A a gradient - 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...

A-level MATHEMATICS Paper 3 Tuesday 20 June 2023 Afternoon Time allowed: 2 hours Materials l You must have the AQA Formulae for A‑level Mathematics booklet. l You should have a graphical or scientific calculator that meets the requirements of the specification. Instructions l Use black ink or black ball‑point pen. Pencil should only be used for drawing. l Fill in the boxes at the top of this page. l Answer all questions. l You must answer each question in the space provided for t...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Physics (8PH0) Paper 02: Core Physics IIEdexcel and BTEC Qualifications Edexcel and BTEC qualifications come from Pearson, the world’s leading learning company. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or for our BTEC qualifications. Alternatively, you can get in touch with us using...

why are membranes called phospholipid bilayers? - Answer-phospholipids have hydrophilic head and hydrophobic tail, hydrophobic face inside of cell making 2 layers what is meant by fluid mosaic? - Answer-Mosaic of proteins drifting laterally in fluid bilayer of phospholipids how are membranes adjusted for different temperatures? - Answer-membrane fluidity adjusted by changing the ratio of unsaturated to saturated fatty acids how do the relative amounts of saturated and unsaturated fats chan...

Which layer of serous membrane lines the walls of cavities? - Answer-Visceral (wrong) Which directional term, also known as dorsal, means nearer to or at the back of the body? - AnswerPosterior Which type of tissue produces chemicals and fluid that digests food in the stomach? - Answer-Muscle (wrong) Which term describes the study of the function of components of the body? - Answer-Physiology Eight chemical elements constitute 3.6 percent of total body mass. What are these chemical elements...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Biology B (9BI0) Paper 01: Advanced Biochemistry, Microbiology, and Genetics Edexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with ...

BNU1501 Assessment 4 Semester 2 2023-Due Date: 15 September 2023 . 100% CORRECT questions, answers, workings and explanations.Question 1 If a vertical and horizontal number line intersect perpendicularly, they form right angles (of 90%) with each other and a co-ordinate system of axes is formed, the horizontal line is called: [1] Quadrants [2] y-axis [3] Co-ordinates [4] x-axis Question 2 The point at which the two axes intersect (cross each other) is called: [1] Centre [2] Vertex [...

Hemo Dialysis Bonnet Exam With 100% Correct Answers 2023 Osmosis movement of fluid across a semipermeable membrane from an area of lower concentration to higher concentration Diffusion movement of dissolved particles across a semipermeable membrane from an area of higher concentration to lower concentration Ultrafiltration water is removed from blood because there is pressure gradient across the membrane Ultrafiltration Rate The rate at which fluid moves from blood into...

BIOL 1P91 Final Exam Questions And Verified Solutions What are the 3 general components that make up an atom? - ANS Protons Neutrons Electrons The sum of the atomic number and the number of neutrons is: - ANS A (the atomic number) Mass Number Which of the following is/ are a polar bond? A) O-H bond in water * B) C-O in CO2 C) N-N in N2 D) all of the above E) two of the above - ANS A) O-H bond in water A substance dissolvable in oil is said to be: - ANS Hydrophobic...

Rush Advanced Pharmacology NSG 531 Exam 1 Questions with Correct Answers Drug a substance intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease and a substance, other than food, intended to affect the structure or any function of the body T/F most drugs are strong acids or strong bases F - most drugs are weak acids or weak bases what are the four things that the body does to a drug? 1. absorbs it 2. distributes it (think about it - most drugs don't hav...