BIOL 1306 Exam 1 Mock Test

What are the five unifying themes of biology?

1. Organization

2. Information

3. Energy and Matter

4. Interactions

5. Evolution

What are the two types of cells?

Prokaryotic and Eukaryotic

What is the study of sets of proteins and their properties?

Proteomics

What is a population?

A group of the same species living in the same place at the same time.

What is the correct hierarchy of biological organization from largest to smallest?

Biosphere, Ecosystem, Communities, Populations, Organisms, Organs, Tissues, Cells, Organelles, Molecules

Investigating the molecular structure of DNA in order to understand the chemical basis of inheritance is an example of which approach utilized in the study of biology?

Reductionism

The fundamental and structural unit of life is what?

Cell

Living things are divided into three domains:

Bacteria, Archaea, Eukarya

A symbiotic relationship in which one organism benefits but the other is neither helped nor harmed is...

Commensalism

Which of the following is associated with both prokaryotic and eukaryotic cells?

Mitochondria ***

What is genome?

Study of whole sets of genes ***

Evolution is...

A core theme of biology, genetic changes in a population over time, humans interacting with our environment

A hypothesis is...

A tentative answer to some questions. Has to be testable and falsifiable.

Substances that have a low number of H+ in a solution are known as:

Acids

pH is a measure of

Hydrogen ion concentration

The subatomic particle of an atom that has no charge is a

Neutron

The subatomic particle of an atom that has a positive charge is a

Proton

The subatomic particle of an atom that has a negative charge is an

Electron

Electrons move across the nucleus of an atom in the same way that

Insects fly around a bright lamp at night

The atom Oxygen has 8 protons, 10 electrons, and 8 neutrons. What is its mass number?

16 (protons + neutrons)

Atomic number of an atom is

Number of protons in the atom

What type of variables are used during an experiment to distinguish between two types of quantities?

Dependent and control ***

When full, the K shell contains ____, while the Valence shell contains ____

2, 8

Ionic bonds are formed by

1 metal and 1 nonmetal

The further an electron is from the nucleus, the...

Greater its energy

What type of bond forms when two atoms share electrons?

Covalent bond

What are the two different types of data?

Quantitative and qualitative

What type of bond forms when two atoms share unequal amounts of electrons?

Polar covalent bond

What type of bond forms when two atoms share an equal amount of electrons?

Nonpolar covalent bond

Which type of cell does not lack a nucleus?

Plant cell (Archaea, Bacteria, Prokaryotes all lack nucleus)

The oxygen atom of a water molecule is more positively charged than which atoms?

The hydrogen atoms

Inductive reasoning

Reasoning from detailed facts to general principles

In class, three trace elements were discussed:

fluorine, iodine, iron

A water molecule H-O-H is held together by what type of bond?

Hydrogen bond

The shape of molecules affects:

types of atoms, types of bonds, specific arrangements of atoms, function

The shape of molecules doesn't affect:

electronegativity

Which 4 of 25 essential elements make up around 96% of living matter?

C, N, O, H

Which element is the 'skeleton' for all organic molecules?

Hydrogen

Organic molecules consisting of only carbons and hydrogens are called:

Hydrocarbons

What is the difference between H-O-C-H and H--C-O-H?

Structural isomers

Geckos can walk on walls because of...?

Van der Waals Bonding

After turning off the water after a shower, water clings to your body because of:

Adhesion

What bonds are broken as ice melts?

Hydrogen bonds

What is the solute?

Substance being dissolved in a solution

Which substance loves water?

Hydrophilic

An isotope is an atom with a different number of:

Neutrons

Which of the following statements best distinguishes a hypothesis from theories in science?

Hypothesis are usually narrow in scope, while theories have a broad explanatory power.

A single orbital can hold _____ electrons

***