Enzymes, Cellular Energy, Maintaining Homeostasis
speed up chemical reactions
What does a virus require to replicate?
a host
Mutation
What is Natural Selection?
organisms best suited for their environment will survive and pass on favorable genes to the next generation; survival of the fittest.
What does the Xylem do?
Transports water up through the plant
What is Active Transport?
against the concentration gradient, requires energy
Transcribe this DNA Strand to RNA
ATG CCC GAC
UAC GGG CUG
What is a phenotype?
physical apperance
What is a adaptation?
an inherited trait that increases an organism’s chance of survival
What is Phototropism?
response to light
Give the Full Equation for Photsynthesis
6CO2 + 6H2O + Light → C6H12O6 + 6O2
What does the sequence of nucleotides determine?
• Determines traits
• Determines the codes for proteins
• Instructions for organisms’ traits
In pea plants, yellow seeds are dominant and green seeds are recessive. Cross two heterozygous individuals (Yy).
Parental cross= Yy X Yy
Genotypes= 25% homozygous dominant; 50% heterozygous; 25% homozygous recessive
Phenotypes= 75% yellow seeds, 25% green seeds
Name the 4 Biomolecules and their function
Carbohydrates: Short Term Energy Storage
Lipids: Long Term Energy Storage
Proteins: growth, transport, and catalysts (enzymes)
Nucleic Acids : Store and transmit genetic information for making new cells as is passed from parent to offspring
Nutrients from the stomach are carried through the blood to each cell of the body.
What two body systems are being used?
Digestive and Circulatory
Give the Full Equation for Cellular Respiration
C6H12O6 + 6O2→ 6CO2 + 6H2O + ATP
What is the purpose of the Cell Cycle?
To produce two new daughter cells (clones) that are identical to the parent cell. In a mitosis cell cycle, the parent cell is diploid (2N) and the daughter cells produced are diploid (2N)
What would be the mRNA codon for this amino acid sequence? (see chart)
AUG-CCU-GUC-UAG
Met-Pro-Val-Stop
What are the 3 Evidences of Common Ancestry?
Fossil Record, Biogeography, Homology
The brain sends signals to glands which triggers hormones to be released.
What two body systems are being used?
Nervous and Endocrine
How does the cell membrane regulate homeostasis?
by deciding what comes in and out of a cell.
List the phases of Mitosis in order
Interphase is technically before Mitosis, preps for it.
Cytokinesis occurs afterwards
GG=gray hair, Gg=gray hair, gg=white hair
BB= black eyes, Bb=black eyes, bb= red eyes
A male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb.
How many out of 16 will have grey fur and black eyes?
9
Name the 5 Mechanisms of Evolution
Genetic Drift, Gene Flow, Mutation, Selective Mating, Natural Selection
produces pollen