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Exam 1
What is exocytosis?
What is starch?
Exam 1
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General Biology
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Answers
1
What is starch?
polysaccharide
disaccharide
monosaccharide
2
What is exocytosis?
movement of particles out of cell via engulfing
movement of particles into cell via engulfing
3
What do very acidic or basic pH's do to enzyme reactions?
speed up
stop
slow down
4
What is diffusion?
contraction of molecules
spreading out of molecules into available space
5
What is the structure of a fat?
3 glycerol attached to a fatty acid
fat
3 fatty acid chains attached to glycerol
glycerol
6
What does the nucleus contain?
ribosomes
DNA
proteins
Rough ER
7
The difference between RNA and DNA?
uses A, T, C , G vs. A, U, C, G
Proteins produced
Double vs single helix
8
How do fungi obtain food?
eating other organisms
secrete enzymes and absorb nutrients
photosynthesis
9
What ion does pH measure the amount of?
OH
H
10
Plants & animal cells have:
DNA
mitochondria
chloroplasts
11
what do genes contain?
proteins
maps
organelles
instructions for protein
12
Unsaturated fats have
double bonds
single bonds
13
What are the products of a chemical equation?
What comes apart
What comes out, the result
What goes in, the start
14
Where are proteins made?
Ribosome
Nucleus
Photosynthesis
Golgi
15
What is cohesion (water property)?
how smelly water is
how sticky water is
how fluid water is
how yummy water is
16
With enzymes, what happens if you increase the concentration of the enzyme?
reaction slows down
reaction stops
reaction speeds up
17
A. What are the 4 most common elements that make up living organisms?
Hydrogen, Potassium, Carbon, Oxygen
Nitrogen, Hydrogen, Carbon, Oxygen
Nitrogen, Potassium, Hydrogen, Oxygen
18
What is facilitated diffusion?
uses energy
uses space ships
no energy
uses protein channels
19
The main difference between prokaryote and eukaryote?
DNA
nucleus
membrane bound organelles
enzymes
20
What is active transport?
Requires energy
Does not require energy
21
How does a heterotroph obtain food?
eating other organisms
absorbtion
photosynthesis
22
Name a DNA base:
Oxygen
Leucine
Thymine
Estrogen
23
What is a lysosome?
cell clean up crew
uses enzymes to break stuff down
replicates DNA
makes proteins
24
Does diffusion require energy?
Yes
No
25
what are the reactants of a chemical equation?
what comes apart
what comes out, the result
what goes in, the start
26
What is biology?
the study of the earth
the study of life
27
a. Which subatomic particle determines chemical properties of elements/compounds?
electron
neutron
proton
28
What does the smooth ER produce?
proteins
lipids
29
What is the basic structure of a protein?
chains of sugars
chains of fats
chains of lipids
chains of amino acids
30
What is a disaccharide?
two sugars
many sugars
one sugar
31
How does an autotroph obtain food?
phagocytosis
photosynthesis
absorption
32
What is a saturated fat?
solid at room temp
avocado
butter
liquid at room temp
33
The golgi is similar to:
grocery store
mall
a shipping factory
the white house
34
What is an example of a monosaccharide?
lipids
starch
galactose
glucose
35
Why is ice less dense than water?
molecules move faster
because it's smaller
molecules fly
molecules stop moving
36
What does semi-permeable mean (related to cell membrane)?
everything can pass through
only some things can pass through
nothing can pass through
37
What happens if you an enzyme's shape changes?
it changes it's function
it works better
it doesn't work
38
Animal Cells have:
choloroplast
mitochondria
DNA
cytoskeleton
39
What is an enzyme?
speeds up a reaction
biological catalyst
protein
lipid
40
What is activation energy?
Energy needed to stop reactions
Energy needed to perform reaction
Energy needed to pause reaction
41
Saturated fats have
single bonds
double bonds
42
Plant cells have :
ribosomes
Cell Walls
Chloroplasts
nucleus
43
What is osmosis?
diffusion of water
diffusion of gas
44
What is an unsaturated fat?
avocado
solid at room temp
butter
liquid at room temp
