TEAS TEST PART 2 Flashcards
(68 cards)
What are the steps of the scientific method?
Ask a question, do background research, construct hypothesis, test with experiment, analyze data and draw conclusions, and report results.
Independent Variable
What changes
Dependent variable
what is measured
Controlled variable
What is kept the same
Empirical Evidence
Data gathered through observation or experimentation
Prokaryotic
No nucleus (bacteria)
Eukaryotic
has nucleus (plant & animal cells)
Mitochondria
powerhouse of the cell, produces energy (ATP)
nucleus
control center, contains DNA
ribosomes
makes proteins
golgi apparatus
packages and ships proteins
Endoplasmic Reticulum (ER)
Smooth (makes lipids), Rough (makes proteins)
Lysosomes
breaks down waste
Chloroplasts
Photosynthesis (plant cells)
DNA
double helix; bases are A-T and G-C
Gene
Section of DNA that codes for a trait
Chromosome
coiled DNA, humans have 46 (23 pairs)
allele
version of a gene
dominant allele
expressed even with one copy (A)
recessive allele
needs two copies to be expressed (a)
genotype
genetic makeup (Aa)
Phenotype
Physical expression (brown eyes)
Respiration
converts glucose to ATP (mitochondria). opposite in photosynthesis
atom
basic unit of matter