Honors Biology Midterm
Card Set Information
Honors Biology Midterm
Five Steps of the Scientific Method
1. Define the problem
2. Form a hypothesis
4. Observe and Record Data
5. Draw Conclusions
What is a control and why is it necessary in a controlled experiment?
Is used as a comparison to the experimental group
SI Unit of mass
SI Unit of volume
SI Unit of length
What is a variable?
2 factors being tested, independent and dependent
What lab equipment would you use to measure mass?
To measure volume of a liquid?
Explanation:A graduated cylinder holds water and has measurements and ways to measure volume.
What do the numbers on a metric ruler represent?
Explanation:It clearly says on a ruler that it is centimeters
What are the tiny lines between the numbers on the ruler?
How many small lines are in each centimeter?
Mm are the tiny lines between the numbers on the ruler
10 small lines are in each centimeter
How many micrometers are there in a millimeter?
(a) 5micrometers= 1mm
What happens to the image of the upright letter R when placed under a microscope?
It flipped upside down and becomes backwards
Label the microscope below
8.revolving nose piece
What are the pH of an acid, base, and neutral?
:Higher than 7
any compound that increase the number of hydronium ions when dissolved in water.
any compound that increase # of hydroxide ions when dissolved in water
Define dehydration synthesis.
removal of water to make a molecule bond
the splitting of a molecule by reaction with water
What types of bonds between water molecules give water its unique "sticky" property?
Explanation:the weak attraction between hydrogen atoms and oxygen
Basic unit of matter
when an atom is charged
2 atoms with the same atomic number have different mass
Smallest units of a substance that still retain the properties of that substance
Define and compare and contrast enzyme and catalyst
catalyst speed reactions by lowering activation energy
enzymes are catalyst made of protein in living organisms
List 5 characteristics of enzymes
1.effected by temp.
2.effected by pH
3.can be used over
2 theories of biology
cell and evolution
Compare and contrast quantitative and qualitative
: using your senses
Compare and contrast prokaryotic and eukaryotic cell
eukaryotic cell is complex, have a nucleus and other organelles
The name of the model that describes the plasma membrane
What is the plasma membrane comprised of?
lipids, protein channels and sugar
Facilitated diffusion occurs in which part of a plasma membrane
Which organelles are present in plant but not animal cells?
cell wall and chloroplast
Which organelle is unique to animal cells?
Where does respiration occur in animal and plant cells?
Why are cells so small?
surface areas to volume
made of DNA
contains respiratory enzymes, inner membrane is folded to increase surface area and produces ATP
contains photosynthetic enzymes
Place the following in order:
movement of molecules from greater to lesser concentration
movement against concentration gradient
movement of water (hypo, hyper, iso)
Cells can shrink, swell or burst due to the concentration gradient of what molecule?
build molecule (photosynthesis)
breakdown (cell respiration)
release heat (cell respiration)
uses energy (photosynthesis)
aerobic respiration (cellular respiration)
anaerobic fermentation (glycolysis)
What are the reactants of photosynthesis?
Light reactions and calvin cycle
What are the products of respiration?
no sun (ATP)
What is adenosine triphosphate?
What is its function?
Universal energy molecule
What processes produce ATP as an end product?
How many ATPs are produced from fermentation, respiration, and photosynthesis?
(a)ferm: 6, resp: 10, photo: 20
(b)ferm: 2, resp: 38, photo: 0
(c)ferm: 1, resp: 60, photo: 10
What makes chlorphyll green?
Copy of DNA
An ordered of sequence of events in the life of 2 dividing eukaryotic cell composed mitosis and interphase growth and DNA synthesis phases
Which part of the cell is the longest?
function of hydrochloric acid
helps turn solid food into a liquid that makes digestion possible
Breakdown of starch into sugar
A trait that helps an organism survive in its environment
change in DNA to traits raw material for evolution (some helpful/some harmful)
process in which the environment determines if an organism will/will not survive and reproduce
change in a population overtime
Formation of species from an existing species
Define Geographical Isolation.
population divided by barrier that prevents intermating, geographical, reproducive