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Biology EOCT Practice Questions Part I. Milton High School . Glucose is a simple sugar that is broken down for the release of energy during cellular respiration. The formula for glucose is C 6 H 12 O 6 . To which class of organic macromolecules does glucose belong? Carbohydrates Proteins

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slide2

Glucose is a simple sugar that is broken down for the release of energy during cellular respiration. The formula for glucose is C6H12O6. To which class of organic macromolecules does glucose belong?

Carbohydrates

Proteins

Lipids

Nucleic acids

slide3

Glucose is a simple sugar that is broken down for the release of energy during cellular respiration. The formula for glucose is C6H12O6. To which class of organic macromolecules does glucose belong?

Carbohydrates

Proteins

Lipids

Nucleic acids

slide4

The function of the mitochondria in cells is to

Produce energy

Store water

Store genetic material

Make proteins

slide5

The function of the mitochondria in cells is to

Produce energy

Store water

Store genetic material

Make proteins

slide6

The diagram shows a basic food chain in an ecosystem. The box on the far right demonstrates energy flow out of the ecosystem.

Which of the following is the most likely cause of energy leaving the ecosystem?

Immigration

Photosynthesis

Respiration

Competition

E

N

E

R

G

Y

slide7

The diagram shows a basic food chain in an ecosystem. The box on the far right demonstrates energy flow out of the ecosystem.

Which of the following is the most likely cause of energy leaving the ecosystem?

Immigration

Photosynthesis

Cellular Respiration

Competition

E

N

E

R

G

Y

slide8

Which types of organic molecules serve as the building blocks of living things and form when amino acids are joined by a peptide bond?

Proteins

Fatty acids

Nucleic acids

Carbohydrates

slide9

Which types of organic molecules serve as the building blocks of living things and form when amino acids are joined by a peptide bond?

Proteins

Fatty acids

Nucleic acids

Carbohydrates

slide10

In pea plants, the allele for green pods is (G) is dominant over the allele for yellow pods (g). If a pea plant has yellow pods, what is its genotype?

GG

Gg

gg

Gy

slide11

In pea plants, the allele for green pods is (G) is dominant over the allele for yellow pods (g). If a pea plant has yellow pods, what is its genotype?

GG

Gg

gg

Gy

slide12

Ticks obtain nourishment by feeding on the blood of mammals such as mice and squirrels. Although ticks do not kill the animal upon which they feed, they can weaken the animal. What type of relationship do a tick and the animal upon which it feeds illustrate?

Mutualism

Commensalism

Competition

Parasitism

slide13

Ticks obtain nourishment by feeding on the blood of mammals such as mice and squirrels. Although ticks do not kill the animal upon which they feed, they can weaken the animal. What type of relationship do a tick and the animal upon which it feeds illustrate?

Mutualism

Commensalism

Competition

Parasitism

slide14

Bromeliads are epiphytes that live attached the high branches of trees. Living high up in the trees provide the bromeliads better access to water and sunlight. The tree receives no benefit from the relationship and is not harmed. What type of ecosystem interaction do the bromeliads and the trees exhibit?

Mutualism

Commensalism

Competition

Parasitism

slide15

Bromeliads are epiphytes that live attached the high branches of trees. Living high up in the trees provide the bromeliads better access to water and sunlight. The tree receives no benefit from the relationship and is not harmed. What type of ecosystem interaction do the bromeliads and the trees exhibit?

Mutualism

Commensalism

Competition

Parasitism

slide16

A lichen is formed by a relationship between a fungus and a green alga. The fungus anchors the lichen and protects the alga from direct sunlight and extreme temperature fluctuations. The green alga performs photosynthesis, providing food for itself and the fungus. What type of symbiotic relationship does a lichen illustrate?

Mutualism

Commensalism

Competition

Predation

slide17

A lichen is formed by a relationship between a fungus and a green alga. The fungus anchors the lichen and protects the alga from direct sunlight and extreme temperature fluctuations. The green alga performs photosynthesis, providing food for itself and the fungus. What type of symbiotic relationship does a lichen illustrate?

Mutualism

Commensalism

Competition

Predation

slide18

Which cell component may be present in a eukaryotic cell, but not in a prokaryotic cell?

Cell wall

Cell membrane

Nucleus

Cytoplasm

slide19

Which cell component may be present in a eukaryotic cell, but not in a prokaryotic cell?

Cell wall

Cell membrane

Nucleus

Cytoplasm

slide20

Lice, fleas, ticks, and bedbugs are organisms that frequently obtain nutrition by living in and feeding on the tissues or fluids of other organisms. What name is given to the organisms that provide nourishment to lice, fleas, ticks, and bedbugs?

Parasite

Host

Predator

Producer

slide21

Lice, fleas, ticks, and bedbugs are organisms that frequently obtain nutrition by living in and feeding on the tissues or fluids of other organisms. What name is given to the organisms that provide nourishment to lice, fleas, ticks, and bedbugs?

Parasite

Host

Predator

Producer

slide22

Which form of reproduction gives organisms that live in a changing environment the advantage of greater variation?

Binary fission

Asexual reproduction

Budding

Sexual reproduction

slide23

Which form of reproduction gives organisms that live in a changing environment the advantage of greater variation?

Binary fission

Asexual reproduction

Budding

Sexual reproduction

slide24

Which of the following are reactants for cellular respiration and products of photosynthesis?

Carbon dioxide and water

Glucose and oxygen

Glucose, water, and carbon dioxide

Glucose, oxygen, and water

slide25

Which of the following are reactants for cellular respiration and products of photosynthesis?

Carbon dioxide and water

Glucose and oxygen

Glucose, water, and carbon dioxide

Glucose, oxygen, and water

slide26

Mr. Bleier is examining cells with a microscope. The cells he is viewing appear to come from a multi-cellular organism that has a nucleus, a cell membrane, a cell wall, and chloroplasts. From which of the following groups of organisms was the sample taken?

Bacteria

Plants

Animals

Protists

slide27

Mr. Bleier is examining cells with a microscope. The cells he is viewing appear to come from a multi-cellular organism that has a nucleus, a cell membrane, a cell wall, and chloroplasts. From which of the following groups of organisms was the sample taken?

Bacteria

Plants

Animals

Protists

slide28

Which process allows organisms with favorable genes an increased chance to survive and reproduce?

Endosymbiosis

Genetic mutation

Parthenogenesis

Natural selection

slide29

Which process allows organisms with favorable genes an increased chance to survive and reproduce?

Endosymbiosis

Genetic mutation

Parthenogenesis

Natural selection

slide30

Which of the following is a result of genetic engineering?

Bt corn which is resistant to the pest called the corn borer

Using recombinant DNA to create goats whose milk contains an enzyme found in human breast milk

Genetically altered bacteria which eat oil and can help clean up oil spills

I only

I and II only

II and III only

I, II, and III

slide31

Which of the following is a result of genetic engineering?

Bt corn which is resistant to the pest called the corn borer

Using recombinant DNA to create goats whose milk contains an enzyme found in human breast milk

Genetically altered bacteria which eat oil and can help clean up oil spills

I only

I and II only

II and III only

I, II, and III

slide32

Ben is mapping the organization of the environment while studying for an exam. Starting with the simplest level, in which order should Ben put the levels of the environment?

Biosphere, ecosystem, community, population, organism

Organism, community, population, ecosystem, biosphere

Organism, population, community, ecosystem, biosphere

Population, organism, community, biosphere, ecosystem

slide33

Ben is mapping the organization of the environment while studying for an exam. Starting with the simplest level, in which order should Ben put the levels of the environment?

Biosphere, ecosystem, community, population, organism

Organism, community, population, ecosystem, biosphere

Organism, population, community, ecosystem, biosphere

Population, organism, community, biosphere, ecosystem

slide34

Only 10% of the energy at any trophic level is available to the next trophic level. Based on this, if a population of wildabeast needs 5,000 J, then how much energy must be produced by the plants they feed on?

5,000 J

500 J

5,500 J

50,000 J

slide35

Only 10% of the energy at any trophic level is available to the next trophic level. Based on this, if a population of wildabeast needs 5,000 J, then how much energy must be produced by the plants they feed on?

5,000 J

500 J

5,500 J

50,000 J

slide36

Which of the following effects cannot be attributed to acid rain?

Damage to trees and a decline of forest communities

An increase in carbon dioxide in Earth’s atmosphere

Damage to historic buildings and monuments

Death of aquatic organisms in lakes and streams

slide37

Which of the following effects cannot be attributed to acid rain?

Damage to trees and a decline of forest communities

An increase in carbon dioxide in Earth’s atmosphere

Damage to historic buildings and monuments

Death of aquatic organisms in lakes and streams

slide38

After fires destroyed 793,000 acres of aspen and pine forest in Yellowstone National Park in the summer of 1988, biologists were able to study the long-term effects of fire on an ecosystem. The biologists found that the soil after fire was more fertile which allowed small plants and new pine trees to re-establish quickly in the park. What ecological process were the biologists observing?

Biodiversity

Equilibrium

Succession

Food web energy flow

slide39

After fires destroyed 793,000 acres of aspen and pine forest in Yellowstone National Park in the summer of 1988, biologists were able to study the long-term effects of fire on an ecosystem. The biologists found that the soil after fire was more fertile which allowed small plants and new pine trees to re-establish quickly in the park. What ecological process were the biologists observing?

Biodiversity

Equilibrium

Succession

Food web energy flow

slide40

This drawing shows a food web for an ecosystem.

Which of the following organisms is the primary producer for this food web?

Polar bear

Arctic char

Copepod

Phytoplankton

slide41

This drawing shows a food web for an ecosystem.

Which of the following organisms is the primary producer for this food web?

Polar bear

Arctic char

Copepod

Phytoplankton

slide42

Which of the following is an advantage of asexual reproduction in an environment that undergoes very few changes?

It requires two parents

It increases genetic diversity

It results in offspring that are genetically identical

It does not involve chromosomes

slide43

Which of the following is an advantage of asexual reproduction in an environment that undergoes very few changes?

It requires two parents

It increases genetic diversity

It results in offspring that are genetically identical

It does not involve chromosomes

slide44

How might the overuse of antibiotics lead to resistant strains of bacteria?

Antibiotics change the structure of bacteria, making them resistant.

Antibiotics introduce too many bacteria to a population at one time.

Antibiotics provide breeding ground in which bacteria flourish.

Antibiotics shift natural selection to favor existing resistant bacteria.

slide45

How might the overuse of antibiotics lead to resistant strains of bacteria?

Antibiotics change the structure of bacteria, making them resistant.

Antibiotics introduce too many bacteria to a population at one time.

Antibiotics provide breeding ground in which bacteria flourish.

Antibiotics shift natural selection to favor existing resistant bacteria.

slide46

Which of these is a common adaptation that helps desert plants conserve water?

Waxy coverings on leaves and stems

Large broad leaves

Large stomata which remain open during the day

Very deep root systems

slide47

Which of these is a common adaptation that helps desert plants conserve water?

Waxy coverings (cuticle) on leaves and stems

Large broad leaves

Large stomata which remain open during the day

Very deep root systems

slide48

Which of these is a biotic factor in the Amazon River ecosystem?

Temperature

Sand

Fish

nitrogen

slide49

Which of these is a biotic factor in the Amazon River ecosystem?

Temperature

Sand

Fish

nitrogen

slide50

After the volcanic eruption of Mount St. Helens, a climax community is established. What is the nature of this community?

It is the first community of plants to establish itself in the region

It is the stable community formed at the end of ecological succession

It is the community of organisms destroyed by the lava

It is a temporary community formed as the ecosystem recovers from the damage

slide51

After the volcanic eruption of Mount St. Helens, a climax community is established. What is the nature of this community?

It is the first community of plants to establish itself in the region

It is the stable community formed at the end of ecological succession

It is the community of organisms destroyed by the lava

It is a temporary community formed as the ecosystem recovers from the damage

slide52

Bacteria and fungi feed on a dead log. These organisms act as decomposers by breaking down the matter in the log and returning nutrients to the ecosystem. Which of the following describes the role of the bacteria and fungi in the environment?

Producer

Habitat

Niche

Biome

slide53

Bacteria and fungi feed on a dead log. These organisms act as decomposers by breaking down the matter in the log and returning nutrients to the ecosystem. Which of the following describes the role of the bacteria and fungi in the environment?

Producer

Habitat

Niche

Biome

slide54

A cladogram shows

Which kingdom is the most diverse

How to name species

Change over time

Evolutionary relationships

slide55

A cladogram shows

Which kingdom is the most diverse

How to name species

Change over time

Evolutionary relationships

slide56

During a water quality lab Sam tested a sample of water for nitrates by dissolving a testing powder in the water along with the required drops of sulfuric acid. Sam capped the test tube and vigorously mixed the solutions together by shaking. What is the solvent in this solution?

Sulfuric acid

The testing powder

The shaking of the test tube

The water sample

slide57

During a water quality lab Sam tested a sample of water for nitrates by dissolving a testing powder in the water along with the required drops of sulfuric acid. Sam capped the test tube and vigorously mixed the solutions together by shaking. What is the solvent in this solution?

Sulfuric acid

The testing powder

The shaking of the test tube

The water sample