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College Biology Quiz on Introductory Biology Exam, created by Tayleaf on 06/05/2015.

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Introductory Biology Exam

Question 1 of 38

1

Though scientists strive to be "purely objective", they:

Select one of the following:

  • Can't avoid being subjective

  • Have their own perspective or points of view

  • Are not neutral because of their having grown up in a particular aspect of society at a certain time

  • All of these statements are true

Explanation

Question 2 of 38

1

A valid experiment:

Select one of the following:

  • Always supports the hypothesis

  • Does not have to be repeatable

  • Includes both experimental and control treatments

  • All of these statements are true

Explanation

Question 3 of 38

1

Which of the following situations can be studied by using the scientific method?

Select one of the following:

  • Buying an air conditioner

  • Determining the effect of light on a frog

  • Finding the cause of static on your favorite radio station

  • All situations can be investigated

Explanation

Question 4 of 38

1

Adaptations:

Select one of the following:

  • Are short-lived

  • Result from the processes of mutation and natural selection

  • Decrease an organism's ability to survive in a particular environment

  • Affect only an organism's physiology

Explanation

Question 5 of 38

1

You are testing the effect of sugar on the freezing point of water. Your experimental setup is indicated below.
Beaker: Solution (20 mLs per beaker):
A 1% sugar
B 5% sugar
C 10% sugar
D 1% salt

You place the beakers in the freezer for one hour. You examine them and conclude that your experiment is invalid because:

Select one of the following:

  • Your sample of 20 mLs is too small

  • You didn't include a control

  • You didn't include beakers with 10% and 5% salt solution

  • You didn't repeat the experiment three times

Explanation

Question 6 of 38

1

Observations may:

Select one of the following:

  • Provide a large amount of scientific data

  • Allow for personal bias to enter a scientific investigation

  • Form the bases of a scientific theory

  • All situations are true

Explanation

Question 7 of 38

1

Which of these characteristics of life takes the longest time?

Select one of the following:

  • Metabolism

  • Growth

  • Evolution

  • Reproduction

Explanation

Question 8 of 38

1

An atom of magnesium has an atomic number of 12. How many electrons would be found in the third energy level?

Select one of the following:

  • 1

  • 2

  • 5

  • 6

Explanation

Question 9 of 38

1

Electrons:

Select one of the following:

  • Are randomly distributed around the nucleus

  • Are major contributors to the atomic weight

  • Have a negative charge

  • Do not participate in chemical bonds

Explanation

Question 10 of 38

1

The atomic number of oxygen is 8. Oxygen 16 and oxygen 18 are isotopes. They have:

Select one of the following:

  • The same number of neutrons

  • Different numbers of negatively charged particles

  • The same atomic mass

  • The same number of electrons in the outer shell

Explanation

Question 11 of 38

1

When an atom with seven electrons in the outer shell picks up another one, the atom becomes:

Select one of the following:

  • An isotope

  • A negatively charged ion

  • A positively charged atom

  • Radioactive

Explanation

Question 12 of 38

1

The transfer of electrons between two atoms occurs in a(n)

Select one of the following:

  • Covalent bond

  • Ionic bond

  • Hydrogen bond

  • All situations are true

Explanation

Question 13 of 38

1

The atomic # of an element is 10. This element would most likely:

Select one of the following:

  • Form ionic bonds

  • Be unreactive

  • Form covalent bonds

  • Can't tell from the information given

Explanation

Question 14 of 38

1

The chemical processes in the living cell are collectively called:

Select one of the following:

  • Adaptation

  • Homeostasis

  • Evolution

  • Metabolism

Explanation

Question 15 of 38

1

Radioactive isotopes:

Select one of the following:

  • Are electrically unbalanced

  • Are produced when substances are exposed to radiation

  • Undergo rearrangements and emit radiation in the process

  • Only undergo rearrangements when bombarded with particles

Explanation

Question 16 of 38

1

In science, a hypothesis that is not rejected after repeated tests is called:

Select one of the following:

  • An experiment

  • A hypothesis

  • A theory

  • True

Explanation

Question 17 of 38

1

Which of the following best describes the logic of the scientific process?

Select one of the following:

  • If I generate a testable hypothesis, tests and observations will support it.

  • If my prediction is correct, it will lead to a testable hypothesis.

  • If my tests are set up right, they will lead to a testable hypothesis.

  • If my hypothesis is correct, I can expect certain test results.

Explanation

Question 18 of 38

1

The epigenetic identical twin mice demonstrate how:

Select one of the following:

  • Identical twins always look identical

  • Identical twins raised in different environments look different

  • Living organisms are products of their genes and the genes' environments

  • All situations are true

Explanation

Question 19 of 38

1

Inorganic compounds:

Select one of the following:

  • Always contain carbon

  • Often contain ionic bonds

  • Include carbohydrates, lipids, proteins, and nucleic acids

  • Are usually very large

Explanation

Question 20 of 38

1

Which of the following statements is true for water?

Select one of the following:

  • Water is a non-polar substance

  • Hydrogen bonds join two hydrogen atoms to the oxygen atom

  • In the molecule, the hydrogen atoms have a partial negative charge

  • In the molecule, the hydrogen atoms have a partial positive charge

Explanation

Question 21 of 38

1

The fact that water can maintain a constant temperature well is because it has a:

Select one of the following:

  • High heat of vaporization

  • High specific heat

  • Low freezing point

  • Non-polar nature

Explanation

Question 22 of 38

1

Which of the following is (are) due to the fact that H2O molecules hydrogen bond to each other in liquid water?

Select one of the following:

  • High heat of vaporization

  • High surface tension

  • High specific heat

  • All situations are true

Explanation

Question 23 of 38

1

Because ice expands upon forming:

Select one of the following:

  • Ice is denser than liquid water

  • Water isn't a very good solvent

  • Ponds freeze from the top down

  • All situations are true

Explanation

Question 24 of 38

1

A pH of 10 is how many times as basic as a pH of 7?

Select one of the following:

  • 3

  • 10

  • 100

  • 1000

Explanation

Question 25 of 38

1

A reaction of an acid and a base will produce water and:

Select one of the following:

  • Gas

  • A salt

  • Solute

  • Solvent

Explanation

Question 26 of 38

1

In water, H2CO3 dissociates into H+ and HCO3-. This compound, H2CO3, is behaving as a(n):

Select one of the following:

  • Base

  • Buffer

  • Acid

  • Salt

Explanation

Question 27 of 38

1

Most life processes take place at a pH of:

Select one of the following:

  • 3 to 4

  • 4 to 6

  • 6 to 8

  • 8 to 12

Explanation

Question 28 of 38

1

Which is true about the pH scale?

Select one of the following:

  • It is linear

  • It defines the degree of acidity or basicity of a solution

  • It is expressed with numbers 1-12

  • All situations are true

Explanation

Question 29 of 38

1

Scientific facts cannot be disputed.

Select one of the following:

  • True
  • False

Explanation

Question 30 of 38

1

Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur constitute less than 75% of the composition of living organisms.

Select one of the following:

  • True
  • False

Explanation

Question 31 of 38

1

The remains of organisms found in geologic formation are called fossils.

Select one of the following:

  • True
  • False

Explanation

Question 32 of 38

1

The Daddy water bugs story was used to illustrate how the sociocultural framework of scientists can limit their vision.

Select one of the following:

  • True
  • False

Explanation

Question 33 of 38

1

The power of human belief systems is such that even our immune system response can be modified by previous conditioning.

Select one of the following:

  • True
  • False

Explanation

Question 34 of 38

1

The bonds in methane (CH4) are ionic.

Select one of the following:

  • True
  • False

Explanation

Question 35 of 38

1

PET scans are used medically to see activity in the body after a person is given radioactive tracers.

Select one of the following:

  • True
  • False

Explanation

Question 36 of 38

1

Critical thinking involves examining the big picture and questioning methodology, results, and conclusions.

Select one of the following:

  • True
  • False

Explanation

Question 37 of 38

1

Heavy hydrogen, an isotope of hydrogen, differs from the regular atom in its charge.

Select one of the following:

  • True
  • False

Explanation

Question 38 of 38

1

Homologous structures look alike in different lineages but evolved independently.

Select one of the following:

  • True
  • False

Explanation

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