Ib 150 - Study guides, Class notes & Summaries

IB 150 Exam Questions With Verified Solutions What is the First Law of Thermodynamics? - answerconservation of energy- cannot be created nor destroyed What is Chemical Potential Energy? - answerelectronegativity, an electron has a high CPE when it is far from the positive nucleus What is the Second Law of Thermodynamics? - answerchange of direction, entropy is high in a less organized state How can we use the Second Law of Thermodynamics to determine whether or not a reaction is spontan...

IB 150 - Exam 1 with Questions and Answers kinetic energy ANSWER energy of motion - thermal energy thermal energy ANSWER heat; molecules always moving (vibration) - fast molecule moving --> more heat potential energy ANSWER stored energy (can be converted into motion - KE) - gaining PE due to gravity when move fast uphill First Law of Thermodynamics ANSWER conservation of energy - energy can't be created or destroyed (only changes form) ball and waterfall ANSWER ball at top ...

IB 150 All Practice Homework with Questions and Answers What is one reason that organisms have to maintain homeostasis (maintaining a relatively stable internal environment that differs from the external environment)? ANSWER Organisms have to perpetually keep themselves out of equilibrium with the environment. What can you conclude about an organism that has reached equilibrium with its external environment? ANSWER The organism is dead. Which of the cell shapes in the previous question ...

IB 150 Exam Questions With Verified Solutions What is the First Law of Thermodynamics? - answerconservation of energy- cannot be created nor destroyed What is Chemical Potential Energy? - answerelectronegativity, an electron has a high CPE when it is far from the positive nucleus What is the Second Law of Thermodynamics? - answerchange of direction, entropy is high in a less organized state How can we use the Second Law of Thermodynamics to determine whether or not a reaction is spontan...

IB 150 Exam 2 with Questions and Answers Mutation ANSWER Permanent change in DNA sequence that can be passed from one cell or organism to another; can be the addition, deletion, or substitution of DNA base pairs Ex: Mutation changes DNA sequence, mutation results in an allele for sickle-cell anemia, 50% of the population carries the mutation for sickle cell anemia Crossing Over ANSWER the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics ...

AQA GCSE MATHEMATICS 8300/2F Foundation Tier Paper 2 Calculator Question Paper + Mark scheme [MERGED] June 2022 *junF01* IB/M/Jun22/E9 8300/2F For Examiner’s Use Pages Mark 2–3 4–5 6–7 8–9 10–11 12–13 14–15 16–17 18–19 20–21 22–23 24–25 26–27 TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a calculator • mathematical instruments • the Formulae Sheet (enclosed). Instructions • Use black...

IB 150 Exam 1 Study Set with Questions and Answers Biological science ANSWER The study of life Organism ANSWER A living entity made up of one or more cells 5 fundamental characteristics of an organism ANSWER 1. Cells 2. Replication 3. Information 4. Energy 5. Evolution Hypothesis ANSWER A testable statement based off of scientific theory Theory ANSWER A hypothesis that has been tested with a significant amount of data Experiment ANSWER Allow researchers to test the effect o...

IB 150 Final Exam with Questions and Accurate Solutions List (separately) the inputs and outputs of cellular respiration. ANSWER Inputs: C₆H₁₂O₆, ADP, O2, Pi Outputs: CO₂, H₂O, ATP Differentiate and relate the roles of glucose and ATP in cellular respiration ANSWER They both act as sources of energy to fuel other reactions; however, while ATP is used as fuel for most metabolic reactions, glucose is primarily used in cellular respiration as an energy source to help produce ATP....

IB 150 Exam Questions With Verified Solutions What is the First Law of Thermodynamics? - answerconservation of energy- cannot be created nor destroyed What is Chemical Potential Energy? - answerelectronegativity, an electron has a high CPE when it is far from the positive nucleus What is the Second Law of Thermodynamics? - answerchange of direction, entropy is high in a less organized state How can we use the Second Law of Thermodynamics to determine whether or not a reaction is spontan...

AQA GCSE BIOLOGY 8461/1H Paper 1 Higher Tier Question Paper + Mark scheme [MERGED] June 2022 *JUNH01* IB/M/Jun22/E20 8461/1H For Examiner’s Use Question Mark 1 2 3 4 5 6 7 TOTAL Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at the top of this page. • Answer all questions in th...