These cells are necessary for the transduction process. This process begins when odorant molecules arrive the mucus layer of the epithelium. First‚ odorant receptors are g-protein coupled receptors. The molecules are binded to the g-coupled protein receptors. When these g-protein coupled receptors change shape‚ they cause an activation. These odorant receptors are located olfactory
Premium Olfaction Taste Sense
Anosmia is characterised as the loss of the ability to perceive smell‚ also known as a lack of olfactory function (Parker &Parker‚ 2004). Anosmia is said to be caused by an underdevelopment or absence of the olfactory bulbs and tracts (Dallago‚ Abech‚ Pereira-Lima‚ Leaes‚ Batista‚ Trarbach & Oliveira‚ 2008). It has been shown that approximately 1 in 10 000 males and 1 in 15 000 females are affected by this condition (Vowles‚ Bleach & Rowe-Jones‚ 1997). There are various disturbances that can cause
Premium Olfaction
Results for Shigella flexneri: Test | Results | Interpretation | Gram stain | Red; small bacilli with no arrangement | Gram-negative bacillus | 3% KOH | Positive for stringing | Verifies Gram-negative | Vancomycin | No zone of inhibition | Gram-negative (vancomycin resistant) | Motility | Only the length of stub is red | Negative for motility | Indole | Yellow layer after kovac’s reagent added | Negative for tryptophanase; Indole negative
Premium Bacteria Microbiology Escherichia coli
stratum corneum. Even though the sebacious glands and sudoriferous glands have ducts that open onto the skin surface or a hair follicle‚ the actual glands are located in the dermis. The epidermis is composed of a keratinized stratified squamous epithelium. Just like other epithelia‚ it is avascular (without blood
Premium Anatomy Human anatomy Biology
Chapter 28 Question 1 1 out of 1 points A pregnancy test involves antibodies that detect GH levels in a woman’s blood or urine. Selected Answer: False Answers: True False Question 2 1 out of 1 points Sperm move to the uterine tube through uterine contractions and the energy of their own flagella. What other factor is involved in sperm movement? Selected Answer: reverse peristalsis of the uterus and uterine tubes
Premium Pregnancy Zygote Embryo
Corneal Ulcer (Introduction) The eye is one of the vital organs in a human being. As seen on figure 1‚ the eye is composed of many different parts and function. The cornea is a clear covering over the colored iris and the pupil of the eye. The function of cornea is to help focus light on the retina and protect the iris‚ lens‚ etc. so that the eye can see. The cornea is best to compare with a standard contact lens. Although‚ the function of a cornea is to protect from harmful microorganisms
Premium Contact lens Bacteria Eye
Introduction Turtles are remarkable creatures‚ but are not known to form social bonds or be monogamous. Like many animals‚ female turtles are capable of storing sperm inside of them for extended periods‚ and it is necessary for some turtle species in order to ensure fertilization. In most turtle species‚ gamete maturation does not occur at the same time of the year; male gametes typically mature in the fall‚ and the female ovulation typically occurs in the spring time (1). Sperm storage allows females
Premium Pregnancy Reproduction Female
Use the words to match the function of the following organelles. |M___ Membrane separating the contents of the nucleus from the rest of the cell |a. cilia | |J___ Protein synthesis |b. microtubules | |L___ Helps in animal cell division |c. lysosomes | |E___ Contains DNA
Premium Cell Organelle DNA
|Antigen-presenting cells |Cells which do not have antigen-specific receptors. Instead‚ they capture and | | |process antigens‚ present them to T cell receptors. These cells include | | |macrophages‚ dentritic cells and B cells. | |B cells |Also known as B cell lymphocytes. | |
Premium Immune system White blood cell
Species: | Blue Grey Periwinkle | Noddiwinkle | Stripe Gridled Chiton | White Tube Worm | Sea Squirt | Honeycomb Barnacle | Brown Tube Worm | Tidal Zones: | High Water Spring Tide | Splash Zone | Sub Littoral | Mid Tide Level | Low Water Tide | High Water Neap Tide | Sub Littoral | Wave Battering | Blue Grey Periwinkles have a muscular foot used to stick onto surfaces to prevent them from falling off rocks. | Noddiwinkles live in the splash zone‚ meaning they are excluded from any form of wave
Premium Intertidal zone Tide