* Fungi are Eukaryotic, mainly multi cellular organisms includes molds and mushrooms * fungi lack chlorophyll * they are heterotrophic and cell walls contain chitin * more closely related to animals * supergroup Unikonta categorized as opisthokonts bc of single posterior flagellum * heterotrophs, secrete enzymes which digest food outside the body, the broken down food is then absorbed by hyphae * 3 types of fungi * decomposer fungi, absorb nutrients from nonliving sources * parasitic fungi: absorb nutrients form living sources * mutualistic fungi: both fungus and host organism benefit from relationship (example is mycorrhizal fungus and plant roots) * Mycelium is made up of threads called hyphae. * hyphae may have septate ( cross walls that separate nuclei and cytoplasm into cells) * hyphae may be coenocytic which means lack of such cross walls * Sexual reproduction occurs only when mycelia of different mating strains meet and fuse * plasmogamy: the union of the cytoplasm of the two gamete cells * karyogamy: the union of the nuclei * dikaryon (unfused) refers to the nuclei * fungus is all haploid, only diploid life cycle is the zygote. zygote undergoes meiosis to produce haploid spores for dispersal * molds: fungi in vegetative state (Deuteromycota/ fungi imperfecti * fungi are classified into 5 phyla * Chytridiomycota: spores with flagella * the rest named after the reproduction structures formed * Zygomycota: produces zygosporangia * bread molds: Rhizopus * 3 types of hyphae * stolon hyphae: cover surface of bread * rhizoid hyphae: penetrate the bread and absorb nutrients * Sporangiophores: stand upright bearing spores at tips * sexual reproduction occurs when opposite mating ypes (+-) of hyphae come together. *
A fungus (/ˈfʌŋɡəs/; plural: fungi or funguses) is a member of a large group of eukaryoticorganisms that includes microorganisms such as yeasts and molds (British English: moulds), as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, protists and bacteria. One major difference is that fungal cells have cell walls that contain chitin, unlike the cell walls of plants and some protists, which contain cellulose, and….
differentiate between bacteria, fungi and yeast, we plant four different microbes in plates under the same environment for one week and compare the growth of the four microbes by macroscopic and microscopic observation. Meanwhile, the diversity of bacteria and fungi in humans, the environment and wood could be observed. In addition, the four substrates are cultured in two media, MEA and NA, under the same condition. Thus, how nutrients affect the growth of bacteria and fungi could be achieved. During the….
According to the College Board’s website, AP Biology courses are designed to be the equivalent of a college introductory course, usually taken during a biology major’s first year of college. Students who choose to take AP Biology may be allowed to skip over introductory biology courses and enroll in courses in which biology is a prerequisite. Because universities grant college credit for this course, they require that the textbooks, labs, and coursework used by AP courses be equivalent to….
9.4 The Search for Better Health
You have been looking at the different types of diseases that affect the human body and the natural defence mechanisms that maintain health. In this last part of the module you will look at how increased understanding has led to the development of a wide range of strategies to prevent and control disease. In this part you will have the opportunity to: • discuss the role of quarantine in preventing the spread of disease and plants and animals….
Nick Sarris, April 3, 2013, D-Bell Biology
Virtual Electrophoresis Lab – Genetic Science Learning Center
Use the link to complete the following lab.
Submit through edline when you are finished
Title, name, date and bell (8 pts)
Place your answer below the question and skip between questions (2 pts)
Each question is worth 3 points
1. Why can’t DNA be sorted physically, using a microscope?- They are so tiny that they are unable to be….
Which structures, if found in a cell, would provide the best evidence that the cell is eukaryotic?
Where in the cell do the following occur?
Calvin cycle, glycolysis, Kreb's cycle, electron transport chain.
Students in a biology class tested the effects of antibiotics on the growth of bacteria. They cultured bacteria in four glass Petri dishes and then added different amounts of antibiotic to each dish. After the experiment is completed, what should be done with the Petri….
Lab #1 ‐ Introduction to the Microscopy &
Observation of Prokaryotic and Eukaryotic
Many of the cells and organisms that you will be studying are at the lower
limits of visibility of light microscopes; therefore, it is extremely important
that you attain critical lighting and focussing. It is also important to handle
the microscope competently to avoid damaging either the microscope or
the preparation you are studying….
Lab Report: Scientific Method
Your Name: Alyssa Melincoff
Purpose of this Lab
What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain?
To find out how table salt affects the boiling temperature of water.
After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water?
IB SL Biology Lab
Transformation and Electrophoresis
How can a plasmid be engineered to include a foreign piece of DNA and how does gel electrophoresis separate DNA molecules present in a mixture?
If the pGLO plasmid is inserted into competent Escherichia coli cells, then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction….
Objective and Hypothesis: The objective of this lab is to determine the effects of SDS, HCl, and NaOH on red cabbage cell membrane. Prior knowledge can tell us that the red cabbage is a red-purple color due to a pigment called anthocyanin. This is what we will be testing in the experiment. We also know that HCl is a strong acid (very low pH) and that NaOH is a strong base (very high pH). From information learned in this course (lecture/lab) we can assume that both a very high and low pH will….