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Results for: 'Anatomy and Chemical Makeup of a Single Hair (Animation)'
Osmosis - Isotonic, Hypotonic, and Hypertonic Solutions
By: HWC, Views: 6655
Isotonic: Equal Water moves in and out of the cell at an equal rate. The cell remains unchanged. Hypotonic: "hypo" hippo Water moves into the cell, making it swell and get fat (like a hippo). Eventually the cell can rupture and burst (aka lyse). Hypertonic: "like a raisin" Water leaves...
Photosynthesis and Van Helmont Experiment
By: HWC, Views: 5897
All energy on Earth comes from a star, the Sun. Light must travel 160 million kilometers to reach Earth where plants capture this light energy and convert it to chemical energy in the form of sugars. This biochemical process is called PHOTOSYNTHESIS. The summary equation for photosynthesis is ...
By: Administrator, Views: 9694
Otitis media is a group of inflammatory diseases of the middle ear. The two main types are acute otitis media (AOM) and otitis media with effusion (OME). AOM is an infection of rapid onset that usually presents with ear pain. In young children this may result in pulling at the ear, increased cryi...
By: Administrator, Views: 9898
Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules. These cells are called spermatogonial stem cells. T...
By: Administrator, Views: 9788
The majority of epilepsy cases are idiopathic (cause not identified) and symptoms begin during childhood or early adolescence. A child who has a seizure while standing should be gently assisted to the floor and placed in a side-lying position. In adults, epilepsy can occur after severe neu...
By: Administrator, Views: 10418
An epinephrine auto-injector is a medical device for injecting a measured dose or doses of epinephrine by means of autoinjector technology. It is most often used for the treatment of anaphylaxis. The first epinephrine auto-injector was brought to market in the 1980s.
By: Administrator, Views: 218
Eversion–Turning outward. Inversion–Turning inward.
By: HWC, Views: 4438
A monohybrid cross is a cross between two parents that breed true for different versions of a single trait. In this example, that trait is flower color. The allele that specifies purple flowers is dominant over the allele that specifies white flowers. The purple-flowered plant has two domin...
By: HWC, Views: 6114
First step: strands are separated • Helicase unwinds the DNA double helix at the replication fork • SSBs coat the single strands to prevent reannealing • Polymerase attaches nucleotide at 3' end • Synthesis is in 5' to 3' direction DNA Polymerase: • Only extends nucleic ac...
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