Osmotic pressure gradient - Study guides, Class notes & Summaries

NURS 8022 Exam 1 Questions With Correct Answers 100% Negative Feedback - ANSWER Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the pancreas Positive Feedback - ANSWER Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade Proteins - ANSWER Provide selectivity to a membrane Integral proteins - ANSWER channels, pores, carriers, enzymes, receptors, second messengers Peripheral proteins - ANSWER Enzy...

As red blood cells mature - they lose their nucleus and acquire hemoglobin, they only live about 120 days. When they age, red blood cells are phagocytized by white blood cells (macrophages) in the liver and spllen Albumins - the most abundant plasma proteins and contribute most to plasma's osmotic pressure. They combine with and help transport other organic molecules __________ from the kidneys stimulates production of red blood cells - Erythropoietin a group of cancerous conditions that ...

MCB 100 FULL Exam 1 (UIUC) Questions and Answers Graded A+ Question: What is the primary difference between prokaryotic and eukaryotic cells? Answer: Prokaryotic cells lack a true nucleus and membrane-bound organelles, while eukaryotic cells have a defined nucleus and organelles surrounded by membranes. Question: What is the role of ribosomes in bacterial cells? Answer: Ribosomes are responsible for protein synthesis, translating mRNA into polypeptide chains that fold into functional pr...

EXSS 276 Final Exam | Verified with 100% Correct Answers The movement of substances from the nephron tubule back into the bloodstream is referred to as: nephron replacement. nephron recirculation. tubular reabsorption. tubular secretion. The movement of substances from the bloodstream into the tubular nephron is referred to as: tubular reabsorption. tubular secretion. nephron replacement. nephron recirculation. The process by which plasma minus protein passes from the glomerulus into the tubul...

Homeostasis 1. Which one of the following is an example of a homeostatically controlled variable? (A)Heart rate (B) Body temperature (C) Hypothalamus (D)Thermoreceptors (E) Autonomic nervous system Answer: B. Only choice A and B are variable, and the body doesn’t maintain heart rate homeostatically. Feedback System 2. Which of the following is an example of negative feedback? (A)Increasing blood glucose level in hyperglycemia (B) Decreasing blood glucose level in hypoglycemia (C)...

BOT3015 EXAM 3 Marking Scheme 2024 100% Correct Brownian movement - Answer- molecules /ions in constant random motion Diffusion - Answer- movement of molecules or ions from region of higher concentration to region of lower concentration Molecules that are moving from a region of higher concentration to a region of lower concentration are said to be moving ______________________________ - Answer- Along a diffusion gradient molecules moving from regions of low to high concentration are sai...

osmosis - movement of water across a semi-permeable membrane osmotic pressure: definition - the force that attracts water across a semi-permeable membrane water attractors in osmosis - - sodium - albumin passive diffusion - - solutes crossing a semi-permeable membrane down a concentration gradient - No ATP needed facilitated diffusion - - solutes moving across a semi-permeable membrane from low concentration to high - ATP required anaerobic respiration - Respiration that does n...

NURS 8022 Exam 1 Questions With Correct Answers 100% Negative Feedback - ANSWER Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the pancreas Positive Feedback - ANSWER Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade Proteins - ANSWER Provide selectivity to a membrane Integral proteins - ANSWER channels, pores, carriers, enzymes, receptors, second messengers Peripheral proteins - ANSWER Enzy...

NURS 8022 Exam 1 Questions With Correct Answers 100% Negative Feedback - ANSWER Promotes stability; cancels out the original response. Ex: High FSBS, increased insulin by the pancreas Positive Feedback - ANSWER Promotes a change in one direction; instability, DISEASE. Ex: Blood clotting, platelet cascade Proteins - ANSWER Provide selectivity to a membrane Integral proteins - ANSWER channels, pores, carriers, enzymes, receptors, second messengers Peripheral proteins - ANSWER Enzy...

1. Glucose typically enters the cell through which mechanism? A. Simple diffusion through the cell membrane B. Facilitated diffusion through a carrier protein C. Pinocytosis through a channel protein D. Active transport by a glucose transport protein - AnsFacilitated diffusion through a carrier protein Glucose is too large and polar to move quickly through the cell membrane by simple diffusion. Typically, the concentration of glucose outside the cell is higher than inside the cell. Sinc...