Genius Jnr - (a) Define nutrition. Why is nutrition necessary for an organism? (b) What are the different modes of nutrition? Explain with one example of each mode of nutrition. (c) Name the mode of nutrition in (i) roundworm, and (ii) Plasmodium.

preparing for upcoming exams? we've got you covered

registration for

geniusjnr olympiads

is now open

be the best - among the bests

02 Nov 2020

(a) Define nutrition. Why is nutrition necessary for an organism?
(b) What are the different modes of nutrition? Explain with one example of each mode of nutrition.
(c) Name the mode of nutrition in (i) roundworm, and (ii) Plasmodium.

similar questions

Addition Carbon Dioxide Water State Two Conditions Necessary Process Photosynthesis Take Place Name Process Plants Make Food Name One Organism Saprophytic Parasitic Holozoic Modes Nutrition Mode Nutrition Fungi Name Two Inorganic Substances Used Autotrophs Make Food Following Autotroph Green Plant Man Following Type Energy Used Living Organisms Perform Vital Life Processes Kinetic Energy Chemical Ene Basic Requirement Living Organisms Obtaining Energy Chlorophyll Mainly Present Plant Apart Carbon Dioxide Water Name Four Raw Materials Needed Plants Name Organelle Plant Cells Photosynthesis Occurs Name Pigment Absorb Solar Energy Name Pigment Leaves Absorbs Sunlight Energy B Colour Pigment Boil Leaf Alcohol Testing Starch Substance Used Remove Chlorophyll Green Leaf Photosynthesis Experiments Leaves Plant First Prepare Food Photosynthesis Food Gets Converted Food B B Name Gas Used Photosynthesis B Name Gas Produced Photosynthesis Apart Sunlight Chlorophyll Things Required Make Food Photosynthesis Name Unicellular Animal Uses Cilia Move Food Particles Mouth Part Body Undigested Food Egested Amoeba Substances Enter Food Vacuole Amoeba Break Food Amoeba Engulf Food Particle Arrange Following Processes Involved Nutrition Animals Correct Order Take Place Assimilation Egestio Name Green Pigment Present Leaves Plant Scientific Name Animals Meat Eaters Ii Plant Eaters Iii Plant Meat Eaters Animals Divided Three Groups Basis Eating Habits Name Three Groups Name Animal Whose Process Obtaining Food Called Phagocytosis Name Cells Leaf Plant Control Opening Closing Stomata Name Biological Catalysts Bring Chemical Digestion Food Digested Food Absorbed Blood Human Body Name Opening Human Body Though Undigested Food Thrown Part Digestive System Water Absorbed Name Tiny Projections Inner Surface Small Intestine Help Absorbing Digested Food Substance Mixed Food Mouth Chewing Teeth Name Food Pipe Moves Food Digestive Organs Organs Perform Following Functions Humans Absorption Food Ii Absorption Water Name Enzyme Present Human Saliva Type Food Material Digested Enzyme Define Saprophyte Ii Parasite Name Two Saprophytes Two Parasites Define Saprophytic Nutrition Ii Parasitic Nutrition Iii Holozoic Nutrition Give One Example Type Plants Obtain Food B Plants Need Nitrogen Plants Obtain Nitrogen Photosynthesis Converts Energy X Energy X B State Various Steps Involved Process Photosynthesis Define Nutrient Name Four Important Nutrients Present Food B Various Types Heterotrophic Nutrition Heterotrophs Give One Example Heterotrophs B Difference Autotrophic Nutrition Heterotrophic Nutriti Autotrophs Give One Example Autotrophs B Conditions Necessary Autotrophic Nutrition Criteria Used Decide Whether Something Alive B Meant Life Processes Name Basic Life Processes Commo Chlorophyll Part Chlorophyll Play Photosynthesis B Simple Food Prepared First Process Photosynthesi Fill Following Blanks Suitable Words Green Plants B Non Green Plants Animals C Heterotrophs Depend F Common Cuscuta Ticks Leeches B Name Substances Following Enzymes Act Human Digestive System Trypsin Match Terms Column Column Ii Column Column Ii Trypsin Liver Ii Amylase B Gastric Glands Iii Bile C P Name Following Process Plants Converts Light Energy Chemical Energy B Organisms Cannot Prepare Food Match Organisms Given Column Processes Given Column Ii Column Column Ii Leech Holozoic Nutrition Ii Functions Liver Pancreas Human Digestive System Part Body Secretes Bile Bile Stored Function Bile B Trypsin Function Role Hydrochloric Acid Stomach B Function Enzymes Human Digestive System Substances Contained Pancreatic Juice Functions Substances Contained Gastric Juice Functions Carbon Dioxide Air Enter Leaves Plant Used Photosynthesis B Water Soil Reach Leaves Plant Used Phot Draw Labelled Diagram Human Digestive System Help Diagram Describe Process Digestion Food Man Human Describe Process Nutrition Amoeba Draw Labelled Diagrams Show Various Steps Nutrition Amoeba B Mode Herbivores Carnivores Omnivores Give Two Examples B Classify Following Herbivores Carnivores Omnivo Define Nutrition Nutrition Necessary Organism B Different Modes Nutrition Explain One Example Mode Name Raw Materials Required Photosynthesis Plants Obtain Raw Materials B Various Conditions Necessa Photosynthesis B Write Chemical Equation Show Process Photosynthesis Plants C Explain Mechanism Pho Leaves Healthy Potted Plant Coated Vaseline Plant Remain Healthy Long Give Reason Answer B Happen R Would Happen Green Plants Disappear Earth B Plant Releasing Carbon Dioxide Taking Oxygen Day Mean P Guard Cells Regulate Opening Closing Stomatel Pores B Two Similar Green Plants Kept Separately Oxyg Small Intestine Herbivores Longer Carnivores B Happen Mucus Secreted Gastric Glands C Causes Moveme Human Digestive System Bile Secreted Pancreas B Liver C Kidneys Stomach Process Digestion Humans Completed Oesophagus B Small Intestine C Stomach Large Intestine Process Digestion Food Humans Begins Stomach B Food Pipe C Mouth Small Intestine Length Small Intestine Human Adult 4 5 B 1 5 C 3 5 6 5 One Following Organisms Saprophytic Mode Nutrition Organism Mushroom B Malarial Parasite C Leech Lic Organism Parasitic Mode Nutrition Penicillium B Plasmodium C Paramecium Parrot Process Obtaining Food Amoeba Known Dialysis B Cytokinesis C Phagocytosis Amoebiasis Following Longest Small Intestine Carnivore B Omnivore C Herbivore Autotroph Name Main Organs Human Digestive System Also Name Associated Glands B Carbohydrates Fats Proteins G Describe Parts Tooth Help Labelled Diagram B Meant Dental Caries Caused C Dental Plaque Harm Format Part Alimentary Canal Receives Bile Liver Oesophagus B Small Intestine C Stomach Large Intestine Inner Lining Stomach Protected One Following Harmful Effect Hydrochloric Acid Pepsin B Mucus C Saliv Proteins First Digested Alimentary Canal Small Intestine B Oesophagus C Mouth Stomach Following Correct Statement Regarding Bile Secreted Bile Duct Stores Liver B Secreted Gall Bladder S Pancreatic Juice Contains Enzymes Digest Proteins Carbohydrates B Proteins Fats C Fats Carbohydrates Carrying Starch Test Leaf Important Boil Leaf Alcohol Dissolve Waxy Cuticle B Make Cells Permeable I Human Digestive System Enzymes Pepsin Trypsin Secreted Respectively Pancreas Liver B Stomach Salivar Correct Order Steps Occurring Nutrition Animals Ingestion Absorption Digestion Assimilation Egestion Autotrophic Mode Nutrition Requires Carbon Dioxide Water B Chlorophyll C Sunlight Two Following Organisms Holozoic Mode Nutrition Organisms Paramecium Plasmodium B Plasmodium Parakee First Enzyme Mix Food Digestive Tract Pepsin B Cellulose C Amylase Trypsin Plants Absorb Nitrogen One Following Forms Proteins B Nitrates Nitrites C Urea Atmospheric Nitrogen Opening Closing Stomatal Pores Depends Upon Oxygen B Water Guard Cells C Temperature Concentration C Following Events Occur Photosynthesis Conversion Light Energy Chemical Energy B Reduction Carbon Dio Internal Energy Cellular Energy Reserve Autotrophs Proteins B Fatty Acids C Glycogen Starch Following Incorrect Statement Energy Essential Life Processes B Organisms Grow Time C Movement Molec Oxygen Liberated Photosynthesis Green Plants Comes Glucose B Water C Carbon Dioxide Chlorophyll Following Correct Functions Two Components Pancreatic Juice Trypsin Lipase Trypsin Digests Proteins Saliva Lacking Salivary Amylase Following Processes Taking Place Buccal Cavity Affected Proteins Bre Following Component Food Digested Enzyme Present Saliva Well Pancreatic Juice Proteins B Fat C Miner Organisms B C Obtain Food Three Different Ways Organism Derives Food Body Another Living Organism Ca Four Organisms B C Organism Eats Flesh Animals Food Organism B Eat Grains Fruits Vegetables Well Mea Unicellular Animal P Fixed Shape Ingests Food Particle Forming Temporary Finger Like Projections Q F Partially Digested Food Coming Stomach Person Enters Long Narrow Organ Body Organ Receives Secretion Person Puts Food Mouth Teeth Cut Small Pieces Chew Grind Glands Mouth Secrete Substance B Mixed Food Teeth Cleaned Regularly Become Covered Sticky Yellowish Layer W Food Particles Bacteria Since Layer Person Eats Sugary Food Organisms Present Mouth Act Sugar Produce Substance B Substance B First Diss Following Correct Sequence Parts Occur Human Alimentary Canal Mouth Stomach Small Intestine Oesophag Following Groups Organisms Food Material Broken Outside Body Absorbed Mushroom Green Plants Amoeba B Following Correct Statement Heterotrophs Synthesise Food B Heterotrophs Utilize Solar Energy Photosy Name Pores Leaf Respiratory Exchange Gases Takes Place Name Process Plant Parts Like Roots Stems Leaves Get Oxygen Required Respiration Part Roots Involved Exchange Respiratory Gases Name Substance Whose Build Muscles Vigorous Physical Exercise May Cause Cramps Type Respiration Aerobic Anaerobic Energy Released Name One Organism Live Without Oxygen Name One Substance Produced Anaerobic Respiration Organism Aerobic Respiration Cells Use Oxygen Produce Energy X Wild Animal Eats Flesh Animals Whereas Domestic Animal Feeds Mainly Green Grass Animals Like X Kno Organism Cannot Move One Place Another Makes Simple Food B Substances C Available Environment Food M Name Red Pigment Carries Oxygen Blood Blood Absorb Oxygen Human Body Trachea Divides Tow Tubes Lower End Name Tubes Name Two Animals Breathe Gills Name Animal Depends Simple Diffusion Gases Breathing Name Animal Absorbs Oxygen Moist Skin Name Organs Breathing Fish Photosynthesis Respiration Plants Process Occurs Time B Daytime Name Extensions Epidermal Cells Root Help Respiration Name Areas Woody Stem Respiratory Exchange Gases Takes Place Differences Aerobic Anaerobic Respiration Name Organisms Use Anaerobic Mode Respiration Explain Land Plant May Die Roots Remain Waterlogged Long Time Fill Following Blanks Suitable Words Organs Respiration Man B Actual Exchange Gases Takes Place Lung State Whether Following Statements True False Respiration Plants Take Co2 Release O2 B Energy Produc Lungs Substance Taken Body B Substance Removed Body Organs Attached Two Bronchi Name Wind Pipe Name Tiny Air Sacs End Smallest Bronchioles Lungs Lungs Gas Exchange Take Place Gases Exchanged Lungs Describe Process Respiration Fish State Three Common Features Respiratory Organs Like Skin Gills Lungs Describe Process Respiration Amoeba State Whether Anaerobic Respiration Aerobic Respiration Explain Dangerous Inhale Air Containing Carbon Monoxide Explain Air Taken Let Breathing Lungs Always Contain Residual Volume Air Define Breathing State Differences Breathing Respiration Name Type Respiration End Products C2h5oh Co2 B Co2 H2o C Lactic Acid Give One Example Case Respirat Type Respiration Takes Place Human Muscles Vigorous Physical Exercise Give Reason Answer Name Final Product Products Obtained Anaerobic Respiration Takes Place Plant Like Yeast B Animal Tis Explain Air Breathe Gets Cleaned Passing Nasal Passage B Walls Trachea Collapse Less Air C Oxygen C Function Respiratory System B Major Organs Respiratory System Man Humans C Draw Labelled Diagram Hu Explain Would Benefit Deep Sea Divers Humans Also Gills Explain Plants Low Energy Needs Compared Animals Name Energy Currency Living Organisms Produced Rate Breathing Aquatic Organisms Much Faster Terrestrial Organisms Fishes Die Taken Water Meant Aquatic Animals Terrestrial Animals B Aquatic Animals Terrestrial Animals Obtain Oxygen Breat Describe Process Respiration Following Parts Plant Root B Stem C Leaves Would Consequences Deficiency Haemoglobin Bodies Internal Respiration May Defined Breathing Releasing Oxygen Tissue B Oxidation Food Substances Relea Following Increases Muscle Cells Lacking Oxygen Carbon Dioxide B Lactose C Lactic Acid Uric Acid Following Correct Process Anaerobic Respiration Carbon Dioxide Always Produced Lot Energy Released Y Respiration Exchange Gases Takes Place Bronchi B Alveoli C Bronchioles Trachea One Following Organisms Live Without Oxygen Air Organism Amoeba B Yak C Yeast Leech Following Produced Anaerobic Respiration Unicellular Fungus C2h5oh B H2o C Co2 Atp Diffusion Insufficient Meet Oxygen Requirements Large Multicellular Organisms Like Humans B Type Ar Respiration Vital Function Body Justify Statements B Main Difference Aerobic Respiration Anaerobic Give Main Points Difference Respiration Plants Respiration Animals B Describe Exchange Gases Takes Breathing Respiration Woody Stem Plant Takes Place Root Hair B Lenticels C Closed Stomata Open Stoma Photosynthesis Plant Taking Place Day Time Plant Releasing Water Vapour B Oxygen C Carbon Dioxide One Following Animals Use Tracheae Respiratory Organs Animal Grasshopper B Prawn C Mosquito Cockroac Two Organisms Breathe Moist Skin Fish Frog B Frog Earthworm C Leech Earthworm Fish Earthworm Following Statements True Respiration Inhalation Ribs Move Inward Diaphragm Raised Ii Gaseous Exchan Following Statements Correct Pyruvate Converted Ethanol Carbon Dioxide Yeast Ii Fermentation Takes P Lack Oxygen Muscles Often Leads Cramps Legs Sprinters Due Conversion Pyruvate Ethanol B Carbon Dioxi Following Correct Sequence Air Passage Inhalation Nostrils Larynx Pharynx Trachea Lungs B Nasal Pass Air Blown Mouth Test Tube Containing Lime Water Lime Water Turns Milky Due Presence Oxygen B Carbon Person Breathes Air Air Enters Body Organ Two Holes B Air Passes Pharynx Larynx Enters Tube C Tube C Consider Following Chemical Reactions Take Place Different Organisms Tissues Various Conditions Gluc Sugar Solution Taken Test Tube Little Substance X Powder Form Added Mouth Test Tube Closed Cork Allo Five Animals P Q R Animal P Always Lives Water Gills Breathing Animal Q Stay Water Well Land Breathe B C Three Living Organisms Organism Unicellullar Fungus Live Without Air Used Commercial Production Respiration Organism 1 Molecule Glucose Produces 2 Atp Molecules Whereas Respiration Another Organis Following Likely Much Higher Breathing Rate Man B Fish C Dog Sparrow Cockroaches Air Enters Body Lungs B Gills C Spiracles Skin Marathon Sometimes Get Painful Contractions Leg Muscles Due Accumulation One Following Leg Muscles C One Following Organism Depend Simple Diffusion Gases Breathing Respiration Organism Amoeba B Prawn C Dirty Blood Body Filtered Gaseous Waste Products Excreted Plants Name Largest Artery Ii Largest Vein Body Stops Blood Flowing Backwards Heart Blood Absorb Oxygen Veins Arteries Carry Blood Carry Blood Away Heart B Back Heart Organ Acts Pump Circulatory System Substance Substances Transported Plants Xylem Vessels Tracheids B Sieve Tubes Phloem Name Tissues Transport Food Plant B Water Minerals Plant Organism X Breathing Organs Lives Land Organism X Goes Water Cannot Survive Long Time Unless Carryin Process Plant Accomplished Utilising Energy Atp Transport Water Minerals Transport Food State Term Used Transport Food Leaves Parts Plant Name Conducting Tissue Plants Made Living Cells B Dead Cells Name Conducting Tissue Plants Made Sieve Tubes Alongwith Companion Cells Name Main Vein Name Two Liquids Help Transport Substances Human Body Xylem Phloem One Carries Materials Upwards Well Downwards B Upwards Components Transport System Highly Organised Plants Following Terms Choose One Term Includes Four Plasma Platelets Blood Rbc Wbc Name Procedure Used Working Artificial Kidney Fill Following Blanks Suitable Words Gums Resins Products Plants B Bowman Capsule Tubule Taken Toget Name High Blood Pressure Role Glomerulus Kidney Name Two Waste Products Human Body Produced Body Cells Happens Glucose Enters Nephron Tubule Alongwith Filtrate Name Two Parts Plant Gaseous Waste Products Released Air State Whether Following Statements True False Organisms Store Wastes Body Parts B Value Systolic Pre Name One Animal Single Circulation Blood Another Double Circulation Name Waste Gas Released Plants Day Time B Night Time Name Two Types Transport Systems Human Beings Many Types Blood Vessels Human Body Name B Heart Need Valves Liquid Part Blood Called Function Platelets Blood People Need Use Dialysis Machine Machine Job Done Kidneys B Kidneys Excrete C Name Tubes Connect Kidneys Bladder Bladder Body Define Excretion Name Excretory Unit Kidney Match Terms Column Uses Column Ii Column Column Ii Heart Pipes Transport Humans Ii Arteries Veins B Draw Labelled Diagram Xylem Vessel Ii Sieve Tube Phloem B Differences Transport Materials Xylem Phl Transpiration B Mean Translocation Respect Transport Plants C Plant Tissue Involved Translocation X Phloem Tissue Phloem Contains Two Types Cells Joined Side Side Name Two Types Cells State Whether Ce Xylem Tissue Name Two Kinds Cells Xylem Tissue State Whether Cells Living Dead Meant Heart Beat Usual Heart Beat Rate Rest B Change Occurs Heart Beats Person Runs Meant Systolic Pressure Diastolic Pressure Normal Values Human Organ Systems Human Systems Following Associated Vena Cava Ii Glomerulus Iii Alveoli Iv Villi Various Components Blood State Functions Hypertension Caused Harm Lymph State Two Major Functions Lymph B Meant Saying Blood Pressure Person 120 80 Methods Used Plants Get Rid Waste Products B Waste Products Excreted Amoeba Upper Parts Heart Called B Lower Parts Heart Called C Name Blood Vessels Connect Arteries Veins Sid State Differences Artery Vein Capillary Dialysis Machine Contains Long Tubes Coiled Tank Containing Dialysing Solution Substance Tubes Made One Following Nucleus One Red Blood Cell B White Blood Cell C Guard Cell Epidermal Cell Transport Materials Necessary Organism Plant Animal B Need Special Tissues Organs Transport Substan Meant Dialysis Type Patients Put Dialysis B Explain Principle Dialysis Help Labelled Diagram Describe Mechanism Urine Formation Human Excretory System Draw Labelled Diagram Illustrate Answer B Name Various Organs Human Excretory System B Draw Neat Labelled Diagram Human Excretory System C Fu Lymphatic System Function B Blood Pressure Two Factors Used Express Blood Pressure Person C Name Ma Name Red Pigment Carries Oxygen Blood B Necessary Separate Oxygenated Deoxygenated Blood Mammals Bi Describe Working Human Blood Circulatory System Help Suitable Diagram Shows Steps Involved Meant Human Circulatory System Name Organs Circulatory System Humans B Draw Diagram Human Heart Lab Blood Red B State Functions Blood Body C Name Circulatory Fluid Human Body Blood Prevents Backflow Blood Inside Heart Contraction Thick Muscular Walls Ventricles B Valves C Thin Wal Blood Leaving Tissues Becomes Richer Carbon Dioxide B Water C Haemoglobin Oxygen Blood Pumped Heart Entire Body Lungs B Ventricles C Atria Nerves Blood Vessel Carries Blood Back Heart Artery B Vein C Capillary Platelet Water Absorption Roots Increased Keeping Potted Plants Shade B Dim Light C Fan Covered Polythene Bag Patient Put Dialysis Likely Suffering Severe Ailment Circulatory System B Respiratory System C Excre One Following Constituent Blood One Red Blood Cells B White Blood Cells C Sieve Plates Platelets Following Carries Substances Upwards Well Downwards Plant Xylem B Companion Cells C Phloem Tracheids Animal Oxygenation Blood Take Place Lungs Cow B Fish C Frog Fox Component Blood Makes Chemicals Known Antibodies Platelets B White Blood Cell C Red Blood Cells Plas Process Carrying Food Leaves Parts Plant Called Transpiration B Transportation C Translocation Trans One Following Cytoplasm Nucleus Xylem Vessel B Sieve Tube C Tracheid Companion Cell Following Largest Amounts Nitrogen Excreted Mammalian Body Breath B Sweat C Urine Faeces Following Three Chambered Heart Pigeon B Lizard C Fish Lion Phloem Tissue Plants Responsible Transport Water B Water Minerals C Sugar Found People Living High Mountains Many Red Corpuscles Blood People Living Plains One Following Best Blood Vessel Carry Carbon Dioxide Pulmonary Artery B Vena Cava C Hepatic Vein Pulmonary Vein Vein Brings Clean Blood Lungs Heart Renal Vein B Pulmonary Vein C Vena Cava Hepatic Vein Following Vertebrate Group Groups Heart Pump Oxygenated Blood Different Parts Body Pisces Amphibians Following Correct Path Taken Urine Body Kidney Ureter Urethra Bladder B Kidney Bladder Urethra Urete Procedure Cleaning Blood Person Using Kidney Machine Known Ketolysis B Hydrolysis C Dialysis Photoly Substance Reabsorbed Blood Capillaries Surrounding Tubule Nephron Mainly Glucose B Amino Acid C Urea Excretory Unit Human Excretory System Called Nephron B Neuron C Nephridia Kidneyon Instrument Measuring Blood Pressure Called Manometer B Sphygmomanometer C Barometer Potentiometer Blood Vessel Carries Oxygenated Blood Lungs Heart Main Artery B Pulmonary Artery C Main Vein Pulmona Coagulation Blood Cut Wound Brought Plasma B Platelets C Wbc Rbc Following Accomplished Plant Utilising Energy Stored Atp Transport Food B Transport Water Minerals C One Following Valves Heart B Arteries C Capillaries Veins Following Helps Upward Movement Water Dissolved Minerals Roots Leaves Stem Transportation B Transloc Following Conducting Tissue Non Flowering Plants Xylem Vessels B Sieve Tubes C Companion Cells Trach Liquid X Colour Circulates Human Body One Direction Body Tissues Heart Among Things Liquid X Contain Human Body Organ Acts Double Pump Oxygenated Blood Coming Lungs Blood Vessel B Enters Upper Left Cha Liquid Connective Tissue Circulates Body Continuously Without Stopping Tissue Contains Pigment B Imp Water Dissolved Minerals Get Root Hair Plant Process Called Enter Conducting Tissue B Process C Help Transport System Plants Consists Two Kinds Tissues X Tissue X Made Living Cells Consists Two Compone Animal Double Circulation Three Chambered Heart Fish B Snake C Deer Sparrow Autotrophs Water Transported Root Hair B Phloem C Stomata Xylem Wave Expansion Artery Blood Forced Called Flow B Heart Beat C Pulse Ticking Cells Blood Destroy Disease Causing Germs Platelets B Skin Cells C Rbcs Wbcs Excretory Organs Earthworm Nephridia B Nephrons C Raphides Ureters Organs Person Damaged Completely Due Much Poisonous Waste Material B Started Accumulating Blood Maki Pair Bean Shaped Organs P Human Body Towards Back Waist Waste Product Q Formed Decomposition Unused Following Known Energy Currency Cells Biology Dtp B Pdp C Atp Ddt Different Ways Glucose Oxidised Provide Energy Various Organisms Give One Example One Following Organisms Gaseous Exchange Repiration Take Place Cell Membrane Skin Organism Electric Deficiency Oxygen Tissues Human Beings Pyruvic Acid Converted Lactic Acid Cytoplasm B Chloroplast C