Scientific Method & Graphing
Chemistry of Life
Cell Structure
Cell Division
DNA Replication & Protein Synthesis
100
Define Independent Variable.
A variable changed by the experimenter; A variable that will affect the dependent variable; The variable found on the x axis of a graph
100
What form do cells store energy in? (what is the molecule called?)
ATP
100
What is passive transport?
movement of molecules that follows a concentration gradient (moves high to low); requires no energy
100
What will the final product of mitosis be?
2 cells identical to the parent (original) cell
100
What happens during DNA replication?
DNA is copied using complementary base pairing
200
What is the vertical axis on a graph called? What variable goes on this axis?
y-axis; dependent variable
200
What do enzymes do in a cell?
lower the activation energy of a reaction; speeds up reactions
200
How do phospholipids in the cell membrane arrange themselves?
Heads are on the outside; Tails are in the middle
200
What is the end product of meiosis?
4 haploid cells that are different that the original cell
200
What is a codon?
group of 3 bases
300
Which step of the scientific method is a testable explanation for a question or problem?
Experiment
300
How does ATP release energy?
the bond between the 2nd and 3rd phosphate breaks
300
What will happen to a cell in a hypotonic solution?
It will swell (get bigger)
300
A cell contains 50 chromosomes. How many chromosomes will be in a gamete of this cell?
25
300
How many bases do you need to code for 3 amino acids?
9
400
What is the difference between a control group and experimental group?
A control group has no changes made to it while the experimental group does
400
What type of bond holds amino acids together?
peptide bond
400
What do eukaryotes contain that prokaryotes do not?
membrane bound organelles; nucleus
400
What is crossing over? What is the result of this process?
Chromosomes become tangled during prophase I in meiosis; Chromosomes become more diverse
400
Translate the following DNA strand: T C G A A
A G C U U
500
Give an example of a hypothesis.
Must be stated as an If... Then... statement
500
Give an example of each of the 4 biological molecule. Monomers do not count
Carb- sugar lipid- fat, wax, oil protein- muscle, enzyme, etc Nucleic Acid- DNA, RNA
500
What 2 organelles are responsible energy production?
Chloroplast; Mitochondria
500
What structure pulls chromosomes apart during anaphase?
Spindle Fibers
500
Describe how you read an amino acid/codon chart.
Find the row with with the first letter of the codon, move to the column that has the letter of the second codon, within that box find the row that has the third letter of the codon
M
e
n
u