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Unit 1: Basics of Biology (chapters 1-3) Flashcards | StudBud
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Unit 1: Basics of Biology (chapters 1-3)
Unit 1: Basics of Biology (chapters 1-3)
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AP Biology study guide (pt 1)
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
buffers are acid/base balancing solutions that keep pH in homeostasis
true
false
2
if a substance is ph 7-14:
it's neutral
it's a base
it's an acid
3
quality of a base:
spare hydrogen (that is attached to a non-carbon)
tastes sour
electron acceptor
high levels of hydroxide (high pH)
4
what are ions?
free floating particles that get stuck in nuclei
atoms with an imbalanced number of electrons
the components of an electron
a heavy metal subdivision of elements
5
which is !NOT! one of the four main macromolecules?
lipids
glucose
protein
nucleic acids
6
algae is being tested on growth at different temps. what is the temperature called?
the control variable
the constant variable
7
what's the dependent variable?
blood pressure
< 150
the placebo
120-170
8
the algae has one colony in a sauna, and one that the scientists leave alone. what's the second group called?
the control variable
the constant variable
9
not!!! trait of of functional groups
covalent bonds
often end in -yl
hydrogen bonds
distinctive chemical properties and capable of characteristic reactions
10
what are these?
polymers. (large substances composed of macromolecules)
monomers (simple molecules with 2+ binding sites- theyre in macromolecules)
11
polar molecules do !NOT!
form hydrogen bonds
have an even distribution of electrons
dissolve easily into water
make covalent or ionic bonds
12
functions of carbs
energy production
energy storage
structural component
breakdown of lipids
13
RNA has two ribose groups
True
False
14
polar molecules can pass through the phospholipid bilayer
True
False
15
what is **NOT** a reason water is essential?
super high viscosity (resistance to flow)
adhesion (sticks to others) and cohesion (sticks to itself)
hydrophilic and -phobic ability
temperature buffer (absorbs heat and evaporates)
