Chapter 7 Chemistry
Chapter 8 Chemistry
Chapter 5 Biology
Chapter 6 Biology
Chapter 27 Biology
100
How do you find the the number of valence electrons in an atom of a representative element?
Look at the group number.
100
Atoms held together by sharing electrons are joined by a _____
Covalent bond
100
An organic molecule is a (carbon/non-carbon) based molecule.
Carbon
100
Which has more organelles prokaryotic or eukaryotic cells?
Eukaryotic cells.
100
The _______ supports the body and protects certain organs.
What is the integumentary system?
200
Atoms of which elements tend to gain electrons?
Nonmetals
200
Molecular compounds tend to have (lower/higher) melting and boiling points than ionic compounds.
Lower
200
(True/false) Lipids are hydrphillic.
False, they are hydrophobic
200
What is the function of a selectively permeable membrane?
To regulate the flow of substances
200
Name a voluntary muscle.
Skeletal muscle.
300
Ionic compounds are generally _____.
Neutral
300
What does VESPR stand for?
Valence-shell electron-pair repulsion
300
A _____ is a sugar containing two monosaccrides.
A disaccride.
300
The passive transport of water across a selectively permeable membrane is called ________
Osmosis
300
What is the internal stability your body maintains?
Homeostasis
400
The ions that are produced when atoms of chlorine and other halogens gain electrons are called _______.
Halide ions
400
A _______ _________ shows how many atoms of each element a molecule contains.
Molecular Formula
400
Which fat contains all three acids? (saturated or unsaturated)
Saturated
400
What do vesicles do?
It packages large particles.
400
What is the top layer of your skin?
The epidermis
500
Draw the electron dot structure for oxygen.
.. . O: .
500
What is a polar covalent bond?
A covalent bond in which the electrons are shared unequally.
500
Proteins for structures such as ____ and _____ (one example)
Hair and fur.
500
What two organelles help an animal cell move?
Flagella and cilia
500
As a ____ contracts, it pulls on the attached ____
Muscle, bone
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