Biology Form Five - 100 Homework Questions & 25-Question Model Exam

Form Five Advanced Level Biology bridges secondary school foundations with rigorous tertiary biological, biochemical, and medical sciences. Authored strictly inalignment with the Tanzania Institute of Education (TIE) Advanced Level Biology Syllabus and the Dadisi Digital Library (Grade 5 Biology), this volume delivers
complete mastery across the 10 official topics:
• Cell Biology: Classical and modern cell theory; prokaryotic vs eukaryotic ultrastructure; Singer-Nicolson fluid mosaic membrane model; endomembrane protein
trafficking (RER, Golgi, exocytosis); biological macromolecules (α/β-glucose, triglycerides vs phospholipids, protein structures, DNA/RNA); enzyme kinetics
(Michaelis-Menten, competitive vs non-competitive inhibition).
• Photosynthesis: Chloroplast compartmentalisation; photosynthetic pigments (chlorophylls, carotenoids); non-cyclic (Z-scheme) and cyclic photophosphorylation;
Calvin cycle (carboxylation, reduction, RuBP regeneration); photorespiration (C2 cycle); C4 Hatch-Slack pathway and Kranz anatomy; CAM temporal separation;
Blackman's limiting factors; Emerson enhancement effect; Hill reaction.
• Digestive Tissues: Classification and histology of epithelial tissues; gastric mucosa (parietal, chief, G-cells); small intestine mucosa (villi, microvilli, SGLT-1, micelles,
chylomicrons); exocrine pancreas acini and zymogen activation; liver lobule architecture, sinusoids, Kupffer cells, and bile secretion; colonic water absorption;
neuro-hormonal regulation (gastrin, secretin, CCK).
• Gaseous Exchange & Respiration in Mammals: Alveolar-capillary barrier and Fick's Law; pulmonary surfactant (Type II pneumocytes, Law of Laplace); oxygen
transport, positive cooperativity, and Bohr effect; carbon dioxide transport and the chloride shift (Hamburger phenomenon); glycolysis, link reaction, Krebs cycle, and
mitochondrial chemiosmotic oxidative phosphorylation; lactic fermentation, oxygen debt (EPOC), and the Cori cycle; Respiratory Quotient (RQ).
• Gaseous Exchange in Plants: Guard cell anatomy and radial micellation; potassium ion (K+) active influx theory and proton pumping; Sayre's starch-sugar
hypothesis; role of malate; ABA drought-induced closure; lenticels; pneumatophores in mangroves; compensation points; aerenchyma formation.
• Coordination: Resting membrane potential (-70 mV); action potential phases (depolarisation, repolarisation, refractory periods); saltatory conduction; cholinergic
synaptic transmission; spatial vs temporal summation; eye photoreception (rhodopsin bleaching), accommodation, and visual defects; auditory transduction in Organ of
Corti; vestibular static/dynamic equilibrium.
• Plant Hormones: Auxin (IAA) acid growth hypothesis; phototropism (Cholodny-Went hypothesis); apical dominance and hormone balance; gibberellins and cereal
germination; cytokinins and organogenesis; ethylene in climacteric ripening and triple response; ABA in seed dormancy; commercial applications (2,4-D, rooting
powders, ethephon); photoperiodism, phytochromes (Pr/Pfr), and systemic defense hormones (SA, JA).
• Regulation in Mammals: Principles of homeostasis and negative/positive feedback; thermoregulation in cold (shivering, BAT thermogenin, vasoconstriction) and heat
(vasodilation, sweating); nephron anatomy (cortical vs juxtamedullary); glomerular ultrafiltration and Starling forces (NFP); PCT selective reabsorption; countercurrent
multiplier in Loop of Henle and vasa recta; ADH osmoregulation; RAAS pathway.
• Classification and Taxonomy: Phenetics vs cladistics; Woese's three-domain system (16S rRNA, Archaea ether lipids); taxonomic ranks and binomial nomenclature;
biological species concept and reproductive isolating mechanisms; Kingdoms Protista, Fungi, Plantae (bryophyte vs pteridophyte vs spermatophyte lifecycle), Animalia
coelomate plans, and Phylum Chordata vertebrate classes.
• Biological Investigation: Scientific method and variable control; microscope calibration (eyepiece graticule, stage micrometer); linear magnification (M = I/A);