Biology osmosis observation

The following points highlight the top six experiments on osmosis in plants. Some of the experiments are: Demonstration of the Phenomenon of Osmosis 2.

Biology osmosis observation

Biology osmosis observation

Diversity in Living World What is living? Five kingdom classification; Salient features and classification of Monera; Protista and Fungi into major groups; Lichens; Viruses and Viroids. Salient features and classification of plants into major groups- Algae, Bryophytes, Pteridophytes, Gymnosperm and Angiosperm three to five salient and distinguishing features and at least two examples of each category ; Angiosperms- classification up to class, characteristic features and examples.

Salient features and classification of animals- non chordate up to phyla level and chordate up to classes level three to five salient features and at least two examples. Structural Organisation in Animals and Plants Morphology and modifications; Tissues; Anatomy and functions of different parts of flowering plants: Root, stem, leaf, inflorescence- cymose and racemose, flower, fruit and seed To be dealt along with the relevant practical of the Practical Syllabus.

Biology osmosis observation

Animal tissues; Morphology, anatomy and functions of different systems digestive, circulatory, respiratory, nervous and reproductive of an insect cockroach.

Brief account only III. Cell Structure and Function Cell theory and cell as the basic unit of life; Structure of prokaryotic and eukaryotic cell; Plant cell and animal cell; Cell envelope, cell membrane, cell wall; Cell organelles— structure and function; Endomembrane system- endoplasmic reticulum, Golgi bodies, lysosomes, vacuoles; mitochondria, ribosomes, plastids, microbodies; Cytoskeleton, cilia, flagella, centrioles ultra structure and function ; Nucleus—nuclear membrane, chromatin, nucleolus.

Chemical constituents of living cells: Biomolecules—structure and function of proteins, carbodydrates, lipid, nucleic acids; Enzymes—types, properties, enzyme action. Cell cycle, mitosis, meiosis and their significance. Plant Physiology Transport in plants: Movement of water, gases and nutrients; Cell to cell transport— Diffusion, facilitated diffusion, active transport; Plant — water relations— Imbibition, water potential, osmosis, plasmolysis; Long distance transport of water— Absorption, apoplast, symplast, transpiration pull, root pressure and guttation; Transpiration— Opening and closing of stomata; Uptake and translocation of mineral nutrients— Transport of food, phloem transport, Mass flow hypothesis; Diffusion of gases brief mention.

Essential minerals, macro and micronutrients and their role; Deficiency symptoms; Mineral toxicity; Elementary idea of Hydroponics as a method to study mineral nutrition; Nitrogen metabolism — Nitrogen cycle, biological nitrogen fixation. Exchange of gases; Cellular respiration — glycolysis, fermentation anaerobicTCA cycle and electron transport system aerobic ; Energy relations — Number of ATP molecules generated; Amphibolic pathways; Respiratory quotient.

Plant growth and development: Seed germination; Phases of plant growth and plant growth rate; Conditions of growth; Differentiation, dedifferentiation and redifferentiation; Sequence of developmental process in a plant cell; Growth regulators—auxin, gibberellin, cytokinin, ethylene, ABA; Seed dormancy; Vernalisation; Photoperiodism.

Human Physiology Digestion and absorption: Alimentary canal and digestive glands; Role of digestive enzymes and gastrointestinal hormones; Peristalsis, digestion, absorption and assimilation of proteins, carbohydrates and fats; Calorific value of proteins, carbohydrates and fats for box item not to be evaluated ; Egestion; Nutritional and digestive disorders— PEM, indigestion, constipation, vomiting, jaundice, diarrhea.

Respiratory organs in animals recall only ; Respiratory system in humans; Mechanism of breathing and its regulation in humans— Exchange of gases, transport of gases and regulation of respiration, Respiratory volumes; Disorders related to respiration-Asthma, Emphysema, Occupational respiratory disorders.

Body fluids and circulation: Composition of blood, blood groups, coagulation of blood; Composition of lymph and its function; Human circulatory system— Structure of human heart and blood vessels; Cardiac cycle, cardiac output, ECG; Double circulation; Regulation of cardiac activity; Disorders of circulatory system-Hypertension, Coronary artery disease, Angina pectoris, Heart failure.

Excretory products and their elimination: Modes of excretion —Ammonotelism, ureotelism, uricotelism; Human excretory system—structure and fuction; Urine formation, Osmoregulation; Regulation of kidney function— Renin-angiotensin, Atrial Natriuretic Factor, ADH and Diabetes insipidus; Role of other organs in excretion; Disorders-Uraemia, Renal failure, Renal calculi, Nephritis; Dialysis and artificial kidney.

Types of movement — ciliary, flagellar, muscular; Skeletal muscle — contractile proteins and muscle contraction; Skeletal system and its functions To be dealt with the relevant practical of Practical syllabus ; Joints; Disorders of muscular and skeletal system- Myasthenia gravis, Tetany, Muscular dystrophy, Arthritis, Osteoporosis, Gout.

Neural control and coordination: Neuron and nerves; Nervous system in humans— central nervous system, peripheral nervous system and visceral nervous system; Generation and conduction of nerve impulse; Reflex action; Sensory perception; Sense organs; Elementary structure and function of eye and ear.

Chemical coordination and regulation: Endocrine glands and hormones; Human endocrine system- Hypothalamus, Pituitary, Pineal, Thyroid, Parathyroid, Adrenal, Pancreas, Gonads; Mechanism of hormone action Elementary Idea ; Role of hormones as messengers and regulators, Hypo-and hyperactivity and related disorders Common disorders e.

Diseases related to all the human physiology systems to be taught in brief. List of experiments Study and describe three locally available common flowering plants from each of the following families Solanaceae, Fabaceae and Liliaceae including dissection and display of floral whorls and anther and ovary to show number of chambers.

Types of root Tap and Adventitious ; Stem Herbaceous and woody ; Leaf arrangement, shape, venation, simple and compound. Preparation and study of T. Study of osmosis by potato osmometer.

Study of plasmolysis in epidermal peels e. Rhoeo leaves Study of distribution of stomata in the upper and lower surface of leaves.CBSE class 11 biology covers the living world, biological classification, plant kingdom, animal kingdom, morphology of flowering plants, anatomy of flowering plants, structural organisation in animals, cell the unit of life, biomolecules, cell cycle and cell division, transport in plants, mineral nutrition, photosynthesis in higher plants, respiration in .

Observing Osmosis. It is difficult to see osmosis occurring in cells because of the small size of the cell. However, there are a few cells that can be seen without the aid of a microscope. EVERYTHING you need to teach osmosis! This resource pack includes an excellent power point presentation, which slowly introduces the concept of osmosis, step-by-step instilling key concepts including ideas on Turgidity, plasmolysis and flaccidity.

Lab 1 Osmosis & Diffusion Osmosis Lab Introduction: Cells have kinetic energy. This causes the molecules of the cell to move around and bump into each other. Diffusion is one result of this molecular movement. Diffusion is the random movement of molecules from an area of higher concentration to areas of lower concentration.

Osmosis . Students must be given the opportunity to experience all of the biology AT criteria during their GCSE science course, regardless of the awarding body whose specification they .

Biology laboratory work: Osmosis observation Measuring the dependence of net mass gain in potato pieces on concentration of sugar solution By Jonas Kulikauskas.

Senior Biology - 'Deadly' Extended Experimental Investigations