What are the primary components of the plasma membrane, and what are their respective roles in cellular function?
Phospholipid Bilayer- makes the membrane
transfer proteins- allows specific things in/out
What does the golgi apparatus do
processes and packages proteins into vesicles
What does the mitochondria do
Mitochondria: energy storage
What is a Lysosome
membrane enclosed pockets of acidity, breaks down debris/foregin substances
Ribosomes
made of rRNA, they make proteins in the cells
what does a Nucleus do
contains the bodys genetic material, the DNA, which regulates all cell structure and function
What does a Vesicle do
hold proteins and wastes products that are being carried to the cell wall to be released
How does the sodium-potassium pump contribute to cellular homeostasis?
regulates the amount of K+ and Na in a cell–> pH
What are glycoproteins, and why are they important in the immune response?
glycoprotein is a specific carb attached to cells that are surface markers–> AKA antigen
What is the difference between aerobic and anaerobic metabolism in terms of ATP production?
areobic: with O2
Anaerobic: without O2
How can free radicals damage mitochondria, and what are the potential consequences of such damage?
by making them unstable, free radicals takes molecules to stablize themselves leaving others unstable
Define etiology and explain its importance in understanding disease processes.
Etiology is the original cause of something; the cause of cellular alteration or disease
What are the main types of cellular adaptation, and how do they differ from each other (e.g., atrophy vs. hypertrophy)?
Atrophy: cell gets smaller
Hypertrophy: cel gets larger
Dysplasia: a change in cell growth (cell loses size, shape, organization)
Hyperplasia: increase in number of cells in organ
Metaplasia: replacing one type of cell for another type
Neoplasia: uncontrolled cell growth/cancer
Define: Dysplasia
a change in cell growth (cell loses size, shape, organization)
Define: Metaplasia
replacing one type of cell for another type
Define: Hyperplasia
increase in number of cells in organ
Define: Neoplasia
uncontrolled cell growth/cancer
What are pathognomonic changes, and how do they indicate disease?
Describe common causes of cellular injury and provide examples of each type.
hypoxia (Lack of O2)
Trauma, temp, radiation
genetic defects
aging
infections
Compare and contrast apoptosis and necrosis in terms of process and effects on the body.
Apoptosis: NORMAL, programmed cell death (cell bursts) that eliminates cells that are bleh
Necrosis: ABNORMAL cell death, from injury, followed by gangrene (rotting) due to infection
What are alleles, and how do they influence phenotypic traits?
Allele- parts of a gene at a specific locus
Influence by how they interact or are expressed (Dom vs Recessive)
Explain the difference between dominant and recessive inheritance patterns with examples.
Dom: Shows up with just one copy of the gene (Brown/Bb)
Recessive: Need two copies of the gene to show up (Blue/b)
Mendels Law
What is BNP
B-type naturetic peptide; hormone released by the ventricles when the ventricle walls stretch too much due to too much fluid/blood in the heart