Experiment for diffusion - Study guides, Class notes & Summaries

CHAPTER 5: Within the fluid mosaic of a plasma membrane, what is the role of transport and channel proteins? - They permit salts and sugars to move through the plasma membrane. CHAPTER 5: If red blood cells are taken from the body and placed in a hypertonic solution, what happens to the cells? - The cells shrivel up because water leaves them. CHAPTER 5: Plasma membranes are BEST described as a what? - single layer of phospholipids with tails pointed toward the inside of the cell. CHAPTE...

IB Bio HL I Semester 1 Exam Review with Certified Solutions Outline the Cell Theory -All organisms are composed of one or more cells -Cells are the smallest unit of life -All cells come from pre-existing cells Discuss the evidence for Cell Theory -Robert Hooke uses microscope to observe living cells -Louis Pasteur performs chicken broth experiment to prove that cells come from pre-existing cells Outline the therapeutic uses of stem cells -Implanted stem cells to rebuild brain tis...

1. How are drugs sorted into therapeutic groups and classes? A. first by the conditions that they are used to treat. and then by their mechanisms of action B. first by their mechanisms of action. and then by their therapeutic effects C. first by their side effects. and then by their therapeutic effects D. first by their toxicity. and then by their effectiveness 2. Bone marrow transplants... A. require that the patient first undergo chemotherapy or radiation to kill the diseased...

Anthropology Study of the origins and development of people and their societies AAA's Code of Ethics -Do No Harm -Be Open and Honest About your Work -Obtain Informed Consent and Permissions -Weigh Competing Ethical Obligations -Make Results Accessible -Protect and Preserve Records Adaptation refers to the processes by which organisms cope with environmental forces and stresses Archaeology reconstructs, describes, and interprets human behavior and cultural patterns through mater...

TEST BANK FOR THEORIES OF PERSONALITY UNDERSTANDING PERSONS, 7TH EDITION, SUSAN CLONINGER, Theories of Personality, 7e (Cloninger) Chapter 1 Multiple Choice 1) Psychology attempts to understand human nature using the method of A) science. B) literature. C) intuition. D) philosophy. Answer: A Difficulty Level: Easy Skill Level: Understand the Concepts Learning Objective: 1.1 Topic: Psychology as science p. 2 2) What is personality, according to your text? ...

BIO 100 LAB FINAL QUESTIONS WITH VERIFIED SOLUTIONS What are the steps of the Scientific Method? Observation, formulation of a question, hypothesis creation, experimentation, repetition, and data analysis How do you calculate total magnification? 4 x 10 = 40x 10 x 10 = 100x 40 x 10 = 400x Can any characteristic be used in an analytical key? Only observable characteristics What is taxonomy? The science of classifying organisms using a binomial system What is diffusion? The mov...

Discovering Psychology the Science of Mind 1st Edition Test Bank by Cacioppo Freberg Chapter One: The Science of Mind - The Discipline of Psychology MULTIPLE CHOICE 1. Which of the following best describes the mind? a. The basis of rational thought c. The embodiment of the soul b. The hidden instinctual self d. The brain and its activities ANS: D PTS: 1 DIF: Remember REF: What Is Psychology? OBJ: LO1 2. The scientific study of behavior and mental processes is called ____. a. introspecti...

Sociology 101 Straighterline Exam Questions and Complete Solutions __________ involves aspects of social life that have to do with order, stability, and social organization that allow societies and groups to hold together and endure. - Answer: Social statics Herbert Spencer viewed society as a system, having important similarities with - Answer: a biological organism __________ refers to processes of social life that pattern institutional development and have to do with social change. -...

Edexcel iGCSE Chemistry, question and answer with rated solution Experiment for Diffusion? 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? 1) Put a coloured substance in a solvent e.g food colouring in water. 2) Over the time, the colour le...

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...