Chemistry of Life
Hydrogen bonds between water molecules result in?
Cohesion, adhesion and surface tension
Ribosomes are found in?
How do cells communicate?
Through direct contact with other cells
How many times does cells go through meiosis?
2
What are the 4 nitrogen bases used in DNA?
Nitrogen is used to build?
Proteins and nucleic acids
How does vacuoles aid in helping plants?
Retention of water for turgor pressure
During meiosis 1, cells go through?
crossing over
What are the 4 nitrogen bases used in RNA?
Adenine, Cytosine, Uracil, Guanine
Hydrolysis and dehydration synthesis are used to?
Cell membranes consists of a?
Structurcal framework of phospholipid molecules
Changes in signal transduction pathways can?
Alter cellular response
DNA and RNA are?
What direction is DNA synthesized?
5' to 3'
What is in nucleic acids?
Biological information
The cell membrane separates the?
Internal and external environment of the cell
Organisms use feedback mechanisms to?
Maintain their internal environments and respond to changes
How are meiosis and mitosis alike?
Chromosomes both separate
What unwinds the DNA strands?
Helicase
What are the three components in DNA and RNA?
Sugar, phosphate group, and a nitrogenous base
Passive transport is the net movement of molecules from?
High concentration to Low concentration without energy
What are the stages of the cell cycle?
Fertilization involves the fusion of?
2 haploid gametes
Changes in the genotype can result in changes to the?
Phenotype