Diffusion limits Study guides, Class notes & Summaries

Describe the relationship between the size of an organism and its SA:V ratio - ANSWERSmaller organisms have high SA:V ratios Larger organisms have low SA:V ratios What adaptations do some organisms have for exchange (in terms of SA:V ratio)? - ANSWERThe flattened shape so that no cell is ever far from the surface. The specialised exchange surfaces with large areas to increase the SA:V ratio ---> lungs in animals, gills in fish etc. What is the relationship between SA:V ratio and metabo...

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...

Which client form allows clients to understand and accept any and all risks associated with beginning an exercise program? - liability waiver A movement that keeps the distal end of the body segment fixed in one location describes what type of kinetic chain movement? - Closed kinetic chain movement Which of the following is considered an incomplete protein? - peas For the average adult what percentage of the diet should be carbohydrates? - 45 to 65 percent of daily calories In which ...

Choose the answer that best illustrates hierarchy of organization. A. Blood levels of glucose are maintained within narrow limits B. Organs are made up of molecules and tissues are made up of organ systems C. Diffusion occurs down a concentration gradient D. Tissues are made up of cells and organs are made up of tissues E. All of the above - correct answer-D. Tissues are made up of cells and organs are made up of tissues The purpose of positive feedback mechanisms is to __________ . A. ...

Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora Testbank Chapter 1. An Introduction to the Human Body Multiple Choice 1. This is the study of the functions of body structures. a. Anatomy b. Physiology c. Dissection d. Histology e. Immunology Ans: B Difficulty: easy Feedback: 1.1 2. This is defined as a group of cells with similar structure and function. a. Tissue b. Organ c. Molecules d. Compounds e. Organism Ans: A Difficulty: easy Feedback: 1.2...

Write a few sentences that explain what limits an individual cell from becoming more complex. - Correct answer-Bimolecular machinery and division of labor The paramecium discussed in class contained an organelle called the contractile vacuole. This is the presumed precursor of the: - Correct answer-Kidney In cell Biology what can limit the progress of science? - Correct answer-Technology True or False: In you own multicellular body, cells with different functions have different DNA - Corre...

CHEM 210 MODULE 3 & 4 2024 NEWEST ACTUAL EXAM WELL ELABORATED QUESTIONS AND VERIFIED CORRECT ANSWERS ALREADY A GRADE. What is liquid junction potential - ANSWER- Potential difference that develops across an ion permeable boundary between different electrolyte solutions Limits the accuracy of potential measurements What causes liquid junction potential - ANSWER- -diffusion of cations & anions at different rates -seperation of charges generated voltage What is membrane potential - ...

National Prep exam 2 Home Inspector Course study material 2024 1. The purpose of a home inspection is to provide: (a) An estimation of the costs of improving their property (b) Provide a list of the property's patent and latent problems and concerns (c) Provide information regarding the property conditions at the time of the inspection (d) Provide conclusions about all of the conditions of the property at the time of the inspection - CORRECT ANSWER-C, Provide information regarding th...

What are the normal respirations of adults? Infants? - 12-20 and 20-40 What is the purpose of surfactant? - Reduces surface tension in alveoli (lubricant) What is the normal stimulus to breathe in a healthy patient? - Carbonic drive What is a pink puffer? Blue Bloater? - A COPD Patient with Emphysema. A COPD Patient with Chronic Bronchitis What causes inhalation? - Diaphragm and Intercostal muscles contract Where are the different lung sounds located? (Upper, Lower Airway) What causes the...

Support, protection of soft tissues, mineral storage, and blood formation ate functions of which system? - Answer-Skeletal The increasingly forceful labor contractions that lead to childbirth exemplify - Answer-Positive Feedback When body temperature FALLS, a center in the brain initiates physiological changes to INcrease body temperature. This regulation mechanism is an example of... - Answer-Negative Feedback Your instructor presented the idea that all physiology is finally reducible to: ...