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biology micro stuff
biology micro stuff
76 terms
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Answers
1
lysosomes-
contain enzymes that digest materials
are cool
make proteins
idk
2
do cells have a cytoskeleton?
no
y=mx+b
yes
idk
3
genes are made of DNA made of nucleic acids made of-
amino acids
nucleotides
4
active transport has energy input from a cell and enables the cell to move a stuff against its concentration gradient
True
False
5
ph of water
7
123456789000098765432123456789098765432345678909876543234567899999999999999
9
6
causes cells to explode, fewer solutes in a cell
hypertonic
hyotonic
hydrophobic
nontonic
7
what is the unifying concept of biology
cell theory
atom theory
who knows
cells
8
dna and rna are 2 kinds of what
ribosomes
nucleic acids
people
nucleotides
9
how many macromolecules are in a cell
100000000000000000000000000000000000000000000000000000000000000000000000000
1000s
1
1100s
10
what kinds of ER are there?
none
rough
retinum
smooth
11
cells dont use active transport for homeostasis
True
False
12
witch steroid is IMPORTANT
cholesterol
glucose
USSR
sugarrrrrrrr
13
steroids are lipids charictarized by a carbon skeletons with 4 rings
True
False
14
what is the basic unit of life
atoms
ME
the cell theory
cells
15
all cells have membranes
True
False
16
more solutes in a cell
isotonic
hypertonic
hypotonic
ur mom tonic
17
the study of compound with carbon
non organic things
ur an op
organic chemistry
chemistry
18
acidic and basic conditions dont affect organisms
False
True
19
what are the 3 principles of life
all cells came from other cells
the cell is the basic unit of life
all organisms are made of cells
what is life?
20
lipids are hydrophobic because-
they are made of hydrocarbons witch form covalent bonds
they are made of hydrocarbons witch form THE USSR
they are made of hydrocarbons witch form non covalent bonds
they are made of endocarbons witch form non covalent bonds
21
cells contain dna
False
True
22
when water is holding against another piece of water
adhesion
ms mullins hesion
coohesion
cohesion
23
lipids are polymers
True
False
24
carbs arent polysacharrides
True
False
25
what has the max # of hydrogen atoms possible and no double bonds
saturated fatty acids
base fatty acids
unsaturated fatty acids
THE USSR
26
cells that are larger
wierd shape
are ACTUALLY smaller
serve as a bigger function
wrong answer
27
mrna controls protein synthesis
True
False
28
the process of taking materials into the cell
mitosis
endocytosis
encrocytosis
exocytosis
29
ploynucleotides are made of a pentose sugar and a phosphate group
False
True
30
the storage polysacharrides of plants are entirely glucose monomers
False
True
31
a molecule with a lost proton is a-
hydroxide ion
noni
e^(iπ) + 1 = 0
ion
32
vesicles
dont exist
membrane bound organelles that hold materials
membrane bound organelle that digest materials
carry boogers
33
a proteins sturcture determines its-
job in the USSR
literally nothing
function
34
what structural polysaccharide is in the exoskeleton of arthropods
mitosisose
lipids
glucose
chitin
35
most animal fats are unsaturated
True
False
36
enzymes digest starch by-
only B linkages are hydrolized
hydrolozing A linkages but not B linkages
what are linkages
37
proteins account for 30% of the dry mass of cells
False
True
38
phospholipids are a major component of-
lipids
brains
water
cell membranes
39
what is the replication of the cell/cell division
sister syndrome
photosis
meiosis
mitosis
40
a mixture of substances is-
solution
michigan > ohio
compound
me
41
WHAT IS THE MAJOR FUNCTIONS OF FATS
energy storage
energy conservation
THE USSR
energy transport
42
3 of the 4 classes in macro molecules are ploymers
False
True
43
unsaturated fats are oils that are liquid at room temp.
False
True
44
what is the biological medium of the earth
water
wator
waater
waterr
45
whats in phospholipids
2 fatty acids and 3 phosphate groups
not the ussr :(
1 fatty acid and a phosphate group
2 fatty acids and a phosphate group
46
macro molecules r made of what
quademers
monomers
polymers
trimers
47
the key to an atoms characteristics is electron configuration
False
True
48
lipids are macromolecules
True
False
49
ribosomes make protein
True
False
50
prokaryotic cells dont have cytoplasm
True
False
51
a base-
decreases h+
increases h-
increases h+
decreases temperature
52
cell have internal structures
False
True
53
nucleic acids are polymers called-
polynucliotides
nnucleotides
54
the sequence of animo acids determines a proteins structure
True
False
55
surface tension is how difficult it is to break the surface of water
False
True
56
an equal amount of water enters an exits the cell
hypertonic
cystaltonic
hypo-tonic
isotonic
57
protein synthesis in in the-
mitchondria
lipids
nucleus
ribosomes
58
WHEN PHOSPHOLIPIDS ARE ADDED TO WATER, THEY SELF ASSEMBLE INTO A BILAYER, WITH THE HYDROPHOBIC TAILS FACING OUT
True
False
59
cell size isnt limited
True
False
60
the attraction between water and other things that arent water is coolhesion
False
True
61
enzymes are proteins that act as what
a polymer to speed up chemical reactions
a catalyst to slow down chemical reactions
a catalyst to speed up chemical reactions
62
the most important lipids are fats, phospholipids and steroids
True
False
63
animos differ in properties due to differ side chains called-
A groups
R groups
B groups
O groups
64
the consentration of H+ and OH- are equal in pure water
False
True
65
acids and bases modify H- and H+
False
True
66
amino acids are NOT organic molecules that carboxyl and animo groups
True
False
67
specific heat is related to water's hydrogen bonds
True
False
68
what is the structure/function are polysacharrides determined by
the position or glycosidic linkages
nothing
USSR
the sugar monomers are the position of glycosidic linkages
69
buffers dont do anything to h- and h+
True
False
70
a portion of a nucleotide without a phosphate group is a-
THE USSR
nucleotide
phosphone
nucleoside
71
ice floats ontop of water becauseeeeeeeeee-
ice is just that chill
the hydrogen bonds broke up with water
I dont like hydrogen bonds and neither does ice
the hydrogen bonds in ice are less dense
72
1 cal/g/temp celsius
unspecific heat
H E A T
specific heat
73
carbs are-
fuel
building material
transportation
alive
74
passive transport-
requires no energy
requires a bit of energy :/
i am literate
I AM ILLITERATE
75
what are unbranched polymers build from the same set of 20 amino acids
polypeptides
polysaccharides
76
what is the major component of the tough wall in plant cells
cellulose
glucose
carbon
