Block 1 Flashcards
Extension of the plasma membrane and is made up of a core of actin microfilaments Destruction of this structure can result in malabsorption. Found in jejunum
Microvilli
Apical modification of the cell that are long and sometimes branching. Also made up of Microfilaments or actin molecules. They are found in places like the epididymis and vas defers.
Stereocilia
Associated with intracellular transport, cell motility including movement of the cilia and mitotic spindle. Also helps maintain the cell shape and polarity. Made up of tubular protein subunits.
Microtubules
Degrades toxic reactive oxygen molecules and alcohol.
Peroxisomes
Has membrane bound ribosomes abundant in cells specialized in protein synthesis
RER
Digestive organelle has hydrolytic enzymes
lysosomes
Pseudopodia engulfing particle
Pagocytosis
Packaging and modification of protein
Golgi
Abundant in cells that specialize in lipid metabolism
SER
Condensed chromatin matter, less transcriptionally active
heterochromatic
less condensed chromatin matter, more transcriptionally active
euchromatic
John placed a RBC in hypotonic solution, what is the out come?
the cell will gain water
A malignant tumor that originates from epithelial tissue and may affect glands that are involved with secretion is called?
Carcinoma
A malignant tumor growing from connective tissues such as cartilage, muscle and bones is called a?
Sarcoma
A tumor that is locally invasive. This tumor can become progressively worse and can potentially result in death. It can grow and invade surrounding tissues
Malignant disease
A tumor that lacks the ability to spread (uterine fibroids)
benign tumor
Genes whose protein products control cell growth
proto-oncogene
What type of collagen do reticular fibers have?
Type III collagen
Where would you find type I collagen?
Dermis, tendons, bones, strong
What filaments do spinous have?
desmosomes
What filaments do basale have?
desmosomes and hemidesmosomes
Na/K pump, what type of membrane transport is this?
Primary active transport
A 24 year old man is diagnosed with a leading cell tumor in the right testis that resulted in the secretion of high levels of testosterone, a steroid hormone. Which of the following best describes the cellular organelle that would be the predominant in this cell type?
Smooth ER
What describes the phase of the cell cycle characterized by DNA replication?
S phase
