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Honors Midterm Review
The bursting of a hypotonic cell is called...
Golgi Body does...
Honors Midterm Review
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1
Golgi Body does...
Packages proteins from E.R and distributes them to other parts of the cell.
Makes it possible for the cell to duplicate.
Makes the cell run smoothly.
That's not part of a cell.
2
The bursting of a hypotonic cell is called...
Lyse
Crenation
Circadium
Kinesis
3
How do buffers work?
changes other elements to hydroxides (OH-)
releases and takes carbons (C) to maintain the pH
changes hydroxides (OH-) to maintain the pH
releases and takes hydrogens (H) to maintain the pH
4
Why is this noble gas non-reactive?
All of its electron levels are full
It has an equal number of protons and electrons
It is a base not an acid
The most common isotope has 21 neutrons
5
What are the 2 functional groups in amino acids?
a phosphorus and amino group
a phosphorous and carboxyl group
carboxyl group and amino group
simple sugar and a nitrogen base
6
What is the atomic number?
The number of electrons in the electron cloud
The number of neutrons in the nucleus
The number of protons in the electron cloud
the number of protons in the nucleus
7
What type of chemical bonds are found between the oxygen and hydrogen in a water molecule?
Ionic
Hydrogen
Polar covalent
Non-polar covalent
8
Which process uses proteins to move molecules against a concentration gradient?
active transport
endocytosis
passive transport
phagocytosis
9
Dehydration synthesis...
takes two molecules and makes them one.
takes one molecule and splits it into two.
adds hydrogen and oxygen atoms to the molecule(s)
makes a long polymer a shorter polymer
10
DNA Stands for...
deoxyribonucleic acid
ribonucleic acid,
deoxyribonuciatic acid
Life Juice
11
Engulfing of bacteria by white blood cells is an example of
Exocytosis
Phagocytosis
Osmosis
Pinocytosis
12
Electron Microscope
Optical instrument for making distant objects appear larger
A telescope launched into orbit around the Earth in 1990
Consists of two telescopes side-by-side
Microscope that uses electron beams instead of visible light
13
What bonds exist between water molecule
Covalent
Hydrogen bonds
pie bond
Ionic
14
Which of these is NOT a lipid?
Steroid
Fats
Aren't these all lipids?
Triglyceride
15
How many electrons are in this element?
84
209
125
208
16
What is the difference between a theory and a hypothesis?
Theory:the powerhouse of the cell Hypothesis:Mitochondria
Theory:Well tested idea Hypothesis:testable, possible
Theory:Well tested idea Hypothesis:good idea
Theory:testable, possible Hypothesis:Well tested idea
17
What is a controlled experiment?
An experiment that compares a control group with an experimental group.
An experiment that tests one variable at a time.
All of the above.
A form of experiment.
18
What is the Calvin cycle?
Converts sunlight into usable chemical energy
The watery space surrounding the thylakoids
Uses chemical energy to rearrange carbon dioxide molecules into a Glucose m
19
The contractile vacuole is used to:
help with reproduction.
remove excess water so the organism doesn’t burst.
store food.
help the organism make it’sown food.
20
Rough ER
Makes proteins for cells
Center of nucleolus/Where RNA is found
Filled with digestive enzymes/"Garbageman of cell"
21
which bond transfers electrons?
covalent
man and dog
ionic
double
22
How do you calculate the mass of an atom?
add the electrons and the protons
subtract the electrons from the protons
add the neutrons and the protons
Subtract the #protons from the #neutrons
23
What is the difference between prokaryotic cells and eukaryotic cells?
Only Euk have membrane bound organelles
Only prok have cytoplasm.
Only euk has a cell membrane
Only Prok have membrane bound organelles
24
Define Covalent Bonds:
Bonds in which molecules share valence electrons.
Bonds in which atoms transfer valence electrons.
Bonds in which molecules transfer valence electrons.
Bonds in which atoms share valence electrons.
25
Hydrophobic substances are
non-polar and attract water
polar and attract water
polar and repel water
non-polar and repel water
26
What organelle do animal cells have that plant cells lack?
Mitochondria
Centriole
Lysosome
Chloroplast
27
A pH of 4 is _______ more acidic than pH 6.
ten
100
two
28
All reptiles
are predators
have attached-scales
are cold-blooded
are invertabrates
29
plant and animal/eukaryotic: what is the function of a lysosome?
stores energy
structure
modifies and packages
inside cell digestion
30
which carbohydrate is used in the liver for energy storage
glucose
glycerol
glycogen
starch
31
What is a Compound?
A pure substance made of more than 1 compound.
A substance made of 2 or more elements.
A Compound
An element made of 2 or more substances.
32
what is cohesion?
the attraction of water to magnets
the attraction of water to itself
capillary action
attraction of water to other things
33
The functions of cytoskeleton are ?
Moving cell
Providing cell shape; movement
Storing foods
34
Prokaryotic cells have a nucleoid in which _____ is stored.
waste
RNA
DNA
food
35
This
organelle
has a double membrane and internal folds called cristae.
Lysosome
Golgi apparatus
Nucleus
Mitochondria
36
What is a hypothesis
an opinion
a fact
a statement
a possible explanation
37
What is a Smooth Endoplasmic Reticulum?
An organelle that makes lipids.
Lebron
An organalle that helps make protiens
complex of vesicle within the cytoplasm of most cells
38
What are the four most common elements found in organic biomolecules?
Calcium, Carbon, Oxygen, Hydrogen
Carbon, Hydrogen, Oxygen, Nitrogen
Sulfur, Calcium, Potassium, Iron
Carbon, Sulfur, Oxygen, Hydrogen
39
What is the order of biological hierarchy from smallest to largest?
organelle, cell, tissue, organ, organ system, organism
organelle, tissue, cell, organ, organ system, organism
cell, organelle, tissue, organ, organ system, organism
cell, organelle, organism, organ, orgran system, tissue
40
what is the pH scale?
indicates the concentration of hydrogen ions.
indicates your height.
indicates your weight.
