public health microbiologists Daniel Salmon Source of Specific Epithet = Found in the intestines (entero-) Which groups of microbes are prokaryotes and which are eukaryotes? Prokaryotes Bacteria Archaea Eukaryotes Fungi Protozoa Algae Multicellular animal parasites Viruses Acellular What are the three domains? Explain the importance made by Hooke and Van Leeuwenhoek. Robert Hooke 1665 able to see individual cells Cell theory- that all living things are composed of cells Anton
Premium Bacteria
8.4 Life On Earth Students Learn About 1. Analysis of the oldest sedimentary rocks provides evidence for the origin of life • Identify the relationship between the conditions on early Earth and the origin of organic molecules Notes THE AGE OF THE EARTH - based on geological‚ magnetic‚ radiographic and paleontological studies: aged 4.5 billion years - Hadean eon: formation of earth from gaseous cloud to solid body. Heavy molten iron sank down and became the core‚ lighter rock came to surface = crust
Premium Bacteria Oxygen Organism
Microscopes were invented in the 1600s. Robert Hooke first looked at a thin slice of cork in 1665; he saw "a lot of little boxes." These little boxes first reminded of the little rooms monks lived in‚ so he called them cells. Hooke observed the same pattern in the stems and roots of carrots and other plants. What Hooke still did not know‚ however‚ was that cells are the basic units of living things. Ten years later‚ the Dutch scientist Anton van Leeuwenhoek focused a microscope on what seemed to
Free Atom Chemical bond Cell
Kingdom Protista Protist: Eukaryotic organisms (usually unicellular) that is not a fungus‚ plant or animal * 90% are unicellular organisms * Split based on locomotion * The kingdom divides into three main sections being: animal-like‚ plant-like and fungus-like. Then they are split based on their form of locomotion. * They live in moist environments -> aquatic environments or blood. * Even though they are single-celled‚ they are MUCH larger than Archae and bacteria (refer
Premium Eukaryote Plant Bacteria
There is a wide range of eukaryotic organisms‚ including all animals‚ plants‚ fungi‚ and protists‚ as well as most algae. Eukaryotes may be either single-celled or multicellular. In eukaryotes‚ genetic material‚ or DNA‚ is contained within an organelle called the nucleus‚ where it is organized in long molecules called chromosomes. The plasma membrane
Premium Eukaryote Bacteria DNA
Prokaryotic cells vs. Eukaryotic cells Two Fundamentally Different Classes of Cells charcteristic Prokaryotic Cells Eukaryotic Cells word origins pro=before karyon=kernel or nucleus eu=true karyon=kernel or nucleus Domains of Bacteria 1. archaea or archaebacteria‚ more ancient in soil and water also in hostile environments‚ many without oxygen high salt/brine methanogens halophiles thermoacidophiles hot acidic springs 2. bacteria or eubacteria‚ more
Premium Cell DNA Organelle
` Study Guide for Exam 1 Chapter 1: 1. What is a “microbe”? What groups of organisms are included in this category? Microbes (microorganisms) are minute living things that individually are too small to be seen with the unaided eye the group includes bacteria‚ fungi‚ protozoa‚ and microscopic algae‚ viruses Only minority of microorganisms are pathogenic(disease-producing) 2. What are some of the benefits provided by microbes? Decompose organic waste‚ producers in the ecosystem
Free Bacteria
eg. The Dead Sea Thermophiles → live in hot sulfurous water eg. Hot springs at Yellowstone National Park Fungi Cells hv a district nucleus = DNA surrounded by special envelope(lipid membrane) = nuclear membrane unicellular(eg. yeast) / multicellular (eg. Mushrooms‚molds) cell wall of true fungi →compose of chitin 最common fungi → molds(mycelia (bread & fruit) → compose of long hyphae) 吸收nourishment by absorbing sol. of organic material from environment (eg. Soil ‚ seawater)slime molds
Free Bacteria
hat are Plants and How did they Evolve: Plants are multicellular‚ photosynthetic organisms‚ adapted primarily for life on land. With a combination of both‚ underground and aboveground structures‚ plants have the ability to absorb water and mineral nutrients from soil while food production is also occurring through the process of photosynthesis. Scientists assume that plants where the cause of evolution‚ adapting from aquatic green algae 500 million years ago. Many essential adaptations would have
Premium Photosynthesis Carbon dioxide Oxygen
(peptidoglycan‚ mannose repeats)‚ flagellar proteins (flagellin)‚ lipids (lipotechoic acid) characteristic DNA methylation patterns Fungi Candida (thrush) athlete’s foot‚ Cryptococcus‚ Ringworm(Dermatophytosis ) Eukaryotic‚ unicellular‚ multicellular or multinucleate Cell wall: zymosan ( β 1-3 glucan) and chitin (cellulose with N-acetyl glucosamine instead of just glucose) Protozoa malaria‚ Chagas‚ sleeping sickness‚ amebic dysentery‚ leishmaniasis
Premium Bacteria DNA Immune system