Biochemistry
The Cell
DNA/genetics
Ecology and Evolution
Misc
100
What are the building blocks of proteins?
animo acids
100
What happens when ATP looses a phosphate group and creates ADP?
Energy is released - ready to be used for different cell processes
100
What are the complimentary base pairs in DNA?
A-T
C-G
100
photosynthesis, cell respiration, decomposition, and combustion are all parts of what cycle?
carbon cycle
100
What is the maintenance of a stable internal environment? ex temperature and pH
homeostasis
200
Where are proteins made?
ribosome
200
Cell membrane is made of phospholipids and protein channels - the protein channels are used during active transport while the phospholipids allows passive transport.
What type of transport is osmosis and what material is transported during this mode?
Osmosis is passive transport
Moves only water - follows the high concentration of solutes such as salt
200
What happens during transcription?
mRNA is made from DNA in the nucleus
200
A population of birds live on an island where seeds are their primary food source. Birds with smaller beaks can eat small seeds more easily and birds with larger beaks can eat large seeds more easily.
A fungus destroys the plants that make large seeds, leaving only the small seeds as food.
What will occur to the bird populations?
Natural selection = the birds with the larger beaks with either die off because of lack of food or adapt. The birds with the smaller beaks will thrive.
200
A student wants to see the effect of how much water given to a certain plant species will impact its growth.
What is the independent and dependent variable in this experiment?
Independent - Amount of water
Dependent - Plant growth
300
What monomer is made of a phosphate group, a sugar, and a base?
Nucleotide
300
What is the main difference between prokaryotes and eukaryotes?
Eukaryotes have membrane bound organelles and a nucleus, prokaryotic cells do not
300
What molecule supplies the amino acids during translation?
tRNA
300
Draw an energy pyramid showing the 10% energy rule AND label with the trophic levels
300
What is the chemical reaction for aerobic cell respiration?
O2 + C6H12O6 --> ATP + CO2 + H2O
400
Describe what creates the hydrogen bond in water molecules.
The negative charge of oxygen binds with the positive charge of hydrogen on an adjacent molecule.
400
What are three things that a plant cell has and an animal cell does not have?
1. Cell Wall
2. Chloroplast
3. Large Vacuole
- Chlorophyll
400
What are the 3 steps in DNA replication?
1. DNA unwinds & Helicase unzips
2. 2 original strands create 2 new strands, DNA Polymerase brings in the bases for the new strands
3. Ligase seals the hydrogen bonds making the 2 semi-conservative DNA strands
400
Name three pieces of evidence for evolution
comparative embryology
fossils
comparative anatomy
biogeography
molecular genetics (DNA)
400
What is the name and function of the male reproductive part on a plant?
Stamen - produces the pollen on the anther
500
How do enzymes affect the rate of a reaction? (2 ways)
Speeds up a reaction
Lowers the activation energy
500
Stages of Meiosis out of order - place them in order using the numbers.
3, 4, 1, 6, 7, 5, 2, 8
500
A female carrier for colorblindness has children with a normal male . What is the probability their son will have colorblindness?
Colorblindness is on the X Chromosome
Colorblindness is recessive.
25 %
500
Due to hunting, the population of Northern elephant seals was reduced to 20 individuals at the end of the 19th century. Since then, their population has rebounded to over 30,000.
What process describes the change in the variation of alleles found in the population in this scenario?
Genetic Drift - genetic variation decreased when reduced to 20 and only those genes left are found in the new 30,000 population.
500
What is the independent and dependent variable in the graph?
Independent - Different activity/exercise
Dependent - Heart rate