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18 Cards in this Set

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combination
a chemical combination of elements whose proportions do not vary
Two elements hold together by?
nonpolar covalent bonds
Which of the following bonds is most easily broken?
ionic bond
hydrogen bond
covalent bond
all are unbreakable
hydrogen
The cytoplasm of adjacent plant cells is connected by tiny channels called
plasmodesmata
Which of the following is a type of vesicle produced by the Golgi body?
lysosome
ribosome
polysome
nucleosome
lysosome
Which of the following would not be found in one of your liver cells?
peroxisomes
mitochondria
a central vacuole
ribosomes
c vacuole
A bacterium's DNA is found in an irregularly shaped region called the
nucleus
nucleolus
nucleoid
solenoid
nucleoid
The ______ imparts shape and internal organization to all eukaryotic cells.
endoplasmic reticulum
nucleus
cytoskeleton
cell wall
cytoskeleton
Secretory cells, such as those of the pancreas, are unusually rich in
endoplasmic reticulum
lysosomes
chromoplasts
mitochondria
endo ret
. In terms of their size and biochemistry, ______ resemble photosynthetic bacteria.
ribosomes
mitochondria
chloroplasts
lysosomes
chloroplasts
4 characteristics of life
obtain and use energy to give off metabolisism
dna - grow and reproduction
1 or more cells
stimulus and response to change homeostasis
4 steps of protein structure
1. aa + aa + aa
2. ~~~~~~~~ b/c hydrogen bonds
3. `~`~`~` b/c r groups interact
4. ``~``~~``~~ b/c 2,3 levels hook up.
foramen

mandible

maxilla

orbit

nare

diastema
hole

lower jaw

upper jaw

eye socket

nostril

gap
cell membrane consits of...
phospholipid
cholesterol
protien
sats diff unsat
snuggle
straight
single bonded
ex: squirrel
solid
5 S
define ph and 2 ex of acid and base
consentration of hydrogen ions

acids - red (acid, lemon juice, oj)
bases - blue (oven cleaner, nair)

7 being nuetral (water)
hydrophiiiilic hydrophooobic
luvs water hates water