Concentration gradients Study guides, Revision notes & Summaries

sodium potassium pump - ️️enzyme that transports 3 sodium to the outside, and it transports 2 potassium to the inside using the hydrolysis of ATP - creates more sodium outside and more potassium inside and creates a concentration gradient Midline, ipsilateral and contrelateral - ️️line separating left and right of the entire nervous system - ipsilateral means the same side of something and contralateral means the opposite side of something Nissl stain showed (Nissl) - ️️Nissl u...

IB Biology: Chapter 1 Latest 2024 Graded A+ cell theory - all living things are composed of cells - the cell is the smallest unit of life - cells only arise from pre-existing cells challenges to the cell theory - *striated muscle* challenges the idea that a cell has one nucleus - *giant algae* challenges the idea that cells must be simple in structure & small in size - *aseptate fungal hyphae* challenges the idea that a cell is a single unit functions of life - metabolism - r...

Regulating body temp in homeotherms(4) Ans- -relocation -thermogenisis -blood flow:anatomical and functional consideration -evaporation Brown adipose tissue Ans- -is one of the two fats in humans. -activated by norepnephrine -oxidative phosphorlation Phagocytosis Ans- By the invagination of their membrane to obtain food. Glucogen Ans- Released when levels are low Insulin Ans- Released when levels are high Modivates movement of material Ans- -gravity -hydrostatic pressure -ele...

GMS 6440 Problem Set 2 Voltage and Concentration Gradients Exam questions and answers

d. Movement of sodium and potassium across the cell membrane against their concentration gradients. 2. B. A hypothesis 3. This study source was downloaded by from CourseH on :33:46 GMT -06:00 D. urea 4. 5. Carbon has an atomic number of 6. Which of the following is true about isotope c-12? a. C-12 possesses 6 neutrons and 6 protons in its nucleus b. C-12 possesses 7neutrons and 5 protons in its nucleus c. C-12 possesses 7 neutrons and 5 protons in its nucleus ...

Biology Lecture Notes Y. Nagah 1 | P a g e Biology Lecture Notes (STEMer’s guide) 2024 Lecture (3) Resting potential – Action potential Mr. Youssef Nagah Biology Lecture Notes Y. Nagah 2 | P a g e Ion pump and ion channels establish the resting potential of a neuron As you know, ions are unequally distributed between the interior of cells and the fluid that surrounds them. As a result, the inside of a cell is negatively charged relative to the outside. Because the attraction of o...

1 | P a g e Biology Lecture Notes FINAL END OF YEAR 2023 (STEMer’s guide) 2024 Lecture (3) Resting potential – Action potential 2 | P a g e ION PUMP AND ION CHANNELS ESTABLISH THE RESTING POTENTIAL OF A NEURON As you know, ions are unequally distributed between the interior of cells and the fluid that 3 | P a g e surrounds them. As a result, the inside of a cell is negatively charged relative to the outside. Because the attraction of opposite charges across the plasma membrane is ...

Initially there is a high concentration of sodium on the left side of a beaker of water. What is likely to happen (with regard to movement of ions and/or water) in this beaker? - The sodium will move to the right side of the beaker until it is spread out approximately the same throughout the beaker. What is the proper term for the process that is occurring in the beaker on the previous card? - Diffusion A red blood cell is surrounded by a solution containing a higher concentration of solut...

GMS-6440 Medical Physiology Exam 1 Questions With 100% Correct Answers 2024 What chemical component of the plasma membrane prevents ions from readily and freely moving across the membrane? - answerLipids (phospholipids) Where is the concentration of [K+] greater? - answerIn the cytoplasm Across a cell's plasma membrane, movemen of water is a ___________ event. - answerPassive through a channel. Where is the concentration of [Na+] greater? - answerIn the extracellular fluid. For a neutra...

WX 201 Exam 1 Study Guide with Verified Solutions Celsius to Farenheight F = (C * 9/5) + 32 Celsius to Kelvin K = C + 273 Characteristics of a permanent gas Concentration in atmosphere remains constant ; sources and sinks consistent Characteristics of a variable gas Concentration is changing ; sources and sinks are not consistent Density mass/volume Examples of green house gasses CH4 , CO2 , CFCs , O3 Farenheit to Celsius C = 5/9 (F-32) Friction strengthens convergen...