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46 Cards in this Set

  • Front
  • Back
Which of the following properties of processes do we associate with living things?

a) evolutionary adaptations


b) growth and reproduction


c) energy processing


d) responding to the environment


e) all of the above

E) ALL OF THE ABOVE
Which of the following sequences represents the hierarchy of biological organization from the least to the most complex level?

a) ecosystem, cell population, tissue, organism, organ system


b) molecule, cell, organ, system, population, ecosystem, biosphere


c) organelle, tissue, biosphere, ecosystem, population, organism


d) organism, community, biosphere, molecule, tissue, organ


e) cell, community, population, organ system, molecule, organelle

B) MOLECULE, CELL, ORGANSYSTEM, POPULATION, ECOSYSTEM, BIOSPHERE


THE LOWEST LEVEL OF BIOLOGICAL ORGANIZATION THAT CAN PERFORM ALL THE ACTIVITIES REQUIRED FOR LIFE IS THE

A) CELL-FOR EXAMPLE A SKIN CELL


B) TISSUE FOR EXAMPLE NERVOUS TISSUE


C) ORGAN SYSTEM FOR EXAMPLE, THE REPRODUCTIVE SYSTEM


D) ORGANELLE FOR EXAMPLE A CHLOROPLAST


E ORGANISM FOR EXAMPLE AN AMOBA, DOG, HUMAN OR MAPLE TREE

A) CELL FOR EXAMPLE A SKIN CELL
Which of the following is reflective of the phrase "the whole is greater than the sum of its parts"?

A) positive feedback


B) feedback regulations


C) reductionism


D) emergent properties


E) natural selection

D) emergent properties
Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. the increasing labor contractions of childbirth are an example of

A) systems biology


B) emergent properties


C) negative feedback


D) positive feedback

D) positive feedback
A localized group of organisms that belong to the same species is called a

A) biosystem


B) Community


C) population


D) ecosystem

C) population
Science cannot answer certain faith based questions because

A) scientist are not able to study human behavior


B) with faith based beliefs you cannot falsify the hypothesis you must accept it on faith


C) faith requires emergent properties


D) there aren't enough variables

B) With faith-based beliefs you cannot falsify the hypothesis, you must accept it on faith
The scientific method includes all of the following EXCEPT:

A) a controlled experiment


B) a testable theory


C) an observation


D) a hypothesis


E) asking questions

B) a testable theory
In a word, "evolution" means

A)selection


B) improvement


C) nature


D) change

D) Change


Chromosomes are made of

A) cells


B) carbohydrates


C) organelles


D) deoxyribonucleic acid

D) deoxyribonucleic acid
IN which kingdom does a multicellular, eukaryotic, photosynthetic organism belong?

A) Protists


B) Fungi


C) Plantae


D Animalia

C) Plantae
A basic difference between a prokaryotic cell and a eukaryotic cell is that the prokaryotic cell

A) possesses membrane-bound organelles


B) lacks DNA


C) lacks a nucleus


D) is considerably larger

C) lacks a nucleus
A hypothesis is always an "If...then" statement

A) True


B) False

B) False
Prokaryotes are classified as belonging to two different domains. What are the domains?

A)Bacteria and Eukarya


B) Archaea and Monera


C) Eukarya and Monera


D) Bacteria and Protista


E) Bacteria and Archaea

E) Bacteria and Archaea
When applying the processor science, which of these is tested?

A) a conclusion


B) a result


C) an observation


D) a hypothesis


E) a control group

D) a hypothesis
What are the building blocks of DNA called?

A) cells


B) nucleotides


C) ribonucleic acid


D) Proteins

B) nucleotides
In DNA what always base pairs with adenine

A) Guanine


B) Adenine


C) Cytosine


D) Thymine

D) Thymine
A theory is

A) an idea that has been proven


B) a concept in the early stages that still needs to be tested


C) a description of a belief that invokes the supernatural


D) an explanation of an idea that is broad in scope and supported by a large body of evidence

D) an explanation of an idea that is broad in scope and supported by a large body of evidence
To be scientifically valid, a hypothesis must be

A) part of a theory


B) controlled


C) reasonable


D) testable and falsifiable

D) testable and falsifiable
To understand the chemical basis of inheritance, we must understand the molecular structure of DNA. This is an example of the application of which concept to the study of biology?

A) evolution


B) Emergent properties


C) reductionism


D) feedback regulation

C) reductionism
What type of regulation is common in biological systems because it is inherently stabilizing

A) Positive feedback


B) Negative feedback


C) Reductionism


D) Emergent properties

B) Negative feedback


About 25 of the 92 natural elements are known to be essential to life. Which 4 of these 25 elements make up approximately 96 % of living matter?

A) carbon, sodium, hydrogen, nitrogen


B) carbon, oxygen, phosphorus, hydrogen


C) oxygen, hydrogen, calcium, nitrogen


D) carbon, hydrogen, nitrogen, oxygen


E) carbon, oxygen, nitrogen, calcium

D) carbon, hydrogen, nitrogen, oxygen


Why is each element unique and different from other elements with respect to its chemical properties?

A)Each element has a unique atomic mass.


B) Each element has a unique atomic number


C) Each element has a unique number of protons


D) Each element has a unique number roof neutrons


E) Each element has different radioactive properties

C) Each element has a unique number of protons
Knowing just the atomic mass of an element allows inferences about which of these following?

A) the number of electrons in the element


B) the number of protons in the element


C) the number of neutrons in the element


D) the number of protons plus neutrons in the element


E) the number of protons plus electrons in the element

D) the number of protons plus neutrons in the element
One difference between carbon-12 (12 6 C) and carbon -14 (14 6 C) is that carbon -14 has

A) two more protons than carbon-12


B) two more electrons than carbon-12


C)two more neutrons than carbon -12


D) two more protons and two more neutrons than carbon-12


E) two more electrons and two more neutrons than carbon-12

C) two more neutrons than carbon-12

Two atoms appear to have the same mass number. These atoms


A) must have the same atomic number.


B) must have the same number of electrons.


C) must have the same chemical properties.


D) must have the same number of protons + neutrons.

D) must have the same number or protons + neutrons.

A covalent chemical bond is one in which


A) elections are removed from one atom and transferred to another atom so that the two atoms become oppositely charged.


B) protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.


C) outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms


D) outer-shell electrons of one atom are transferred to fill the inner electron shell of another atom

C) outer0shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms

Nitrogen (N) is much more electronegative than hydrogen (H). Which of the following statements is correct about the atoms in ammonia NH3?


A) Each hydrogen atom has a partial positive charge; the nitrogen atom has a partial negative charge.


B)the nitrogen atom has a full positive charge; each hydrogen atom has a full positive charge.


C) Each hydrogen atom has a partial negative charge; each hydrogen atom has a a full positive charge.


D) The nitrogen atom has a partial positive charge; each hydrogen atom has a partial negative charge.


E) There are covalent bonds between the hydrogen atoms and polar bonds between each hydrogen atom and the nitrogen atom.

A) Each hydrogen atom has a partial positive charege; the nitrogen atom has partial negative charge

When two atoms are equally electronegative, they will interact to form


A) hydrogen bonds.B)van der Waals interactions.


C) polar covalent bonds.


D) nonpolar covalent bonds.


E) ionic bonds

D) nonpolar covalent bonds

What results from an unequal sharing of electrons between atoms?


A) a nonpolar covalent bond


B) a polar covalent bond


C) an ionic bond


D) radioactive decay


E) a hydrophobic interaction

B) a polar covalent bond

Which of the following molecules contains the most polar covalent bond?


A) H2


B) O2


C) C2H2


D)CH4


E) H20

E) H20



Van der Waals interactions result when


A) electrons are not symmetrically distributed in a molecule.


B) molecules held by ionic bonds react with water.


C) two polar covalent bonds react.


D) a hydrogen atom loses an electron

A) electrons are not symmetrically distributed in a molecule.



What is the maximum number of hydrogen atoms that can be covalently bonded in a molecule containing two carbon atoms?


A) 2


B) 3


C) 4


D) 6


E) 8

D) 6

Which of the following correctly describes any reaction that has reached chemical equilibrium?


A) the concentration of the reactants equals the concentration of the products.


B) The rate of the forward reaction is equal to the rate of the reverse reaction


C) All of the reactants have been converted to the products of the reaction.


D) All of the products have been converted to the reactants of the reaction.


E) Both the forward and the reverse reactions have stopped with no net effects on the concentration of the reactants and the products.

B) The rate of the forward reaction is equal to the rate of the reverse reaction.



Which of the following interactions/bonds represents most specifically the attraction of water molecules to one another?


A) nonpolar covalent bond


B) polar covalent bond


C) hydrogen bond


D) ionic bond


E) hydrophobic interaction

C) hydrogen bond



In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by


A) hydrogen bonds


B) nonpolar covalent bonds


c) polar covalent bonds


D) ionic bonds


E) van der Waals interactions.

C) polar covalent bonds

Liquid water's high specific heat is mainly a consequence of the


A) small size of the water molecules.


B) high specific heat of oxygen and hydrogen atoms


C) absorption and release of heat when hydrogen bonds break and form.


D) fact that water is a poor heat conductor.


E) higher density of liquid water than solid water (ice).

C) absorption and release of heat when hydrogen bonds break and form.

Which type of bond must be broken for water to vaporize or turn to steam?


A) ionic bonds


B) both hydrogen bonds and ionic bonds


C) polar covalent bonds


D) hydrogen bonds


E) both polar covalent bonds and hydrogen bonds



D) hydrogen bonds

Hydrophobic substances such as vegetable oil are


A) non polar substances that repel water molecules.


B) nonpolar substances that have an attraction for water molecules.


C) polar substances that repel water molecules.


D) polar substances that have a affinity for water.


E) charged molecules that hydrogen - bond with water molecules.

A) nonpolar substances that repel water molecules.

One mole (mol)of glucose (molecular mass = 180 daltons) is


A) 180 x 10 23 power molecules of glucose


B) 1 kg of glucose dissolved in 1 l of solution


C) the largest amount of glucose that can be disdisolved in 1 L of solution


D) 180 kilograms of glucose


E both 180 grams of glucose and 6.02 x 10 to the 23 power molecules of glucose

E) both 180 grams of glucose and 6.02x 10 to the 23 power molecules of glucose.`

How many molecules of glycerol (C3H8O3 ; molecular mass= 92) would be present in 1 L of a 1 M glycerol solution?


A) 1 x 10 to the six power


B) 14 x 6.02 x 10 23 power


C) 92 x 6.02 x 10 23 power


D) 6.02 x 10 26 power


E) 6.02 x10 23 power

E 6.02 x1023 power

The molar mass of glucose is 180 g/mol which of the following procedures should you carry out to make a 1 M solution of glucose?


A) Dissolve 1 g of glucose in 1 L of water.


B) Dissolve 180 g of glucose in 1 L of water


C) Disolve 180 g of glucose in 180 g of water


D Dissolve 180 miligrams (mg) of glucose in 1 L of water.


E) Dissolve 180 g of glucose in 0.8 L of water, and then 920 Feltl Court #107 Hopkins, MN 55343 more water until the total volume of the solution is 1 L

E) Dissolve 180 g of glucose in 0.8 L of water, and then 920 Feltl Court #107 Hopkins, MN 55343 more water until the total volume of the solution is 1 L

What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-12 power M?


A) pH 2


B) ph 4


C) ph 10


DpH12


E) ph 14

Aph 2

What is the hydrogen ion (H+) concentration of a solution of pH8


A) 8 M


B) 8 x 10-6 power M


C) 0.01 M


D) 10-8 power M


E) 10-6 power M

D) 10-8 power M

If the pH of a solution is increased from pH2 to pH4 it means that the


A) concentration of H+ is twice what it was at PH 5


B_ concentration H+ is on-half what it was at pH 5


C concentration of OH- is 100 x greater than what it was at pH5


D) concentration of OH- is one hundredth what it was at pH5

C) concentration of OH- is 100x greater than what it was at pH5

FOR THE REST OF THE QUESTIONS 46-50 TEST #1 CHECK THE ACTUAL TEST D/T DIAGRAMS

CHECK THE TEST TO REVIEW THESE QUESTIONS 46-50!