Biology 109 Exam#1 COMPLETE 100 QUESTIONS
AND ACCURATE DETAILED ANSWERS \VERIFIED
100%
Terms in this set (93)
All lfe is organized
All life grows and develops
All life reproduces
What are the
All life responds to stimuli
characteristics of life?
All life processes energy
All life adapts
All life is homeostatic
make an observation,
comeup with a question,
List the steps to the
form a hypothesis,
scientific method.
collect and analyze data,
conclusion.
What is atomic mass? number of protons and number of neutrons
What is the atomic the number of protons and electrons
number?
What is an ion? an element or compound with an electrical charge
Cation: positive ion resulting from the loss of
What are the types of
electrons
ions?
Anion: negative ion resulting from a gaining of
What is their charge?
electrons
What is an isotope? an element with a charge in the number of neutrons
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, 7/17/25, 12:39 PM Biology 109 Exam#1
Ionic Bond: the bonding of opposite ions.
Covalent Bond: a bond resulting from the sharing of
What are the types of
electrons.
chemical bonds?
Hydrogen Bond: the bonding of hydrogen to another
element.
Protons: (+) charge; 1 amu
List the types of particles
Electrons: (-) charge; 0 amu
and their charge.
Neutrons: zero charge; 1 amu
Water is sticky,
Universal solvent,
List the properties of Ice is less dense than liquid water,
water. Water can fliter UV radiation,
Water remains a liquid over a wide temperature range,
Moderate pH.
List the difference Cohesion: water molecules bonding to each other
between cohesion and Adhesion: water molecules bonding to other polar
adhesion. molecules
The difference in pH units 1000 more acidic
between 2 acidic solutions
is 3. How much more
acidic is the stronger acid
than the weaker acid?
The 2+ in Cu2+ tells us that has two more protons than electrons
this atom is what?
An atom of carbon has an 12 - 6 = 6 neutrons
atomic number of 6 and
an atomic weight of 12.
How many neutrons are in
a typical carbon atom?
In chemical bonding, Covalent bond
when bonded atoms share
electrons is called?
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