Review Sheet 1 Results 1. Describe two variables that affect the rate of diffusion. Your answer: Two variables that affect the rate of diffusion are the MWCO membrane and the solute concentration. Increasing the membrane size and solute concentration will also increase the average diffusion rate. Decreasing the membrane size and solute concentration will reduce diffusion rates and can even prevent all diffusion. 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane
Premium Diffusion Osmosis Molecular diffusion
Skeletal Muscle Physiology Activity 1 1. Skeletal muscle fiber- long‚ cylindrical cell with multiple oval nuclei arranged just beneath the sarcolemma Motor unit- all of the muscle cells controlled by a single motor neuron Skeletal muscle twitch- a single stimulus-contraction-relaxation cycle in a skeletal muscle Electrical stimulus- uses an electrical current to cause a single muscle or a group of muscles to contract Latent period- the time between the stimulation of a muscle and the start
Premium Neuromuscular junction Skeletal muscle Muscular system
Understand Anatomy And Physiology The Biological Systems Of The Horse Introduction This essay is about the biological systems of the horse and how they work‚ this includes topics like what the liver and pancreas do‚ what they produce and how they do it. It also covers topics such as the interaction of the circulatory system and respiratory system. What do the liver and pancreas do? The liver The horse liver is described as part of the digestive system‚ however‚ its functions go far beyond that
Premium
Chapter 14: Cardiovascular Physiology Cardiovascular Physiology Chapter 14 " Heart anatomy " Cardiac muscle cells " Autorhythmic cells " Cardiac cycle " Cardiac output " 1 Functions of Circulatory System " Transportation" – Respiration" Transport 02 and C02." – Nutrition" Absorbed digestion products delivered to liver and tissues" – Excretion" Carry metabolic wastes to kidneys" – Hormonal: " Carry hormones to target tissues" 2 The cardiovascular
Premium Heart
Lab 4: Endocrine System Physiology | 1. | | Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ? Answer: | The metabolic rates for the thyroidectomized and hypophysectomized rats were lower than that of the normal rat. | | | 2. | | Why did the metabolic rates differ? Check all that apply: Answers: | The hypophysectomized rat lacked thyroid-stimulating hormone. The thyroidectomized rat lacked thyroxine hormone.
Free Insulin Diabetes mellitus Hormone
Human Anatomy and Physiology 260 - Midterm 1 Cardiovascular Anatomy Arteries: • Carry Blood from the heart to the tissues • Gradually decreasing in size of vessels o Arteries - Transportation of red blood cells away from the heart o Arterioles - Smaller‚ lead from the arteries to the capollaries o Capillaries - Gas exchange (tissue level) • 3 layers of wall: o 1. Tunica Adventitia (Tough outer layer) o 2. Turnica media (Middle smooth muscular layer‚ changes the diameter of the blood
Premium Heart Blood Lymphatic system
THE ORGANISATION OF THE HUMAN BODY By Rachel Bull CELLS The organelles of cells and their function • Cell (or plasma) membrane - The plasma membrane acts as a boundary and controls what substances can enter and exit the cell. • Cytoplasm - This semi-fluid substance found inside the boundary of the cell and outside the nucleus cushions and protects the internal organelles‚ this is also where the majority of the chemical reactions happen. • Nucleus - The nucleus is the double-membraned central
Premium Epithelium Stomach Blood
EXERCISE 2: Skeletal Muscle Physiology Student Name: ___________________________ Student ID#: _____________________ Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers
Premium Skeletal muscle Muscular system Myosin
perception and test. 1.1 Explain the need of living organisms for nutrition. Nourishment is the science that deciphers the connection of supplements and different substances in sustenance (e.g. phytonutrients‚ anthocyanins‚ tannins‚ and so forth.) in connection to support‚ development‚ propagation‚ wellbeing and malady of a creature. It incorporates nourishment consumption‚ ingestion‚ osmosis‚ biosynthesis‚ catabolism and discharge. The diet of an organism is what it eats‚ which is largely determined by
Premium Nutrition Life Metabolism
Vanessa Yang Smith Period 6 Biology HP 17 March 2014 Biology Study Guide: Unit 6 Physiology III Benchmark 1. Homeostasis maintains and keeps a balance of an organism’s internal environment. 2. The body maintains homeostasis by the feedback inhibition‚ in which a stimulus produces a response that opposes the original stimulus. 3. The axon terminal is the nerve ending. The nodes speed up the message. The myelin sheath is an insulating membrane. The axon carries impulses away from the cell body
Premium Neuron Nervous system Axon