Unit 1
What is the dependent variable in an experiment?
what is being measured
What is the role of ribosomes in a cell?
Makes proteins
What is a food chain?
trace single flow of energy, shows tropic levels
What is DNA replication?
makes an identical copy of DNA
Who is the father of evolution?
Charles Darwin
Why can't oil and water mix?
Hydrophobic and non polar
What is the purpose of a cell wall?
protect and maintain shape
What is the equation for photosynthesis?
6H2O + 6CO2 --> C6H12O6 + 6O2
What role does mRNA play in protein synthesis?
Delivers DNA instructions for making proteins to the ribosome
Hippopotamus amphibius is an example of what?
binomial nomenclature
Name the four major types of macromolecules
carbs, proteins, lipids, nucleic acid
Define osmosis.
diffusion of water across cell membrane
Explain the role of ATP in cellular processes
Carries and stores energy for cell functions
What can cause a mutation?
Mutagens, Mistakes in DNA replication, Viruses
How does variation contribute to natural selection?
different physical traits of organisms
What macromolcule will digest 1st
carbs
What happens to a cell in a hypotonic solution?
water is lower than cells cytoplasm, moves out of cell
What is glycolysis?
breakdown of glucose
What is the probability of obtaining a homozygous recessive trait in a monohybrid cross? (Hh x hh)
50%
Name one common pattern of evolution
Speciation, Extinction, gradualism, punctuated equilibrium, divergent, convergent, coevolution
what macromolecule will never be used?
nucleic acid
What is the purpose of mitosis in organisms?
grow and repair
What are the main products of the Krebs cycle?
2 ATP and CO2
What do males have to inherit for a recessive trait to be expressed?
1 recessive allele
Give an example of homologous structures in different species
whale fin, human arm