Biology sl - Study guides, Revision notes & Summaries

IB Bio SL 2, covers: Cell Respiration; Photosynthesis; Species, Communities, and Ecosystems; Energy Flow; Carbon Cycling; Evidence for Evolution; Natural Selection; Classification of Biodiversity; Cladistics; Digestion; The Blood System; Gas Exchange; Nutrition; The Heart

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 t...

Adaptive Radiation (divergent evolution) - Multiple species off of original species Certain members of the species exploit a different niche of their ecosystem Alexander flemming - Scientist was first to notice mold and noticed that all bacteria around the mold was dead. This lead to massive production of pennisullin Allele Frequencies - Measure of the proportion of a specific variation of a gene in a population Analogous structure: - structures may have same function but different internal...

IB BIOLOGY - MOLECULAR BIOLOGY (TOPIC 2 SL) QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

HESI A2 POCKET PREP WITH COMPETE SOLUTIONS 100% 2023/2024 Most cell components are referred to as which of the following a. chromosomes b. organelles c. metabolic pathways d. Ribosomes - correct answer b The cell is the fundamental unit of biology. There two types of cells: prokaryotic and eukaryotic cells. Cells consist of many components , most of which are referred to as organelles During the glycolysis process of cellular respiration, what is produced a. Two ATP molecules, ...

IB SL Biology - Proteins and Enzymes Exam Questions and Answers

This Biology IA looks researches "Pupillary light reflex under 5 levels of light intensity exposure". It has scored full marks in 2021 year's IB session

IB biology past essay questions HL and SL all units and mark scheme 2023 (A+) Outline what is meant by the trophic level of an organism with three examples from one named habitat. (4 max) - Answer-feeding level for an organism in a food chain naming of habitat (1 mark) naming three trophic levels correctly (1 mark) three examples forming a food chain from the named habitat (1 mark) 2. Compare the ways in which autotrophic, heterotrophic and saprotrophic organisms obtain energy. (6 ma...