https://padlet.com/1718439/df4jalgdt3gu en-us 2016-12-19 15:43:02 UTC 2026-01-17 18:29:58 UTC hello@padlet.com 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144332601 an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.]]> 2016-12-19 15:48:39 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144332601 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144332893 Because most viruses are extremely well adapted to their host organism, virus structure varies greatly. However, there are some general structural characteristics that all viruses share. All viruses have a capsid or head region that contains its genetic material. The capsid is made of proteins and glycoproteins.]]> 2016-12-19 15:49:57 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144332893 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144333191
A virus is made up of a core of genetic material, either DNAor RNA, surrounded by a protective coat called a capsid which is made up of protein]]> 2016-12-19 15:51:16 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144333191 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144333685 the virus attaches itself to a specific host cell (the cell in which it will reproduce) the virus injects its genetic material into the host cell. the host cell uses the genetic material to make new viruses. the host cell splits open, releasing the viruses.

]]> 2016-12-19 15:53:26 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144333685 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144334044

Chickenpox.

Flu (influenza)

Herpes.

Human immunodeficiency virus (HIV/AIDS)

Human papillomavirus (HPV)

Infectious mononucleosis.

Mumps, measles and rubella.

Shingles.

]]> 2016-12-19 15:55:11 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144334044 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144334335 Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals]]> 2016-12-19 15:56:09 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144334335 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144334727 Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane]]> 2016-12-19 15:57:46 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144334727 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144335058  Bacteria have pili, flagella and a cell capsule (most of them), unlike animal or plant cells. An organism without a nucleus is called a prokaryote.]]> 2016-12-19 15:59:10 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144335058 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144335296 Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two ]]> 2016-12-19 16:00:15 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144335296 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144335474 Common pathogenic bacteria and the types of bacterial diseases they cause include: Escherichia coli and Salmonella cause food poisoning. Helicobacter pylori cause gastritis and ulcers. Neisseria gonorrhoeae causes the sexually transmitted disease gonorrhea. Neisseria meningitidis causes meningitis.]]> 2016-12-19 16:01:08 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144335474 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144335714 A fungus is any member of the group of eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as multicellular fungi that produce familiar fruiting forms known as mushrooms]]> 2016-12-19 16:02:11 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144335714 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144335965

Most fungi grow as tubular filaments called hyphae. An interwoven mass of hyphae is called a mycelium.

The walls of hyphae are often strengthened with chitin, a polymer of N-acetylglucosamine. ...

Fungi disperse themselves by releasing spores, usually windblown. ...

Fungi are heterotrophic

]]> 2016-12-19 16:03:08 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144335965 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144336159 The majority of fungi - except for the one-celled oranisms - are composed of hyphae; threadlike tubular filaments. Hyphae is the plural of hypha. A hypha has a rigid wall around it generally made of chitin.]]> 2016-12-19 16:03:55 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144336159 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144336616 Single-celled yeasts reproduce asexually by budding. A single yeast cell can produce up to 24 offspring. Fungi that make hyphae can reproduce asexually as well. Bits of the hyphae can break off and continue to grow as separate entities, or can form stalks containing seed-like spores.]]> 2016-12-19 16:06:01 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144336616 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144336850

Candida Infection. Candidiasis is a common yeast infection that affects many people. ...

Fungal Meningitis. ...

Aspergillus Infection. ...

Athlete's Foot. ...

Jock Itch. ...

Ringworm.

]]> 2016-12-19 16:07:10 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144336850 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144337086 an organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense.]]> 2016-12-19 16:08:17 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144337086 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144337205 Characteristics. As originally defined, parasites included any organisms that live by drawing food from a host organism.]]> 2016-12-19 16:08:50 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144337205 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144337420 A parasite is an organism that lives in another organism, called the host, and often harms it. It is dependent on its host for survival - it has to be in the host to live, grow and multiply.]]> 2016-12-19 16:10:01 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144337420 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144337595 A host in which parasites reproduce sexually is known as the definitive, final or primary host. in intermediate hosts, parasites either do not or do asexually, but the parasite always develops to a new stage in this type of host]]> 2016-12-19 16:11:03 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144337595 1718439 https://padlet.com/1718439/df4jalgdt3gu/wish/144337813

Protozoa: a single-celled organism. Plasmodium, which causes malaria, is an example. ...

Helminths: worm parasites. Schistosomiasis is caused by a helminth. ...

Ectoparasites: these live on, rather than in their hosts, these include lice and fleas

]]> 2016-12-19 16:11:56 UTC https://padlet.com/1718439/df4jalgdt3gu/wish/144337813