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1) The autotrophic mode of nutrition requires: [1]a) Sunlightb) All of thesec) Carbon dioxide and waterd) Chlorophyll 2) On complete digestion of fats, the end products are [1]a) Glucose and amino acidsb) Fatty acids and glycerolc) Glucose and glycerold) Fatty acid and amino acids 3) Anaerobic process [1]a) Takes place in yeast during fermentationb) Produces only energy in the muscles of human beingsc) Takes place in the presence of oxygend) Produces ethanol, oxygen, and energy 4) Which of these reactions occurs during photosynthesis?a) Carbon dioxide and water are both oxidizedb) Carbon dioxide and water are both reducedc) Water is reduced and carbon dioxide is oxidizedd) Carbon dioxide is reduced and water is oxidized 5) The internal (cellular) energy reserve in autotrophs is [1]a) Protein b) Glycogenc) Starch d) Fatty acid6) The given figure shows the pathway of a nerve impulsein a reflex action. Which part serves as a link betweenneurons?a) X b) W c) Z d) Y7) An organism which breaks down the food material outsidethe body and then absorbs it is [1]a) A bacteria, Rhizobiumb) A plant parasite, Cuscutac) An animal parasite, Tapewormd) A fungi, Rhizopus8) The filtration units of kidneys are called [1]a) Neurons b) Nephronsc) Ureter d) Urethra9) During contraction of heart, what prevents back flow ofblood? [1]a) Thin walls of atriab) Valves in heartc) Thick muscular walls of ventriclesd) All of the these10) Experiment to show that CO2 is given out during respiration, the type of respiration is: [1]a) Aerobicb) Anaerobicc) Neither Anaerobic nor aerobicd) Both anaerobic and aerobic11) Which of the following equations is the summary ofphotosynthesis? [1]a) 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2Ob) 6CO2 + 12H2O + Chlorophyll + Sunlight →C6H12O6 + 6CO2 + 6H2Oc) 6CO2 + 12H2O + Chlorophyll + Sunlight →C6H12O6 + 6O2 + 6H2Od) 6CO2 + H2O + Sunlight → C6H12O6 + O2 + 6H2O12) When iodine was added to a particular vegetable thathad been crushed into a paste, blue - black colour wasobtained. This indicates the presence of [1]a) Starch b) Glucosec) Protein d) Sugar13) During vigorous exercise, the occurrence of cramps in theouter muscles of an athlete is due to the conversion ofpyruvate to: [1]a) Lactose b) Glucosec) Lactic acid d) Ethanol14) The process in which loss of water in the form of vapoursfrom the aerial parts of plants takes place is X, whichhelps in Y. Here X and Y respectively are: [1]a) Transpiration and photosynthesis.b) Translocation and absorption of water and mineralsfrom soil by roots.c) Translocation and movement of soluble products ofphotosynthesis in phloem.d) Transpiration and temperature regulation.15) In which part of the alimentary canal food is finallydigested? [1]a) Large intestine b) Stomachc) Mouth cavity d) Small intestine16) Water in the root enters due to: [1]a) The function of the root to absorb water.b) Diffusion of water in the roots.c) Difference in the concentration of ions between theroot and the soil.d) Excess water present in the soil.17) The final product of glycolsis is [1]a) Pyruvic acid b) Glucosec) Malic acid d) Acetyl COA18) Which of the following statements are correct regardingtranspiration?i. The rate of transpiration is directly proportional tothe relative humidity.ii. It regulates plant temperature.iii. Very low temperature, closes stomata and hence decreases rate of transpiration.2iv. It causes ascent of sap.[1]a) (i), (ii) and (iv) onlyb) (ii), (iii) and (iv) onlyc) (i), (ii) and (iii) onlyd) (i) and (iv) only19) Which of the following enzyme helps in breaking sucroseinto glucose and fructose? [1]a) Invertase b) Zymasec) Diastase d) Maltase20) Name a plant that does not have a transport system. [1]a) Banana tree b) Mango treec) Chlamydomonas d) Banyan tree21) Oxygen liberated during photosynthesis comes from [1]a) Glucose b) Chlorophyllc) Water d) Carbon dioxide22) The process in which transport of soluble products ofphotosynthesis takes place in plants is known as: [1]a) Translocation b) Conductionc) Transpiration d) Evaporation23) In the experiment to demonstrate that CO2 is given outduring respiration, what would you observe in the deliverytube dipped in water? [1]a) Water turns milky but does not rise in the deliverytube.b) Water level in the delivery tube remains unchanged.c) Water turns milky and rises in the delivery tube.d) Water level rises in the delivery tube.24) Which part of alimentary canal receives bile from theliver? [1]a) Large intestine b) Oesophagusc) Small intestine d) Stomach25) The process of photosynthesis occurs in: [1]a) Infrared radiation b) UV radiationc) Dark d) Visible light26) Sita is supposed to face an interview. During the firstfive minutes before the interview she experiences sweating, increased rate of heartbeat, increased respiratory rate,etc. Which of the following hormones has increased inher blood and is responsible for her restlessness [1]a) Adrenaline b) GnRHc) Insulin d) Estrogen27) Choose the function of the pancreatic juice from thefollowing [1]a) Trypsin digests emulsified fats and lipase proteinsb) Trypsin digests proteins and lipase carbohydratesc) Trypsin and lipase digest fatsd) Trypsin digests proteins and lipase emulsified fats28) Which of these is not a part of the small intestine? [1]a) Jejunum b) Ileumc) Duodenum d) Rectum29) Which of the following is most appropriate for aerobicrespiration? [1]a) Glucose cytoplasm−−−−−−→ pyruvate + Energy mitochondria−−−−−−−−−→CO2+ H2O + Energyb) Glucose cytoplasm−−−−−−→ pyruvate + Energy mitochondria−−−−−−−−−→CO2+ H2Oc) Glucose cytoplasm−−−−−−→ pyruvate mitochondria−−−−−−−−−→ CO2+H2O + Energyd) Glucose mitochondria−−−−−−−−−→ pyruvatecytoplasm−−−−−−→ CO2+H2O + Energy30) A few drops of iodine solution were added to rice water.The solution turned blue - black in colour. This indicatesthat rice water contains [1]a) Starch b) Complex proteinsc) Fats d) Simple proteins31) The process complementary to respiration is . [1]a) Photosynthesis b) Transpirationc) Circulation d) Osmoregulation32) Name a body part where anaerobic respiration takes place.[1]a) Cytoplasm b) Mitochondriac) Chloroplast d) Protoplasm33) Refer to the following figure of phloem tissue. Which ofthe following statements correctly describes the relationship between cells Y and Z?[1]a) Y provides the carbohydrates that are transported byZ.b) Ycontains ribosomes that synthesise proteins requiredby Z.c) Y transports sucrose, while Z transports water andminerals.d) Y helps to filter the liquid transported in Z to facilitate translocation.34) Seeds taken in the conical flask during respiration experiment must be [1]a) Dry gram seedsb) Boiled gram seedsc) Wet gram seedsd) Germinating gram seeds35) What are the end products of fat digestion? [1]a) Amino acid, fatty acidb) Glycerol, amino acidc) Fatty acid, glycerold) Glucose, amino acid36) Which is the correct sequence of parts in the humanalimentary canal? [1]a) Mouth→ oesophagus → small intestine → largeintestineb) Mouth→ stomach → small intestine → oesophagus → large intestinec) Mouth→ oesophagus → stomach → large intestine → small intestined) Mouth→ oesophagus → stomach → small intestine → large intestine37) Opening and closing of stomata is due to [1]a) Diffusion of CO2 in and out of the guard cells.b) High pressure of gases inside the cells.3c) Stimulus of light in the guard cells.d) Movement of water in and out of the guard cells.38) The pancreatic juice does not contain one of the followingenzymes. [1]a) Lipase b) Trypsinc) Ptyalin d) Amylase39) Which of the following precautions are to be taken fora successful run of the experiment to show that carbondioxide is given out during respiration?i. Cork should be airtight.ii. Seeds in the flask should be totally dry.iii. A small tube with a freshly prepared KOH solutionshould be placed in the flask.iv. The end of the delivery tube should be above waterlevel.The correct answer is [1]a) A, B and D b) A and Bc) A, B and C d) A and C40) In submerged water plants like Hydrilla: [1]a) Carbon dioxide is not needed for photosynthesisb) Light is necessary for photosynthesisc) Photosynthesis does not occurd) Light is not needed for photosynthesis41) Which is the first step of photosynthesis? [1]a) Excitation of electron of chlorophyllb) Attachment of CO2 to 5 - carbon sugarc) Formation of ATPd) Ionization of water42) Name the passage that leads bile from the liver into thegall bladder. [1]a) Colon b) Cystic ductc) Caecum d) Rectum43) Some raisins weighed 10 gm before they were placed inwater for four hours. The raisins were then removed,wiped and weighed again. Their weight was now foundto be 12.5 gm. The percentage of water absorbed bythem is [1]a) 5% b) 25%c) 12.5% d) 2.5%44) To observe stomata under microscope Swati took the leafpeal from Tradescantia leaf from lower surface of leaf:[1]a) She should take from upper surfaceb) She should not take from leaf surfacec) She should take from tip of the leafd) She had taken the correct surface for leaf peel45) Which liquid did a student use for putting a drop onthe slide before placing the coverslip while preparing atemporary mount of leaf epidermal peel? [1]a) Safranin b) Iodinec) Glycerine d) Water46) The teacher instructed the student to place a healthy pottedshoe flower plant in a dark room for 24 hours prior toan experiment on photosynthesis. The purpose of placingit in a dark room is: [1]a) To activate the chloroplasts in the leavesb) To denature the enzymes in the leavesc) To increase the intake of carbon dioxided) To destarch the leaves47) During deficiency of oxygen in tissues of human beings,pyruvic acid is converted into lactic acid in the [1]a) Mitochondria b) Cytoplasmc) Golgi body d) Chloroplast48) Which of the following component of our food is digestedby an enzyme which is present in saliva as well as inpancreatic juice? [1]a) Fats b) Proteinsc) Carbohydrates d) Minerals49) The function of KOH in the experimental set - up toshow that CO2 is released during respiration is [1]a) To remove water vapour from the flaskb) To absorb carbon dioxide released by germinatingseedsc) To enhance respirationd) To release oxygen for respiration50) The energy - rich compound produced through respirationis [1]a) ADP b) Pyruvic acidc) ATP d) AMP51) A factor not affecting photosynthesis is [1]a) Wind velocityb) Light intensityc) Temperatured) Carbon dioxide concentration in air52) To prepare a good temporary mount of the petunia leafpeel showing many stomata, the student has to get thepeel from the [1]a) Point of attachment of the leaf to its petiole.b) Lower surface of the leafc) Tip of the leafd) Upper surface of the leaf53) In the experiment, to show CO2 is given out during respiration. Atul put boil gram seeds in a conical flask.According to his observation, the water level in the benttube: [1]a) Rise or decreases in water level depends on theroom temperatureb) Risesc) Decreasesd) Remains the same54) Single circulation i.e., blood flows through the heart onlyonce during one cycle of passage through the body, isexhibited by [1]a) Whale, Dolphin, Turtleb) Hyla, Rana, Dracoc) Hippocampus, Exocoetus, Anabasd) Labeo, Chameleon, Salamander55) Which of the following is not correctly paired with itsfunction? [1]a) Pons - Regulates respirationb) Medulla oblongata - Controls rate of heart beatc) Temporal lobe - Auditory receptiond) Parietal lobe - Visual reception56) In the experiment to show that carbon dioxide is releasedduring respiration the small test tube of KOH solution issuspended inside the conical flask to absorb the: [1]a) Oxygen of the flask.b) Moisture of the flask.c) Air of the flask.4d) Carbon dioxide of the flask released by the seeds.57) In human beings, when the process of digestion is completed, the (i) proteins, (ii) carbohydrates, and (iii) fatsare respectively finally converted into: [1]a) Amino acids, (ii) glucose and (iii) fatty acidsb) Glucose, (ii) fatty acids and glycerol, (iii) aminoacidsc) Sugars, (ii) amino acids, (iii) fatty acids and glycerold) Amino acids, (ii) glucose, (iii) fatty acids and glycerol58) When students observed a stained epidermal peel of aleaf under the microscope, it appeared pinkish red. Thestain used was [1]a) Colchicine b) Acetocarminec) Safranin d) Iodine59) Which of the following does not respire through the lungs?[1]a) Duck b) Whalec) Tadpole d) Frog60) If salivary amylase is lacking in the saliva, which of thefollowing events in the mouth cavity will be affected?[1]a) Fats breaking down into fatty acids and glycerolb) Absorption of vitaminsc) Starch breaking down into sugarsd) Proteins breaking down into amino acids61) Under the high power objective of a microscope, anepidermal peel of a leaf shows [1]a) Stomata surrounded by several epidermal cellsb) Stomata surrounding by a pair of guard cells eachc) Stomata surrounding many guard cellsd) Stomata surrounded by several guard cells each62) When the cell is kept in a hypertonic solution, then watermoves [1]a) Out of the cell b) No movement of waterc) Movement of water d) Into the cell63) Choose the event that does not occur in photosynthesis.[1]a) Reduction of carbon dioxide to carbohydratesb) Oxidation of carbon to carbon dioxidec) Absorption of light energy by chlorophylld) Conversion of light energy to chemical energy64) Most of the digestion and absorption of the food takesplace in the [1]a) Small intestine b) Stomachc) Large intestine d) Liver65) Ridhima put lime water in the beaker. She finds limewater turns milky. It means [1]a) Presence of KOH in conical flask in the test tubeb) Absence of NaOHc) Presence of lime with germinating seedsd) Absence of KOH66) A student covered a leaf from a de - starched plant witha black paper strip and kept it in the garden outside hishouse in fresh air. In the evening, he tested the coveredportion of the leaf for the presence of starch. By doingso the student was trying to show that: [1]a) Light is necessary for photosynthesis.b) Carbon dioxide is necessary for photosynthesis.c) Chlorophyll is necessary for photosynthesis.d) Carbon dioxide is given out during respiration.67) After completing the experiment three students A, B andC found that the percentage of absorption of water is10%, 20% and 25% respectively. Who had put raisinsmore time in the water? [1]a) C b) Ac) A and C d) B68) To set - up the experiment to show that light is necessaryfor photosynthesis, experimental leaves should be takenfor use from [1]a) Any flowering plantb) Destarched potted plantc) Starched potted plantd) Newly emerged sapling69) In an airtight experimental set - up which was used byyou in the laboratory to study respiration in germinatingseeds, the seeds obtained the oxygen for respiration from[1]a) Water used for soaking the seedsb) Air in the flaskc) Water in the germinating seedsd) Water in the beaker70) In the experiment to show that carbon dioxide is givenout during respiration, the student use: [1]a) KOH solution b) Alcoholc) Lime water d) Iodine solution71) A black strip of paper was clipped onto a destarched leafin a potted plant to cover a part of the leaf. The plantwas then exposed to sunlight for four hours, the paperstrip was removed and the leaf was tested for starch.When iodine solution was added: [1]a) The entire leaf turned blue - black.b) The covered part of the leaf became blue - black.c) The uncovered part of the leaf became blue - black.d) The colour of the iodine solution remain unchanged.72) A well - stained leaf peel mount when observing underthe high power of a microscope shows nuclei in [1]a) Only guard cellsb) Only epidermal cellsc) Guard cells, epidermal cells and stoma.d) Guard cells and epidermal cells73) Choose the correct path of urine in our body [1]a) Kidney→ Urinary bladder → Urethra → Ureterb) Urinary bladder→ Kidney → Ureter → Urethrac) Kidney→ Ureters → Urinary bladder → Urethrad) Kidney→ Ureter → Urethra → Urinary bladder

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