Sl bio Study guides, Class notes & Summaries

IB Biology SL — Topic 1 • Cell Biology with Complete Solutions Cell theory 1. All living things are composed of cells 2. Cells are the smallest unit of life 3. Cells only arise from pre-existing cells Striated muscle cell Exception to cell theory! → Muscle cells fuse to form fibres that may be very long (>300mm) → Consequently, they have multiple nuclei despite being surrounded by a single, continuous plasma membrane → Challenges the idea that cells always funct...

IB BIOLOGY TOPIC 3 GENETICS COMPLETE STUDY GUIDE 2023. HKEXCEL LTD. 1 Topic 3.1 – Genes Genetics x It is the study of variation and inheritance. The basic unit of inheritance is a gene. Gene x A gene is defined as a heritable factor that controls a specific characteristic for an organism, or a section of DNA that codes for the formation of a polypeptide. x A gene occupies a specific position on a chromosome. x A typical animal or plant cell nucleus contains thousands of genes. The ...

IB BIOLOGY TOPIC 6 HUMAN PHYSIOLOGY COMPLETE STUDY GUIDE 2023 HKEXCEL LTD. 1 Topic 6.1 – Digestion and absorption The human digestive system  The parts of the human digestive system are as follows:  Mouth: Ingestion and chewing of food particles. Saliva is secreted in the mouth which contains the enzyme salivary amylase. This enzymes breaks down amylose (starch).  Esophagus: Swallowing the chewed food.  Stomach: Firstly, the stomach secretes pepsin which starts the dige...

2010 TZ1 2. (a) Glucose and galactose are examples of monosaccharides. State one other example of a monosaccharide. (b) The equation below shows the production of glucose and galactose from lactose. (i) There are several different types of carbohydrates. State which type of carbohydrate lactose is. (ii) State the type of chemical reaction that occurs when lactose is digested into glucose and galactose. (c) Lactase is widely used in food processing. Explain three reasons for converting lac...

IB BIOLOGY SL — TOPIC 1 • CELL BIOLOGY QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

Hershey & Chase experiment Experiment target: T2 Bacteriophage (a kind of virus, containing DNA and a protein coat) & E.Coli bacteria How does virus work? • Virus injects their genetic material into cell • Non-genetic part of the virus (protein coat) remains outside the cell • Infected cell produces large amount of viruses based on the genetic material in the cell • The cell bursts releasing copied viruses Experimental methodology: • Amino acid containing radioactive isotopes ...

Pharmacokinetics - AnswerInvolves ADME (absorption, distribution, metabolism and elimination). Absorption: absorption from the administration site either directly or indirectly into the blood/plasma. Distribution: reversibly or irreversibly move from the bloodstream into the interstitial and intracellular fluid. Metabolism: bio-transformed via hepatic metabolism or by other tissues. Elimination: lastly, the drug & its metabolites are eliminated from the body The route of administration wi...

IOT day 1 100% accurate!! shoulder percentage - ANSWER55%, SL, SB, Pushlock, FW knee percentage - ANSWER57%, TR, ACL disposable dex percentage - ANSWER36%, anchors, ankle fx TR, achilles I&R percentage - ANSWER75% pump, shaver, synergy bio percentage - ANSWER58% angel, graft, flex arthroplasty percentage - ANSWER83% univers, revers, tka all 4 are x amount of sales - ANSWER63% x of all arthrex sales related to soft tissue - ANSWER73% why

largest shoulder revenue products - ANSWERswivel & speedbridge, push lock, fiber wire (55%) largest knee revenue products - ANSWERTR, interference screw, ACL disposables (57%) largest DEX revenue products - ANSWERanchors, ankle fx/TR, Pars (36%) largest I&R revenue products - ANSWERpump tubing, shaver, synergy (75%) largest bio revenue products - ANSWERangel/ACP, grafts, arthroflex (58%) largest arthroplasty rev products - ANSWERuniverse &apex, revers, TKA (83%) top 4 rev prods...

IB BIOLOGY TOPIC 1 CELL BIOLOGY QUESTIONS AND ANSWERS COMPLETE STUDY GUIDE 2023 IB Biology Topic 1: Cell Biology 1. Cell theory: The theory that cells form the fundamental structural and functional units of all living organisms. 2. Differentiation: The expression of a particular gene(s) and not others in order for cell specialisation. 3. Emergent properties: The idea that the sum of an organism is more than the parts interacting and combining. Living things become more complex as they...