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Electron beams can not be used to resolve images of objects. T/F? Correct Answer-False In all types of electron microscopy, electrons pass through the specimen. Correct Answer-False This type of light microscopy can be used to view very thin cells or flagella. It does that by using this property of light. Correct Answer-Dark field; Light scattering In this type of microscopy, light is delayed by passing through the sample and so objects look as if they are out of phase. It employs this ...

Antonie van Leeuwenhoek () Correct Answer-"father of microbiology", dutch linen merchant, first to observe living microbes, single-lens magnified up to 300X Edward Jenner Correct Answer-Developed a vaccine for smallpox in 1796 Iganz Semmelweis Correct Answer-hand washing John Snow Correct Answer-Mapped the occurrence of cholera in London Joseph Lister Correct Answer-Began using disinfectants and antiseptics during surgery Louis Pasteur Correct Answer-Began pasteurizing milk to k...

Three domains of life Correct Answer-Eukarya, Bacteria, Archaea Which kingdoms contain unicellular organisms? Correct Answer-Bacteria and Archaea Which kingdoms contain multicellular organisms? Correct Answer-Plants and Animals (including fungi) Robert Hooke Correct Answer-- Built the first compound microscope - 30x power - Observed and drew nematoes, mites, and mold sporangia - Coined the term cell Antoine Van Leeuwenhoek Correct Answer-- Experimented with grinding v powerful le...

what is Trichomonas vaginalis? Correct Answer--STD that only affects women -men can be carriers -vaginal discharge or discomfort what is an example of Plasmodium spp? Correct Answer-Malaria which species of the Plasmodium genus causes the greatest mortality? Correct Answer-P.faliciparum in terms of mosquitoes how are malaria ones different from the zika ones Correct Answer-malaria ones attack at night while zika attacks during the day - aka better controls bc u can sleep in bed with...

Axenic Correct Answer-pure culture Biogeochemical Cycling Correct Answer-Microbes play a role through: harnessing light energy, degrading dead plant and animal matter (including recalcitrant substrates), promote plant growth, fix nitrogen gas, oxidize inorganics, metabolize toxic products Phototrophs Correct Answer-obtain energy from sunlight Heterotrophs Correct Answer-obtain energy from organic compounds Lithotrophs Correct Answer-obtain energy form inorganic compounds Endospore...

10.1Q1 Define three stages of the cell cycle? Correct Answer-Interphase G0: where cells rest G1: where cells grow and expand S: where DNA is replicated G2: where cells repair damaged DNA and duplicate centrosomes Cell division (M) phase Where cells undergo nuclear and cytoplasmic division Each stage has checkpoints that check for completion and accuracy of previous step before starting the next one 10.2Q1 What are cyclin-dependent kinases (Cdks)? Correct Answer-Small family of pro...

Which subatomic particle is displaced when two or more atoms combine make a molecule? Correct Answer-Electrons What type of bond is formed when atoms share electrons? Correct Answer-Covalent What determines the number of covalent bonds an atom can create? Correct Answer-the excess or shortage of electrons in its outermost electron shell. Oxygen with 6 electrons in the outer electron shell (that needs 8 to be complete), can make how many covalent bonds? Correct Answer-2 Which of the f...

Define three stages of the cell cycle? Correct Answer-interphase: the cell grows and makes a copy of its DNA. m phase: the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells cytokinesis: the cytoplasm of the cell is split in two, making two new cells and begins as mitosis ends. What happens during interphase? Correct Answer-The cell grows, copies its DNA, and prepares for cell division in three steps G1, S, G2. What are cyclin-dependent kinases (Cdks)? C...

10.1Q1 Define three stages of the cell cycle? Correct Answer-Interphase G0: where cells rest G1: where cells grow and expand S: where DNA is replicated G2: where cells repair damaged DNA and duplicate centrosomes Cell division (M) phase Where cells undergo nuclear and cytoplasmic division 10.2Q1 What are cyclin-dependent kinases (Cdks)? Correct Answer-A small family of protein kinases that regulate the transition of various phases in the cell cycle. CDKs are small proteins that mainl...

All cells that make up an organism contain the exact same DNA sequence (genome) however individual cell-types look and function very differently. Why? Correct Answer-each cell-type expresses a unique set of genes of the genomic DNA. Speaking of genotype and phenotype how are these terms defined? Correct Answer-the genotype defines the genetic information (gene) and the phenotype the outcome of gene expression. Which of the following describes a functional gene? Correct Answer-a gene is def...