Pnb 2264 Study guides, Class notes & Summaries

A cell is taken out of the body and placed into a test solution. The concentration of solute X in the test solution is 100mM, and the concentration of solute X inside the cell is 200mM. The cell membrane is permeable to water but not solute X. Which of the following statements is/are true? a. There is a net flux of water out of the cell b. The test solution is hypertonic c. There is flux of water molecules into and out of the cell d. All of the above are true - c. There is flux of water mo...

PNB 2264 FINAL CUMULATIVE EXAM | 261 QUESTIONS | SOLVED 100% CORRECT ANSWERS!!

PNB 2264 Final Exam Actual Questions and Answers 2024/2025 Graded A+

______ control systems can cause "anticipatory" changes in the body before any change in blood levels of a regulated variable a. closed or open loop; negative feedback b. closed loop, negative feedback c. open loop d. closed loop, positive feedback - c. open loop `When solutes move from a region of high concentration to low concentration, it is said to be "moving ______________ the concentration gradient." - down a cell is taken out of he body and placed into a test solution. the con...

PNB 2264 Final Cumulative Exam Updated 2024/2025 Actual Questions and Answers Verified by Experts(wiseman)

absorption - molecules enter cell from ECF acinar cells - Cells that make up exocrine glands, and that secrete their products into ducts. adherens junctions - joins together two cells together by connecting proteins thru their cytoskeletons - found along the membranes of interconnected epithelia - encircles the cell adjacent to all its neighbors ex. actin adipose connective tissue - fat tissue -> energy storage afferent - sensory alveolar ducts - Small passages connecting the respira...

__________ is made of multiple globular molecules polymerized to form long chains or filaments. Myosin Titin Actin Troponin Tropomyosin - Actin ______________, found on the motor end plate, produce the end plate potential in the presence of Acetylcholine. Ligand gated cation channels Voltage gated sodium channels Voltage gated calcium channels Ligand gated chloride channels - Ligand gated cation channels A closer look at the muscle fiber subtypes in skeletal muscles responsible for s...

A person's knee strength as assessed by the PT with a manual muscle test shows a 4+ (good+) grade for knee extension. What would you expect the strength to be if that same person lacked a patella? a- Stronger (e.g. a 5 or normal grade) b- weaker (e.g. a 4 or good grade) c- the same (4+) - b- weaker (e.g. a 4 or good grade) Compared to the shoulder, the hip joint has ___________ degrees of freedom & __________ range of motion a- the same, the same b- more, more c- more, less d- less, m...

UCONN PNB 2264 Exam 1 Latest Update Graded A+ Homeostasis "Dynamic steady state" Narrow limits and fluctuations around the "set point" % of Intracellular fluid in the body 67% % of Extracellular fluid in the body Interstitial fluid (26%) Blood Plasma (7%) The Four Tissue Types Epithelial, Connective, Muscle, Nervous Epithelial Tissue 1. Covers exposed surfaces 2. Lines internal passageways 3. Forms glands Hydrogen and Oxygen combine via: Polar Covalent Bonds Hydroge...

PNB 2264 Exam 1 (UConn) Latest Update Graded A+ homeostasis dynamic steady state; small fluctuations around the set point negative feedback response returns regulated variable toward set point (response removes stimulus), closed loop used for homestasis positive feedback response to the effector reinforces the stimulus; promotes useful change Properties of water polar-covalent bond creates sticky molecules, solvent to ionize compounds (electrolytes), high specific heat, lubrication & cushioni...