NUR 2063 Exam 1 Concept Review
- permeability
Answer the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
- diffusion
Answer Movement of molecules from an area of higher concentration to an area of lower concentration.
- osmosis
Answer Diffusion of water through a selectively permeable membrane
- active transport
Answer the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
- Phagocytosis
Answer process in which extensions of cytoplasm surround and engulf large particles and take them into the cell
- passive transport
Answer the movement of substances across a cell membrane without the use of energy by the cell
- Where does ATP come from?
Answer mitochondria 1 / 3
- cell proliferation
Answer the act of a single cell or group of cells to reproduce and multiply in number, can destroy tissue and cause death
- hypertonic
Answer when comparing two solutions, the solution with the greater concen- tration of solutes
- hypotonic
Answer when comparing two solutions, the solution with the lesser concen- tration of solutes
- What do ribosomes produce?
Answer proteins by following coded instructions that come from DNA
- What is the endoplasmic reticulum?
Answer a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.
- What is homeostasis?
Answer process by which organisms maintain a relatively sta- ble internal environment
- What alters homeostasis?
Answer fever, stress, pregnancy, illness
- endocytosis
Answer A process in which a cell engulfs extracellular material through an inward folding of its plasma 2 / 3
membrane.
- Pinocytosis
Answer A type of endocytosis in which the cell ingests extracellular fluid and its dissolved solutes.
- Hypertropy
Answer An excessive enlargement or overgrowth of tissue
- Hyperplasia
Answer the enlargement of an organ or tissue because of an abnormal increase in the number of cells in the tissues
- atrophy
Answer (n.) the wasting away of a body organ or tissue; any progressive decline or failure; (v.) to waste away
- cachexia
Answer a condition of physical wasting away due to the loss of weight and muscle mass that occurs in patients with diseases such as advanced cancer or AIDS
- signs and symptoms of metabolic alkalosis
- restlessness, followed by lethargy
Answer
- dysrhythmias (tachycardia, bradycardia)
- compensatory hypoventilation
- confusion, decreased LOC, dizzy, irritable
- nausea, vomiting, diarrhea
- tremors, muscle cramps, tingling of fingers and toes*
- hypokalemia
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