Magnification equation - Study guides, Class notes & Summaries

AQA A LEVEL BIOLOGY Paper 1 2024 What is the function of the cell membrane? - ANS To control what enters and leaves the cell, acts as a barrier between the cell and its environment. What structural feature of the cell membrane allows substances to enter/leave? - ANS Partially permeable What is the fluid mosaic model? - ANS States that a membrane is a fluid structure (because phospholipids are constantly moving) with a "mosaic" of various proteins embedded in it Describe the...

Magnification equation - ANSWER Magnification= image size/actual object size Light microscope- how many um in 1 mm - ANSWER 1000 um light microscope- how many nm in 1 um - ANSWER 1000 nm

BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update True or False: A virus is considered a microorganism. False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 1. What is the smallest biological unit of life? A cell. ...

Rf value correct answers Distance travelled by substance / distance travelled by solvent Thin lens equation correct answers 1/f = 1/O + 1/I Ohm's law correct answers V=IR Volts Index of refraction correct answers n=c/v Energy of a photon correct answers E=hf Joules Work correct answers W = force x distance Joules Ideal Gas Law Equation and assumptions correct answers PV=nRT Intermolecular forces are negligible Individual molecular volume is negligible STP conditions ...

IB Biology Unit 1 Latest Update Graded A+ Cell theory 3 main principles All organisms are composed of one or more cells cells are the smallest units of life all cells come from pre-existing cells 7 functions of life (MR H GREN) metabolism reproduction homeostasis growth excretion response nutrition Paramecium unicellular membrane of the kingdom known as Protista. Look at powerpoint on isa247 to see how this organism displays the functions of life. chlorella single-cell...

Physics Chapter 24, 25, 26, 27 Actual Real Tested Questions And Correct Answers 100% {With Clear Images And Calculations} You will begin with a relatively standard calculation. Consider a concave spherical mirror with a radius of curvature equal to 60.0 centimeters. An object 6.00 centimeters tall is placed along the axis of the mirror, 45.0 centimeters from the mirror. You What is the focal length f of this mirror? 30 Now use the spherical mirror equation to find the image di...

GCSE AQA Biology Higher (Triple) Exam with Standard Questions and Expert Answers Two types of microscope: ANSWER -Light Microscope -Electron Microscope Light Microscope: ANSWER -the type of microscope used in a classroom -magnify x2000 -resolving power 200nm -living samples -can view in colour Electron Microscope ANSWER -found in big labs -expensive -magnify x2,000,000 -resolving power 0.2nm -black and white, can be coloured in or dyed Magnification Equation ANSWER magni...

lab 1: What did caffeine and ethanol do to the heart rate of the Daphnia? correct answers Caffeine speeds up the heart rate and alcohol slows it down lab 1: know independent vs dependent variable correct answers independent- one or more factors that the scientist varies during the experiment dependent- measured in order to determine if it changes in response to the independent variable lab 1: mean, median, mode, range correct answers mean- average, median- number in the middle, mode- occu...

Two types of cells - correct answer - Eukaryotic (complex) - Prokaryotic (smaller and simpler) Animal cell - correct answer -nucleus -Cytoplasm -Membrane -Mitochondria (Involved In Reactions For Respiration) -Ribosomes (Involved in protein synthesis) Plant Cell - correct answer - cell wall - chloroplasts (chloryphyll, photosynthesis) - center vacuole (maintains cell pressure) Bacteria Cell - correct answer - no nucleus - plasmid dna (small loops) - flagella (tail) - cell ...

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...