Test (A)
Friday! (B)
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Test (D)
Friday! (E)
100
Recall the chain of complexity that starts with atoms and ends with ecosystems.
What is Atoms-small molecules-macromolecules-cells-tissues-organs-organ systems-individuals-population-communities-ecosytems
100
Draw a water molecule and label its charges and its bonds
oxygen: slightly (-) hydrogen: slightly (+) these slight charged electrons attract each other
100
Name the four macromolecules.
What is proteins, carbohydrates, fats and lipids, and nucleic acids (DNA and RNA).
100
What are the three magnification scopes?
What is 4x, 10x, 40x
100
What are DNA's base pairing rules?
What is A-T G-C
200
What is the difference between hydrophobic and hydrophilic?
Hydrophobic: water avoiding molecules Hydrophilic: water liking molecules that mix well with water
200
Draw and label a phospholipid bilayer.
Labels should include: hydrophobic hydrophilic phosphate group lipid chains
200
Name two types of steriods.
What is testosterone, estrogen, progesterone, cholesterol
200
The ocular (eye piece) lens of a compound microscope magnifies images how many times?
What is 10x.
200
What are RNA's base pairing rules?
What is A-U G-C
300
Describe Louis Pasteur's Experiment. What did he discover?
Under current conditions, life comes from pre-existing life
300
Define homeostasis.
What is constant conditions (expectable range) example humans average 98.6 degrees F below or above could result in death
300
Name four types of Carbohydrates.
What is Cellulose Starch Glycogen Chitin
300
With a microscope, as you move the slide towards you, the image moves ___________.
What is away from you
300
Name three differences between RNA and DNA.
What is DNA: double helix, sugar deoxyribose, bases A-T, G-C RNA: single stranded, sugar ribose, bases A-U, G-C
400
Describe Redi's experiment. What did he discover?
What is under certain conditions, life comes from pre-existing life.
400
What are the three domains of life?
What is Bacteria, Archaea( prokaryotic cells), and Eukarya (eukaryotic cells)
400
Describe the four types of Carbohydrates. What do they look like and are they for animals or plants?
What is Cellulose- long unbranched chains of sugar, in cell walls of plants, indigestible by animals Starch- long unbranched and branched chains of sugar, major energy storage molecule in plants Glycogen- highly branched chains of sugar, short tern energy storage molecule in animals in liver Chitin- form exoskeletons in Arthropods, ex: lobster
400
Define a dependent variable vs. an independent variable.
What is independent variable: variable that is changed in experiment group dependent variable: response to change in independent variable (result)
400
What are the three types of Lipids and Fats?
What is Saturated Fatty Acids Unsaturated Fatty Acids Trans Fat
500
Name and describe the seven characteristics of life.
What is reproduction (sexual/asexual) use energy acquire nutrients composed of 1 or more cells evolve have genetic info (DNA/RNA) maintain homeostasis needs marcromolcules
500
What are the five properties of water?
What is 1)solid form is less dense than liquid form 2)high specific heat 3)cohesion and surface tension 4)good solvent 5)a weak acid and a weak base simultaneously
500
Describe what the three types of Lipids and Fats look like.
What is Saturated Fatty Acid- long straight chains of carbon saturated (covered with) hydrogens Unsaturated Fatty Acid- a least one place in carbon chain where carbons are double-bounded, which causes the chain to bend Trans Fat- artificially straightening unsaturated fatty acids
500
Describe the scientific method.
What is -make an observation -as a question -make a hypothesis -create/design experiment to test hypothesis -perform the experiment -collect data from experiment -analyze that data -look back at hypothesis and reflect whether results supported or didn't support your hypothesis
500
Name and describe the four structures of proteins.
What is -Primary structure -Secondary structure: helix, B-Pleated Sheet -Tertiary Structure -Quaternary Structure
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