NCC BIO101 Exam 1 Latest 2021

BIO101 Intro to College Biology I

Exam 1

Question 1Which level of biological organization is composed of several tissues?

organ system

molecules

cell

organ

organism

Question 2In water, a weak hydrogen bond occurs between hydrogen in one molecule and

a hydrogen atom in a different molecule.

a hydrogen atom in the same molecule.

either hydrogen and oxygen atoms of different molecules.

an oxygen atom in a different molecule.

an oxygen atom in the same molecule.

Question 3An ion is an atom that

exists in a gaseous state.

shares neutrons with other atoms.

does not have a net charge.

shares electrons with other atoms.

has a net charge.

Question 4Determine which of the following components are required for a molecule to be classified as organic.

presence of oxygen, hydrogen, four electrons in the outer orbital, and the attachment of a functional group

presence of carbon, hydrogen, four protons in the outer orbital, and the attachment of a functional group

presence of carbon, hydrogen, four electrons in the outer orbital, and the attachment of a functional group

presence of carbon, hydrogen, three electrons in the outer orbital, and the attachment of a functional group

presence of sodium, chlorine, four electrons in the outer orbital, and the attachment of a functional group

Question 5Technology is the ________.

study of the interactions between living organisms and their environment.

application of common knowledge for a practical purpose.

study of living organisms.

application of laws to benefit society.

application of scientific knowledge for a practical purpose.

Question 6When comparing energy and chemicals in an ecosystem,

neither cycle nor flow but both are simply present.

chemicals cycle over and over again but energy flows through once.

both chemicals and energy flow through once.

both chemicals and energy cycle over and over again.

energy cycles over and over again but chemicals flow through once.

Question 7Which sequence correctly lists the different levels of biological organization, from the smallest and simplest to the largest and most complex?

cells-tissues-organ systems-organs-organism

tissues-cells-organs-organ systems-organism

tissues-organs-organ systems-organism-cells

cells-organs-tissues-organ systems-organism

cells-tissues-organs-organ systems-organism

Question 8A genetic mutation can cause a change in the sequence of the 20 amino acids used to build proteins. Such a change is a change to the protein’s

secondary structure only.

tertiary structure only.

quaternary structure only.

primary structure only.

primary structure, but this will likely alter higher levels of structure as well.

Question 9The isotope shown below has

6 neutrons.

8 protons.

8 neutrons.

14 electrons.

8 electrons.

Question 10Which organelle primarily functions to package or regulate the production of H 2O 2?

peroxisome

endoplasmic reticulum

vacuole

lysosome

Golgi apparatus

Question 11Hydrogen bonding produces which of the following properties of water?

Water can be more dense as ice than as liquid water.

Water is less dense as ice than as liquid water.

Water boils at a lower temperature than expected.

Water releases heat with a large change in temperature.

Water absorbs heat with a large change in temperature.

Question 12Which statement is false regarding science?

Science helps us to understand the natural world.

scientific conclusions are permanent and never subject to change or refinement.

Information is gathered by scientific methods.

Science strives to be objective rather than subjective.

Information is gained by observing and testing.

Question 13Which statement regarding the scientific method is false?

The control and experimental group are identical except for one variable.

Experiments need to be repeatable.

Inductive reasoning is used to form a hypothesis.

Observations are used to form a hypothesis.

Original hypotheses are formed after an experiment.

Question 14Which organelle has a 9 + 0 pattern of microtubules?

centriole

cilia

mitochondria

flagella

kinesin

Question 15Which statement about an ecosystem is incorrect?

Energy flows through an ecosystem, with some being lost as heat.

There is a community of organisms, but no non-living components.

Chemicals are recycled in an ecosystem.

Climate is the main factor that determines where an ecosystem will be located.

Some organisms produce food used by themselves and others.

Question 16Determine what would happen to an individual’s proteins if they developed a fever of 103 o F for several days.

The proteins would denature due to the increase in body temperature and would increase in their ability to function correctly.

The proteins would increase in their ability to perform their functions because of the increase in body temperature.

The proteins would denature due to the increase in body temperature and would become unable to function correctly.

Nothing would happen to the proteins as a result of the increase in temperature.

One protein would alter in shape which would then cause the next protein to alter in shape which would cause a third protein to alter in shape and so forth until all of the proteins were altered in shape.

Question 17Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then

vesicles must travel from the rough ER and smooth ER to the Golgi apparatus.

the Golgi apparatus must be part of the endomembrane system.

the Golgi apparatus must consist of 3 to 20 slightly curved sacs.

vesicles must travel from the Golgi to the cell surface.

the Golgi apparatus would contain proteins.

Question 18Which statement about living organisms is not correct?

Living organisms maintain homeostasis.

Living organisms create energy.

Living organisms reproduce.

Living organisms have adaptations.

Living organisms grow and develop.

Question 19Which of the following sequences correctly lists the bonds in order of strongest to weakest?

single covalent – double covalent – ionic – hydrogen

ionic- double covalent – single covalent – hydrogen

double covalent – single covalent – hydrogen – ionic

double covalent – single covalent – ionic – hydrogen

hydrogen – double covalent – single covalent – ionic

Question 20Which of the following molecules is NOT a compound?

H2

HCl

NaOH

H2O

C6H12O6

Question 21What is the format for the binomial name of human beings?

Homo sapiens

Sapiens homo

Homo Sapiens

homo sapiens

homo Sapiens

Question 22When two glucose molecules combine they form a disaccharide molecule and

a water molecule.

a lipid molecule.

another glucose molecule.

a dipeptide molecule.

another disaccharide molecule.

Question 23Ever since the antibiotic drug penicillin was discovered in 1928, the incidence of resistant bacteria has steadily increased as a direct result of

reproduction.

homeostasis.

development.

biodiversity.

natural selection.

Question 24A piece of petrified wood was once part of a living organism that has had its tissues replaced by minerals. Which property of life will still be present in the wood?

organization

response to stimuli

metabolism

growth and reproduction

homeostasis

Question 25In moving from the outside environment to the inside of a bacterium, the first layer encountered would be

the nucleus.

the capsule.

the cell wall.

the DNA.

the cell membrane.

Question 26The common name for “cat” in Spanish is “gato” and in Chinese is “mao.” Which of the following statements pertaining to the use of scientific names instead of common names is false?

The scientific name begins to tie the organism into related groups.

The common name clearly identifies an organism as unique.

Scientific names can be known and recognized by all scientists throughout the world.

Common names may include different sets of organisms.

To recognize an organism in the literature by its common name, a scientist would have to know multiple languages.

Question 27Which domains contain organisms that lack a membrane-bound nucleus?

Bacteria and Eukarya

Archaea and Animalia

Archaea and Bacteria

Eukarya and Animalia

Archaea and Eukarya

Question 28Which of the following is of least importance when concerning the preservation of ecosystems?

It is estimated that possibly 400 species become extinct each day due to activities of humans.

Many different organisms perform services that ensure our continued existence.

Humans derive medicines, food, and many important materials from functioning ecosystems.

Ecosystem preservation maintains the status of species in their current state.

Preservation of ecosystems allows humans to exploit as many resources as possible.

Question 29The lower the pH

the lower the hydrogen ion (H+) concentration.

the greater the hydroxide ion (OH-) concentration.

the closer the hydroxide ion (OH-) concentration comes to equaling the hydrogen ion (H+) concentration.

the higher the pH.

the more acidic the solution.

Question 30Which organelle will give off oxygen and use up carbon dioxide in plants?

lysosome

chloroplast

Golgi apparatus

mitochondrium

rough endoplasmic reticulum

Question 31All the banded sunfish ( Enneacanthus obesus) in a pond would comprise a(n)

ecosystem.

species.

biosphere.

population.

community.

Question 32

 

If a new anti-cancer drug is found to be effective in initial tests with mice, what might researchers conclude?

The drug is effective in the mouse model; it must still be tested in humans.

If the drug was effective in a large number of mice, it will therefore be effective in humans.

If the drug was effective in a small proportion of mice, it will be effective in a small proportion of humans.

The mice have provided a positive control in this experiment that proves the drug is effective in humans.

The effect of the drug on mice has no bearing on the effect of the drug on humans.

Question 33Removal of the hydroxyl functional group would disrupt the structure of

nucleotides and fatty acids.

sugars.

sugars and some amino acids.

nucleotides and phospholipids.

fatty acids and amino acids.

Question 34Which is NOT a association of cell organelles and their structure?

ribosome-RNA and protein in two subunits

endoplasmic reticulum-concentrated chromatin, RNA, and nucleoli

centriole-microtubules

plasma membrane-two layers of phospholipids with embedded proteins

cell wall-cellulose fibers and lignin

Question 35Which is NOT a association of cell organelles and function?

cell wall-regulate molecule passage in and out of animal cells

ribosome-production of proteins

vacuole-storage of chemicals

lysosome-intracellular digestion

mitochondrion-cell respiration

Question 36Which group of lipids will contain a barrier formed by hydrophilic heads that face outwards and hydrophobic tails that face inwards?

phospholipids

steroids

triglycerides

trans-fatty acids

saturated acids

Question 37Which statement about the cellular nucleic acids DNA and RNA is incorrect?

Both DNA and RNA are polymers of nucleotides.

DNA is double-stranded, and RNA is single-stranded.

DNA has a helix shape; RNA does not.

The sugar in DNA is deoxyribose, and in RNA the sugar is ribose.

RNA and DNA have the same four nitrogen-containing bases.

Question 38Which of the following is a potential consequence if people stop using technology in the agriculture industry?

There would be a collapse of many of the terrestrial ecosystems on Earth.

There could be a significant decrease in the amount of food produced.

The amount of food produced would increase.

The extinction of the top level species that reside in the communities around the agricultural land.

None of these consequences will occur if people stop using technology in the agriculture industry.

Question 39The nucleolus

contains RNA and is found in the nucleus.

contains RNA and is found in the cytoplasm.

contains DNA and is found in the nucleus.

contains DNA and is found in the cytoplasm.

contains ribosome subunits and is found in the cytoplasm.

Question 40If a cell lacked ribosomes, it would NOT be able to

hydrolyze fat.

form a spindle apparatus.

synthesize proteins.

respire.

form a Golgi vesicle.

Question 41Which of the following reactions is most likely to occur if an individual was to ingest a large dose of lemon juice?

There would be an increase in the amount of carbonic acid within the bloodstream. If the carbonic acid didn’t form, then the pH of the individual’s blood could shift toward 7.8.

There would be a decrease in the amount of carbonic acid within the bloodstream. If the carbonic acid didn’t form, then the pH of the individual’s blood could shift toward 7.2.

There would be a decrease in the amount of carbonic acid within the bloodstream. If the carbonic acid didn’t form, then the pH of the individual’s blood could shift toward 7.8.

There would be an increase in the amount of carbonic acid within the bloodstream. If the carbonic acid didn’t form, then the pH of the individual’s blood could shift toward 7.2.

Question 42Which sequence of classification categories is in the proper order from least to most inclusive?

species, genus, family, order, class, phylum, kingdom, domain

species, genus, family, class, order, phylum, kingdom, domain

genus, class, kingdom, domain, order, phylum, species, family

domain, class, genus, family, species, order, phylum, kingdom

genus, species, order, class, family, kingdom, domain, phylum

Question 43The smallest unit that has all of the characteristics of life is the

organ.

tissue.

organ system.

organism.

cell.

Question 44In the late 1800s, Louis Pasteur was searching for a vaccine for anthrax in livestock. One French veterinarian had a local reputation for being able to cure anthrax by applying oils and wrapping the animal in cloth to induce a fever. Pasteur also knew that some animals got well on their own when left untreated. Pasteur tested the effectiveness of the local veterinarian’s methods by injecting four cattle with anthrax bacteria. He then directed the veterinarian to perform his procedures on two cattle. The other two cattle were left alone. One cow from each group died and the other one in each group survived. Pasteur dismissed the veterinarian’s procedure as ineffective, but he also considered this to be a poor test. Why would he consider this to be a poor test?

The number of cows that survived was the same as the number of cows that died.

With such a small group you can’t determine if survival was dependent on the treatment or random chance.

The difference in survival between the two groups was not dependent on the treatment.

In a small group with 50% survival, the treated cows would have survived anyway.

The production of a fever in the treated cattle interfered with the outcome.

Question 45When you are overheated, you perspire, and when you are too cold, you shiver to generate heat. Which property of life is best represented by this example?

organization

adaptation

homeostasis

behavior

development

Question 46Which cellular structure is responsible for packaging materials with the cell?

lysosomes

mitochondria

chloroplasts

ribosomes

Golgi apparatus

Question 47An unmanned spacecraft has been sent to another planet to detect other life forms that might be quite different from those on Earth. If the probe could only send back one still picture, which property or properties of life would be observable in a picture?

homeostasis and metabolism

growth and reproduction

evolution

organization

response to stimuli

Question 48All the organisms of various species living within a given area constitute a(n)

population.

community.

domain.

biosphere.

ecosystem.

Question 49The bones in a bird are hollow, reducing its weight for flight. This is an example of which characteristic of life?

Living things reproduce.

Living things are adapted.

Living things acquire materials and energy from the environment.

Living things grow and develop.

Living things are homeostatic.

Question 50The molecular structure shown here is

 a glycerol molecule.

a glucose molecule.