Biol 203 exam 1 - Study guides, Class notes & Summaries

BIOL 203 FINAL EXAM 2024 CHEAT SHEET 60 EXPECTED QUESTIONS AND ANSWERS Concordia University BIOL 203 FINAL EXAM 2024 CHEAT SHEET 60 EXPECTED QUESTIONS AND ANSWERS Concordia University 1- The doubly labeled water: Select one: a. is a method of direct calorimetric measurement of metabolic rate. b. measures the body fat percentage. c. measures the body water percentage. d. is considered an invasive technique though! e. requires a couple of weeks to provide accurate data. 2- L...

What is the path of light through the compound microscope? - ANSWER Light source --> condenser --> specimen --> objective lens --> ocular lens The image from the objective lens is magnified again by the ocular lens. What are the steps of a gram-stain? - ANSWER 1) Primary stain (crystal violet) - 1 minute 2) Mordant (Gram's iodine) - 1 minute 3) Decolorizing agent (ethanol) - 5 seconds 4) Counterstain (safranin) - 1 minute *blot dry, not wipe What is this specimen? -...

What is the path of light through the compound microscope? - ANSWER Light source --> condenser --> specimen --> objective lens --> ocular lens The image from the objective lens is magnified again by the ocular lens. What are the steps of a gram-stain? - ANSWER 1) Primary stain (crystal violet) - 1 minute 2) Mordant (Gram's iodine) - 1 minute 3) Decolorizing agent (ethanol) - 5 seconds 4) Counterstain (safranin) - 1 minute *blot dry, not wipe What is this specimen? -...

microorganism  are organisms that are too small to be seen with the unaided eye microbes  1. decomposed in organic waste  2. to produce chemicals (ethanol and acetone)  3. an important role in the ecosystem by photosynthesis (O2 and C6H12O6)  4. to ferment food (cheese, vinegar)  5. produce production use in treatment (insulin) Linnaens  establish the system of scientific names each organisms has two names  1. the genus 2. the specific epithet ~ 1 ~ fo...

What is the path of light through the compound microscope? - ANSWER Light source --> condenser --> specimen --> objective lens --> ocular lens The image from the objective lens is magnified again by the ocular lens. What are the steps of a gram-stain? - ANSWER 1) Primary stain (crystal violet) - 1 minute 2) Mordant (Gram's iodine) - 1 minute 3) Decolorizing agent (ethanol) - 5 seconds 4) Counterstain (safranin) - 1 minute *blot dry, not wipe What is this specimen? -...

Bio 203 Exam 4 practice test questions & answers (100% Correct) What is the reason that closely linked genes are typically inherited together? The likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? Activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? Mixing a heat-killing pathogenic strain of bacteri...