Mitosis and Meiosis
What are the four stages of mitosis?
prophase, metaphase, anaphase, telophase
What is the relationship between the formulas in cellular respiration and photosynthesis?
They are opposites.
What is a chemical reaction?
process that changes one set of chemicals into another
What is a species?
a group of individuals that can interbreed
What are the three parts of a nucleotide?
phosphate group, pentose sugar, nitrogenous base
What is the purpose of the S phase in the cell cycle?
replicate DNA
What is the formula for photosynthesis and cellular respiration?
P: 6H2O + 6CO2 = C6H12O2 + 6O2
C: 6O2 + C6H12O6 = 6CO2 + 6H2O
What elements are in nucleic acids?
carbon, hydrogen, oxygen, phosphorus
What is the function of decomposers?
obtain energy from dead organisms and recycle them
adenine with thymine
guanine and cytosine
What are the products of mitosis and meiosis?
Meiosis: 4 haploid cells
Mitosis: 2 diploid cells
What is the three letter combination for ENERGY
ATP
What kinds of molecules are monosaccharides and polysaccharides and what are examples?
carbohydrates
M: glucose
P: glycogen
Biotic: living factors- organisms, predation, etc.
Abiotic: nonliving factors- sunlight, soil acidity, etc.
What are three differences between DNA and RNA?
1. Ribose instead of deoxyribose
2. Uracil instead of thymine
3. single stranded
when sperm and egg come together to form a diploid cell known as a zygote
What is the structure of a lipid?
three fatty acid tails with carbon chains with a glycerol backbone
What is happening with genes during evolution?
Organism are getting mutations with prove to be advantageous and lots of organisms receive it.
What is the difference between a gene and DNA?
a gene codes for something and is a long strand of DNA where the rest of DNA codes for nothing
What is happening in each phase: prophase, metaphase, anaphase, and telophase?
P: chromosomes condense
M: chromosomes move to the middle and spindles are formed
A: chromosomes are split and pulled to opposite sides of the cell
T: cell starts to split
What are the 8 levels of classification?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
What are the three steps of DNA replication?
1) DNA helicase unwinds DNA creating a replication fork.
2) DNA polymerase attaches the correct nucleotide to the DNA by the base-pairing rule.
3) The new strand breaks off.