Diffusion: Molecules on the Move Dialysis tubing is an excellent way to simulate the cell membrane’s selective permeability. In this experiment, sealed dialysis tubing containing
Introduction 2-3 students per group Prep: 15 minutes Class: 15-45 minutes over 3 days Subject: Physiology Grade: 6-12 Water passes into and out of cells
Anatomy and physiology courses benefit greatly from the use anatomical models and skeletons. Quality models show detailed morphology of organs and complete body systems. Models simplify the identification of anatomical structures, organ positioning within the body cavity, and the relationship between structure and function. Many models can be disassembled, allowing students to explore internal structures. Additionally, they are an excellent reference tool for identifying small and indistinct structures.
The human body has 11 main body or organ systems. These systems are made up of organs and other structures that work together to carry
Abnormal urine composition often indicates disease or infection. Diabetes is often diagnosed after a patient has a positive test for glucose in the urine. Diabetes is the result of an inability to absorb glucose from the blood. The body compensates for these elevated blood glucose levels by filtering the glucose out through the kidneys; the excess glucose exits the body through the urine.
There are 4 main types of tissue: epithelial, muscle, nervous, and connective. Each type has a particular function and can be found to some degree
All cells are bound by some type of permeable or semipermeable membrane that governs the ions, small molecules, and large molecules that enter and leave the cell. Diffusion is the general process of movement down a gradient that results in equal concentrations of solutes on both sides of the membrane. When water is the molecule entering or leaving the cell the process is osmosis. This guide breaks down the important information students need to know, provides links to products and free digital resources, and includes suggestions for hands-on-labs that reinforce student learning.
Examining the reproductive system of the rat, students have the opportunity to compare male and female organs, study internal fertilization, and observe gestational changes in
Lead students in an engaging and creative project where they build a model that demonstrates the flexing action of the human hand. Students use craft
Carolina® Synthetic Blood has several advantages over other suppliers’ products, which usually depend on chemical reactions producing insoluble salts that precipitate from solutions. These products do not give visually realistic results. In actual blood typing, red blood cells form clumps (the agglutination reaction) that separate from the blood plasma. When mixed the appropriate synthetic antiserum, Carolina® Synthetic Blood forms clumps in the same way, for a realistic blood typing result. It’s the closest to authentic blood typing that you can get without using real blood.
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