Biology lab final exam - Study guides, Class notes & Summaries

Whether in a gas, a liquid, or a semisolid, diffusion always occurs. correct answer: from high to low solute concentration Which dye would you predict to move the fastest (and thus go furthest in a given time period) through agar? correct answer: Potassium permanganate (mw= 158) The spreading out of molecular from a center of higher concentration is the result of correct answer: The random movements of molecules What determines the direction of diffusion? correct answer: concentrati...

During DNA replication, correct answer: each parental strand serves as a template for the synthesis of a complementary strand How would the shape of a DNA molecule change if adenine paired with guanine and cytosine paired with thymine? correct answer: The DNA molecule would have irregular widths along its length. Which of the following is true about double-stranded DNA? correct answer: Its strands have a sugar-phosphate backbone. Why is DNA extraction and isolation an important labor...

Cotton plugs or screw caps are used in test tubes containing sterile media or pure cultures to - a. Prevent unfiltered air or dust particles from entering the tubes, maintain anaerobic conditions and prevent the culture from spilling The pH indicator in Simmon's citrate agar is what? - a. Bromthymol Blue Bacteria that show no preference, grow equally well in aerobic or anaerobic conditions are - a. Facultative The protein that DOES NOT give milk its white color is - a. Albumin Beef extra...

Microbiology LAB Final Exam LSUE with correct Answers.

Biology Microbiology Final Exam Essential Microbiology with Lab 2022 (30 Questions and Answers)- Portage Learning Match each of the following organelles with the correct description. Briefly explain how a Transmission Electron Microscope (TEM) forms an image of subcellular organelles, substrates, and viral particles. Match each of the following diseases to the correct bacterial family Describe the primary distinction between prokaryotic and eukaryotic cells Match each of the following term...

DNA is used as a template for making correct answer: proteins and RNA. A student was testing whether PTC tasting ability correlated with amount of coffee consumed. She tested determined the lowest concentration of PTC that an individual could taste and rated it on a scale from 1-14. Then, she surveyed each individual about the number of cups of coffee that they consume a week. Her data can be seen below. correct answer: here does not appear to be a relationship between PTC tasting and coffe...

Proteins that act as catalysts; or a protein that functions as a catalyst for a chemical reaction. - correct answer -Enzymes Substances that regulate the rate of chemical reactions but do not unite permanently with reactants - correct answer -Catalysis Heat, acids, and bases break the weak hydrogen bonds holding the protein together. This ruins the unique shape of the protein in a process called....? - correct answer -Denaturation The region of the enzyme where contact is made between t...

Proteins that act as catalysts; or a protein that functions as a catalyst for a chemical reaction. correct answer: Enzymes Substances that regulate the rate of chemical reactions but do not unite permanently with reactants correct answer: Catalysis Heat, acids, and bases break the weak hydrogen bonds holding the protein together. This ruins the unique shape of the protein in a process called....? correct answer: Denaturation The region of the enzyme where contact is made between the ...

Microbiology LAB Final Exam LSUE Exam Questions With 100% Correct Answers. Cotton plugs or screw caps are used in test tubes containing sterile media or pure cultures to a. Prevent unfiltered air or dust particles from entering the tubes, maintain anaerobic conditions and prevent the culture from spilling The pH indicator in Simmon's citrate agar is what? a. Bromthymol Blue Bacteria that show no preference, grow equally well in aerobic or anaerobic conditions are a. Facultative The pro...

Biology 122 Lab Practical Final Exam Questions Updated 2024. What organ is this slide from and name the structure the arrow is pointing at? 3) What type of epithelial cells are we looking at? 4) What type of epithelial cells are all of these (arrow)?