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Intro to biology
A guide to the natural world
49
Biology
Undergraduate 2
09/19/2010
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Term

 Which of the following is NOT true about aerobic respiration?

 

A)

Generates 36 ATPs

B)

Requires water

C)

Requires oxygen

D)

Breaks glucose sugar into 6 CO2 molecules

E)

Done by most organisms including animals and plants
Definition
B
Term

 

Which of the following is False?


 

A)

Quarts is a metric measurement for volume

B)

Millimeters (mm) is a metric measurement for length

C)

Scientist around the world use the English system for their measurements

D)

Degree celsius (ºC) is the metric measurement for temperature

E)

One can convert English measurements to metric measurements and vice verse
Definition
A
Term

 Which of the following is NOT true about a scientific theory?

 

A)

It is supported by evidence, facts and/or experimental results

B)

It is only a guess

C)

It is subject to revision due to new evidence

D)

It can become accepted as true if it stands the test of time without being rejected

E)

It is an explanation for some aspect of nature
Definition
B
Term

Which of the following is NOT a property of water?

 

A)

High surface tension

B)

Absorbs and stores heat

C)

Can be acidic and basic

D)

Uncharged molecules dissolve readily in it

E)

Water's solid form is less dense than its liquid form
Definition
D
Term

 Chemical bonds in sugar or hydrocarbons that can be broken during breakdown would be an example of

 

A)

Solar energy

B)

Nuclear energy

C)

Kinetic energy

D)

Potential energy
Definition
D
Term

Which of the following lists the steps in the scientific method in the correct order?

 

 

A)

Experiment, Observation, Hypothesis, Question, Conclusion

 

B)

Observation, Question, Hypothesis, Experiment, Conclusion

 

C)

Hypothesis, Observation, Conclusion, Experiment, Question

 

D)

Experiment, Conclusion, Observation, Hypothesis, Question

 

E)

Conclusion, Hypothesis, Question, Experiment, Observation
Definition
B
Term

 

Which of the following acts as information carriers or storage of the information that controls the cell?

 

A)

Steroids

B)

Carbohydrates

C)

Nucleic acid

D)

Lipids

E)

Proteins
Definition
C
Term

Which of the following is NOT a step in the scientific method?

 

A)

Hypothesis

B)

Make a tenet

C)

Experiment

D)

Observation

E)

Question

Definition
B
Term

 If you placed a slice of potato in a beaker of a hypertonic solution (contains a high concentration of salt relative to stuff inside the cells of the potato), What would happen to the slice of potato? 


A)

The potato slice would burn up to a crisp and give off CO2

B)

The potato slice would stay the same size

C)

The potato slice would swell in size or get bigger and heavier because it is taking in water

D)

The potato slice would decrease in size and get lighter because it is losing water to the beaker

E)

The potato slice would explode and become a YouTube sensation
Definition
D
Term

 Carbohydrates are a polymer of

A)

fatty acids

B)

steroids

C)

amino acids

D)

nucleotides

E)

sugar molecules
Definition
E
Term

Which of the following is false?

 

 

A)

Enzymes speed up the rate at which chemical reactions occur within cells

 

B)

Enzymes can act to break a chemical bond causing a molecule to split into two molecules

 

C)

Enzymes are carbohydrates

 

D)

Enzymes make it easier for a reaction to occur

 

E)

Enzymes can act to link two molecules together
Definition
C
Term

 Find the list that places members of the level of organization of life in the correct order from smallest to largest?


A)

Cells, molecules, organs, organism, ecosystem

B)

Ecosystem, organs, organism, cells, molecules

C)

Organism, organs, cells, ecosystem, molecules

D)

Molecules, cells, organs, organism, ecosystem

E)

Organs, molecules, cells, ecosystem, organism
Definition
D
Term

 Which of the following is NOT true about fats?


A)

Store more potential energy than sugers

B)

Dissolve readily in water

C)

Contain three fatty acids

D)

More hydrophobic than sugars

E)

More reduced than sugars
Definition
B
Term

Ribosomes

 

A)

are the site of aerobic respiration and energy conversion in cells

B)

are involved in protein synthesis

C)

are the site where DNA is stored within cells

D)

are the site of photosynthesis within cells

E)

are protein filaments involved in cell shape, structural support and mobility
Definition
B
Term

 Which of the following is NOT a feature or property of living organisms that is considered to be a property that helps distinguishes living organisms from non-living things?

 

A)

Organisms have the ability to grow

B)

Organisms have the ability to reproduce

C)

Organisms can't maintain or repair their structure

D)

Organisms have the ability to respond to their environment

E)

Organisms are composed of cells
Definition
C
Term

How many electrons are shared between two atoms linked by a single covalent bond?

 

A)

Three

B)

Four

C)

Two

D)

Five

E)

One
Definition
C
Term

Which of the following acts as energy currency in the cell?

 

A)

CO2

B)

Amino acids

C)

ATP

D)

ADP

E)

A and B
Definition
C
Term

How many covalent bonds does each carbon atom form?

 

A)

Two

B)

Three

C)

Four

D)

Five

E)

One
Definition
C
Term

 Which of the following is true about simple sugar (monosacchrides)?

 

 

A)

Some are unsaturated

 

B)

Are hydrophobic

 

C)

Three sugars are linked to a fatty acid in fats and oils

 

D)

Have the molecular formula of CnH2nOn

 

E)

Are linked together to form proteins
Definition
D
Term

 Which of the following is true?

 

A)

Burning wax consumed less energy than burning popcorn

B)

Burning wax consumed more energy than burning popcorn

C)

Burning wax released more energy than burning popcorn

D)

Burning wax released less energy than burning popcorn
Definition
C
Term

between chloroplasts and mitochondria?

 

A)

Both are organelles that are thought to arise due to engulfment of a bacteria leading to endosymbiosis

B)

Both are found in all types of cells (both prokaryotes and eukaryotes)

C)

Both are both found in animal cells

D)

Both are involved in processing proteins

E)

C and D
Definition
A
Term

 Which of the following acts as enzymes, cell structural components, and transporters across membraens?

 

A)

Lipids

B)

Nucleic acids

C)

Proteins

D)

Carbohydrates

E)

Steroids
Definition
C
Term

 Energy is generally needed or consumed for which of the following?


A)

When a larger molecule is broken down into smaller, simpler molecules

B)

When the carbon in organic molecules such as sugars is oxidized to CO2

C)

When organic molecules are burned

D)

When small molecules are linked together to make larger ones

E)

A and B
Definition
D
Term

 The organelle that in involved in photosynthesis is ______


A)

The nucleus

B)

The chloroplast

C)

The endoplasmic reticulum

D)

The cytoskeleton

E)

The ribosome
Definition
B
Term

The reaction 6 CO2 + 6 H2O → C6H12O6 + 6 O2 describes what metabolic pathway?


A)

Alcoholic fermentation

B)

Photosynthesis

C)

Lactic fermentation

D)

Glycolysis

E)

Aerobic respiration
Definition
B
Term

 The outer lining or barrier found in all cells is _________.

 

A)

The endoplasmic reticulum

B)

The plasma membrane

C)

The Golgi membrane

D)

The nucleus

E)

The cell wall
Definition
B
Term

Place the metric measurements of length in order from smallest to largest?

 

A)

mm, cm, m, km

B)

mm, m, km, cm

C)

cm, mm, km, m

D)

km, cm, m, mm

E)

m, km, cm, mm
Definition
A
Term

Which of the following is a difference between prokaryotic bacterial cells and eukaryotic cells of animal or plants?


A)

Prokaryotic cells are bigger than eukaryotic cells

B)

Prokaryotic cells are often multicellular

C)

Prokaryotic cells lack a cell membrane

D)

Prokaryotic cells lack DNA

E)

Prokaryotic cells lack any membranous organelles (ER, Golgi, etc)
Definition
E
Term

Which of the following is NOT true?

 

A)

Science is body or collection of knowledge scientists have gained about our universe

B)

Science can propose both natural and supernatural explanations for events in the universe

C)

Science is a way of learning about our universe

D)

Science thinks all events can be explained by the laws and theories of the various disciplines of science

E)

Scientific explanations and theories are open to challenge and revision
Definition
B
Term

 Steroid and fats are similar in that _____?

 

A)

Both are hydrophobic

B)

Both are unsaturated

C)

Both are small, charged molecules

D)

Both are nucleotides

E)

Both contain amino acids
Definition
A
Term

You are setting up a demonstration of osmosis.  You fill two chambers that are separated by a semi-permeable membrane with two different concentrations of salt.  The membrane will allow water to diffuse through it but will not allow salt to diffuse through it.  In chamber A, you place a solution with a high concentration of salt (1 salt to 4 water molecules) and in chamber B you place a solution with a low concentration of salt (1 salt to 12 water molecules).  What will be the overall effect observed in chamber A after this is allowed to sit for a few minutes.

 

A)

Water will diffuse across the membrane out of A and into chamber B thereby decreasing the volume in chamber A

B)

Water will diffuse across the membrane out of B and into chamber A thereby increasing the volume in chamber A

C)

Salt will diffuse across the membrane out of A and into chamber B thereby decreasing the volume in chamber A

D)

No change will be observed in the volume in chamber A

E)

Salt will diffuse across the membrane out of B and into chamber A thereby increasing the volume in chamber A
Definition
B
Term

Which gives off the most energy per gram when it is either burned or broken down and oxidized by cells?

 

A)

Lipids (fats and oils)

B)

Water

C)

Alcohol

D)

Protein

E)

Carbohydrates
Definition
A
Term

 Which of the following has the properties of being a good solvent for polar or charged molecules, having high surface tension, and becoming less dense when frozen?


A)

Fats

B)

Water

C)

Alcohol

D)

Carbohydrates

E)

Oils
Definition
B
Term

 Which of the following is true?

 

A)

Only animals do photosynthesis

B)

Only plants do fermentation

C)

Respiration occurs in the endoplasmic reticulum (ER)

D)

Respiration generates oxygen

E)

Both plants and animals do aerobic respiration
Definition
E
Term

 Cytoskeleton is  ________.

 

A)

Protein complexes that act to synthesize the protein skeleton of cells

B)

A stack of membrane sacs that fill the cell and prevent shrinking

C)

A chain of sugars that form a support structure for plants

D)

a network of protein filaments that act as structural scaffolding inside the cell and in movement of cells

E)

Protein enzymes involved in the metabolism of carbon skeletons
Definition
D
Term

 Which of the following is composed of two hydrophobic fatty acids chains and charged phosphate group linked to a glycerol which makes the overall molecule amphipathic?

 

A)

Phospholipids

B)

Nucleotides

C)

Sugar molecules

D)

Amino acids

E)

Steroids
Definition
A
Term

Which of the following are roles served by polysaccharides in organisms?


A)

Energy store

B)

Structural support in cell wall

C)

Form membranes

D)

Form enzymes

E)

A and B
Definition
E
Term

The Golgi complex consists of membrane sacs and vesicles that


A)

act as distribution center for the modification and shipping of proteins

B)

act as a barrier around the outside of the cell

C)

act as the powerhouse in energy generation

D)

act to synthesize proteins

E)

act as control center by holding the genetic material
Definition
A
Term

The nucleus

 

A)

is the site or aerobic respiration and energy generation within cells

B)

is the site where protein synthesis occurs within cells

C)

is the site of photosynthesis in cells

D)

is the site where DNA is stored within eukaryotic cells

E)

is found in all type of cells
Definition
D
Term

Which of the following is true about a molecule?


A)

A molecule contains two or more atoms in a specific ratio

B)

The atoms in molecules are held together by chemical bonds

C)

Two different molecules can have the same molecular formula such as C6H12O6 but can differ in the spatial arrangement of the atoms

D)

A molecule is a distinct chemical substance

E)

All of the above
Definition
E
Term

Which of the following is generated during the process of oxidizing the carbon atoms in glucose to CO2 and then are later used to generate ATP?

 

A)

fatty acids

B)

sodium ions

C)

NADHs

D)

amino acids

E)

cholesterol molecules
Definition
C
Term

Which of the following is true?


A)

Trans fat are liquid at room temperature

B)

A trans fat has a fatty acid chain with a major kink or bend in it

C)

Trans fat have a four ring structure instead of a long fatty acid chain

D)

Trans fats behave more like an unsaturated fats than a saturated fat

E)

Trans fats behave more like a saturated fat than an unsaturated fat
Definition
E
Term

Which of the following can readily diffuse through a plasma or cell membrane of cells without assistance which leads to the phenomenon of osmosis?

 

A)

Salt ions

B)

Water

C)

Carbohydrates

D)

Large, charged proteins

E)

Nucleic acids (DNA)
Definition
Term

 Mitochondria are

 

A)

involved in protein processing

B)

protein filaments involved in cell shape, structural support and mobility

C)

principal site for aerobic respiration and energy generation in eukaryotic cells

D)

site where DNA is stored

E)

site where photosynthesis occurs in cells
Definition
C
Term

You see an ad for a new herb extract that claims to help to prevent individuals from getting the common cold.  What would science think is the best method to test whether this claim is true?

 

A)

Form two similar groups of humans and have one take the herbal extract and the other take a placebo for six months and monitor how many colds they get during the time

B)

Interview individuals who are consuming the herb about how many colds they have gotten since they starting taking the herb

C)

Give the extract to 12 rats in the lab and expose them to humans with the common cold

D)

Give the extract to 12 celebrities and have them give reports on the Oprah show.

E)

Interview a selected study group about their frequency of getting colds before and after taking the extract for one month
Definition
A
Term

 Nucleic acids such as DNA are made by linking together___________


A)

Amino acids

B)

Fatty acids

C)

Nucleotides

D)

Simple sugars such as glucose

E)

A and B
Definition
C
Term

 The number of electrons in the outer most shell of an atom plays a major role in determining ______.

 

A)

Whether the atom has neutrons

B)

The number of neutrons in the nucleus of the atom

C)

How many chemical bonds it will form with other atoms

D)

Whether the atom is basic

E)

Whether the atom is hydrophobic
Definition
C
Term

 Which of the following is a tentative, testable explanation for some aspect of nature?

 

A)

Hypothesis

B)

Observation

C)

Question

D)

Theory

E)

Experiment
Definition
A
Term

 Which of the following is true about this molecule?

 

A)

The molecule would be classified as a lipid

B)

The molecule would be considered a polar molecule

C)

The molecule contains only 1 carbon atom

D)

The molecule would be considered a hydrophobic molecule

E)

The molecule is a trans fat
Definition
B
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