Prentice Hall Biology Chapter 7 Vocabulary

it is polar tail is non polar toward interior of membrane forms a true barrier that separates cell from its boundaries and repels water and most polar molecules – Why is the plasma membrane said to be selectively permeable? How does the plasma membrane control what goes in and out of the cell?
chromosomes – A single piece of DNA and proteins that contains genes. humans have 23 pairs
Telophase – the final phase of mitosis in which the chromatids completely separate and the cytoplasm begins to divide
substitution mutation – one base pair is substituted or replaced with another base pair
Function of lipids – Waterproofing
Insulation
Steroids & structure
Energy storage
Cushion
umbilical cord – The membrane-covered bundle of blood vessels that connects a baby to the placenta.
Hypothesis – an explanation based on known facts; a possible answer to a testable question; a statement that can be tested by additional observation or experimentation; follows the format "If the IV (changes), then the DV (changes) because…"
natural selection – A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Scoto bacteria – Darkness bacteria- Class in Phylum Gracilicutes that like darkness and are heterotrophic, not photosynthetic
Confocal microscopy improves on immunofluorescence in that it:
foliose – A flat leafy type of lichen.
unity – Features that all living things have in common
Observation – Process of noticing and describing events or processes in a careful, orderly way
triglyceride – three fatty acids and a glycerol (building blocks of lipids)
RNA processing – the modification of an initial mRNA transcript to create a mature, usable transcript
hermaphroditism – A condition in which an individual has both female and male gonads and functions as both a male and female in sexual reproduction by producing both sperm and eggs.
Cоnfоcаl micrоscopy improves on immunofluorescence in thаt it:
Classification of Bacteria with no cell walls – They won't take up gram stain at all, not pink or blue and belong Phylum Tenericutes and all are in class Mollicutes (remember soft like tender mollusks )
Tidal Volume – Volume if air taken in or out with each normal inhalation or exhalation
Dehydration Process – A chemical reaction in which molecules combine by removing water.
Pathogen – A disease-causing particle (virus, e.g.) or organism (bacteria, fungi, etc.).

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