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101
stuff from tests
45
Biology
Undergraduate 1
05/12/2010

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Cards

Term
what is not a complex carbohydrate?
Definition
fructose
Term
Why is rough Endoplasmic Recticulum rough, and therefore a central part of protein processing?
Definition
It has ribosomes embedded in it.
Term
Polar molecules do not travel easily through the plasma membrane because the
Definition
hydrophobic tails of the fatty acids of the phospholipids form the core of the plasma membrane.
Term
The property of water allows fish to survive in a frozen pond because
Definition
water is less dense when it floats.
Term
Forms of passive transport include
Definition
simple diffusion and facilitated diffusion
Term
What do plant cells have that animal cells don’t have?
Definition
Cell wall, chloroplasts, and central vacuole
Term
For diffusion to take place, there must always be
Definition
concentration gradient
Term
Active transport
Definition
involves protein channels and requires energy, goes against concentration gradient, and sodium-potassium pump is an example.
Term
True or False? Hydrophobic substances dissolve in water
Definition
false
Term
When an antibiotic blocks the function of ribosomes in a cell, what is ultimately blocked?
Definition
Protein synthesis
Term
What is not a universal characteristic of plants?
Definition
Cells without cell walls
Term
Bacteria can survive where animals cannot because
Definition
they can metabolize things that animals cannot; some are autotrophs.
Term
What is the correct order of the scientific method?
Definition
Observation, hypothesis, experiment, conclusion
Term
Why is carbon one of the most important elements?
Definition
It can form 4 covelent bonds.
Term
Which pair is most alike?
Definition
Mitochondria and chloroplasts
Term
Which would diffuse through the plasma membrane easiest?
Definition
Hydrophilic molecules
Term
Which group is eukaryotic?
Definition
Protists
Term
What is true of matter?
Definition
It has mass and occupies space; it is made of elements.
Term
What is not a characteristic of life?
Definition
Being able to breathe oxygen
Term
Which would give up OH- ions in a solution?
Definition
Ammonia, pH 11.5
Term
The glycocalyx is made of
Definition
sugars
Term
True or False? Cytoplasm fills the cytosol
Definition
false
Term
A covalent bond is
Definition
strong; a bond shared between two atoms.
Term
Saturated fats are saturated with
Definition
nitrogen
Term
Osmosis involves
Definition
water, semi-permeable membrane, and concentration gradient
Term
A substance with specific properties that cannot be broken down or converted into another substance is
Definition
an element
Term
All of water’s biological importance comes from
Definition
its ability to make hydrogen bonds
Term
Prokaryotic cells include
Definition
the archaea and bacteria, and they have no nucleus
Term
The smallest living entity is the
Definition
cell
Term
True or False? Unsaturated fats are associated with increased amounts of cholesterol in the blood.
Definition
false
Term
Advantages of an exoskeleton include:
Definition
protection
Term
Triglycerides are made of:
Definition
glycerol and fatty acids
Term
Which is not a part of the cell theory?
Definition
Cells can be made from a collection of organelles.
Term
Which is not true of hydrogen bonding?
Definition
It is a type of ionic bonding.
Term
When a cell needs to get something large inside, which method is not used
Definition
Exocytosis
Term
The primary function of a cell is to
Definition
make proteins
Term
True or False? All of the following are uses of lipids: storage, insulation, fuel, communication.
Definition
false
Term
What is the most likely explanation for organelles that have their own DNA?
Definition
Those organelles were once bacteria that had an endosymbiotic relationship with ancient cells.
Term
Those organelles were once bacteria that had an endosymbiotic relationship with ancient cells.
Definition
Decomposes other living material.
Term
Proteins are made of
Definition
amino acids
Term
Which is a flat plant, and when viewed under the microscope is a layering of photosynthesizing bacteria and fungi?
Definition
lichen
Term
Viruses are not living because
Definition
they must use other cells to make more viruses
Term
Which maintains the cell’s shape, anchors organelles and helps a cell move?
Definition
cytoskeleton
Term
head of the phospholipid is ______, and the tail is______
Definition
hydrophilic, hydrophobic
Term
Animal cells burst, but plant cells do not. Why?
Definition
Solution on the outside of the cell is hypotonic compared to the inside of the cell; the plant cell has a cell wall.
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