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Review of Concept 2: Biology Basics Flashcards | StudBud
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Review of Concept 2: Biology Basics
Review of Concept 2: Biology Basics
20 terms
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A biology quiz covering scientific method, chemistry in biology, macromolecules, etc.
Flashcards
20 cards
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Practice quiz
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Host live
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Questions
20
Answers
1
When writing a conclusion, what should you always refer back to?
Materials used
A Sports Almanac
Procedure
Hypothesis
2
Scientists test a relationship between a “cause” and an “effect.” What is the effect?
Constant
Dependent Variable
Control Group
Independent Variable
3
All matter is composed of tiny molecules called _______.
Bingham's
protons
neutrons
atoms
4
Which particles determine the identity of an element?
Neutrons only
Protons only
Protons and neutrons
Protons and electrons
5
Water is said to be a polar molecule because of its unequal distribution of charges.
True
False
6
Internally, water molecules are held together by _____ bonds. Externally, they're held together by weak _____ bonds.
ionic, hydrogen
covalent, hydrogen
hydrogen, ionic
hydrogen, covalent
7
Water helps to regulate cell temperatures due to its ______.
sick dance moves
cohesive nature
adhesive nature
high specific heat
8
Meniscus forming from water forming on a graduated cylinder is caused by __________.
Cohesion
High Specific Heat
Adhesion
David Bowie
9
The nucleus of an atom has all of the following characteristics EXCEPT that it
contains nearly all of the atom's volume
is very dense
is positively charged
contains nearly all of the atom's mass
10
Why do atoms form bonds?
'Cause they low key lonely.
To store energy.
To release energy.
To become stable.
11
Cohesion from
covalent
bonds makes water molecules stick to each other.
True
False
12
The 6 essential elements necessary for life are Hydrogen, Carbon, Phosphorous, Oxygen, Nitrogen & Sodium.
False
True
13
Overall, the nucleus is _____ charged.
not
electronically
positively
negatively
14
An atom is electrically neutral because...
nuclear forces stabilize the charges
the number of protons and electrons are equal
neutrons balance the protons and electrons
the number of protons and neutrons are equal
15
Water and oil do not mix because oil is _______.
hydrophilic and nonpolar
just tryna' see other people, cuh.
hydrophobic and nonpolar
polar and hydrophobic
16
The difference between anions and cations: Cations are...
Negative
Positive
17
Atoms of elements in the same group of the periodic table share the same
atomic masses
number of valence electrons
number of energy levels
atomic numbers
18
The chemical bond formed when two nonmetallic atoms share electrons is called a(n)
James Bond
Electron Bond
Covalent Bond
Ionic Bond
19
The electrons that are lost, gained, or shared in chemical bonds are called _________.
Lewis electrons
Louis electrons
Valence electrons
Chemical electrons
20
Sodium chloride (table salt) will completely dissolve in water because it is ______.
a nonpolar molecule
a polar bear
a nonpolar bear
a polar molecule
