several phases of the nitrogen cycle. Which of the

following describes the most likely effect of removing some plants from

the area by using chemical herbicides?

A. The rate of erosion of rocks on the ground would be slowed.B. The flow of necessary nutrients would be disrupted.C. The ability of plants to complete photosynthesis would be increased.D. The infiltration of water into the ground would be halted.

The diagram shows several phases of the nitrogen cycle. Which of the

following describes the most likely effect of removing some plants from

the area by using chemical herbicides?

A. The rate of erosion of rocks on the ground would be slowed.B. The flow of necessary nutrients would be disrupted.C. The ability of plants to complete photosynthesis would be increased.D. The infiltration of water into the ground would be halted.

Flooding causes some of the soil erosion in the Florida Everglades. A cross section of ecosystems in the Florida

Everglades is shown below. Which of the following ecosystems experiences the LEAST amount of flooding and soil erosion?

A. Marine/estuaryB. Coastal prairieC. CypressD. Hammock

Flooding causes some of the soil erosion in the Florida Everglades. A cross section of ecosystems in the Florida

Everglades is shown below. Which of the following ecosystems experiences the LEAST amount of flooding and soil erosion?

A. Marine/estuaryB. Coastal prairieC. CypressD. Hammock

Which of these food webs is based on the relationships described below?

A. C.B. D.

Which of these food webs is based on the relationships described below?

A. C.B. D.

In the Indian River Lagoon ecosystem, many organisms complete with one another for food sources. Which

organism in the food web competes with egrets for food?

A.Clamworm

B.Crab

C.Flounder

D.Heron

In the Indian River Lagoon ecosystem, many organisms complete with one another for food sources. Which

organism in the food web competes with egrets for food?

A.Clamworm

B.Crab

C.Flounder

D.Heron

Which of the following has the largest population in the Indian River Lagoon

ecosysem?

A.Crab

B. Egret

C. Flounder

D.Phytoplankton

Which of the following has the largest population in the Indian River Lagoon

ecosysem?

A.Crab

B. Egret

C. Flounder

D.Phytoplankton

A student researching bears found the chart below in a textbook. The chart show the classifications of several types of bears.

Which of the following conclusions is best supported by the data given in this chart?

A. Modern bears evolved from species that are now extinct.B. The short-faced bear was the ancestor of the Asiatic black bear.C. Present day bear species are more closely related than their ancestors were.D. Natural selection favored the brown bear over the American black bear.

A student researching bears found the chart below in a textbook. The chart show the classifications of several types of bears.

Which of the following conclusions is best supported by the data given in this chart?

A. Modern bears evolved from species that are now extinct.B. The short-faced bear was the ancestor of the Asiatic black bear.C. Present day bear species are more closely related than their ancestors were.D. Natural selection favored the brown bear over the American black bear.

Viruses contain which substances?

A. Genetic material and a protein coat

B. A nucleus, genetic material, and a protein coat

C. A nucleus, genetic material, a protein coat, and ribosomes

D. A nucleus, genetic material, a protein coat, ribosomes, and a plasma membrane

Viruses contain which substances?

A. Genetic material and a protein coat

B. A nucleus, genetic material, and a protein coat

C. A nucleus, genetic material, a protein coat, and ribosomes

D. A nucleus, genetic material, a protein coat, ribosomes, and a plasma membrane

Over many generations, unrelated or distanly related species may come to resemble each other due to -

A. Similar environmental factors.

B. Similar ancestry.

C. Homologous structural adaptations.

D. Competition with each other.

Over many generations, unrelated or distanly related species may come to resemble each other due to -

A. Similar environmental factors.

B. Similar ancestry.

C. Homologous structural adaptations.

D. Competition with each other.

Which sets of structures are homologous?

A. A butterfly’s wing and a bat’s wing.

B. A moth’s eyes and a cow’s eyes

C. A beetle’s leg and a horse’s leg.

D. A whale’s flipper and a bird’s wing

Which sets of structures are homologous?

A. A butterfly’s wing and a bat’s wing.

B. A moth’s eyes and a cow’s eyes

C. A beetle’s leg and a horse’s leg.

D. A whale’s flipper and a bird’s wing

A change in a population can occur when organisms with favorable

variations for a particular environment survive and pass these variations on to the next generation. This is known as -

A. Natural selection.B. Punctuated selection.C. Variation and adaptation.D. Acquired characteristics.

A change in a population can occur when organisms with favorable

variations for a particular environment survive and pass these variations on to the next generation. This is known as -

A. Natural selection.B. Punctuated selection.C. Variation and adaptation.D. Acquired characteristics.

According to the theory of natural selection, a species that lacks the variations necessary to

adapt to a changing environment will most likely -

A. Become dormant.

B. Mutate.

C. Become extinct.

D. Fossilize.

According to the theory of natural selection, a species that lacks the variations necessary to

adapt to a changing environment will most likely -

A. Become dormant.

B. Mutate.

C. Become extinct.

D. Fossilize.

THE END