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1) Specialized protective coverings around megasporangium which vary in number are called: a. Sporangium b. Integuments c. Integuments d. Pericarp
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2) In which group of tracheophytes ovules are born on the exposed surface of megasporophylls? a. Spheospsida b. Filicineae c. Gymnosperms d. Angiosperms
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3) Pinus Taxus and Picea belong to a. Spheospsida b. Filicineae c. Gymnosperms d. Angiosperms
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4) In life cycle of Pinus megaspores produced by megasporangium divide into 4 megaspores by a. Mitosis b. Meiosis c. Both depending upon the conditions d. None of these
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5) Microspore of a seed plant that contain male gametophyte including the gamete is called a. Pollen grain b. Ovule c. Microgametophyte d. Microsporangium
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6) Monocots are characterized by a. Number of sepals and petals are 2 or multiple of 2 b. Number of sepals and petals are 3 or multiple of 3 c. Number of sepals and petals are 4 or multiple of 4 d. Number of sepals and petals are 5 or multiple of 5
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7) Which of the following statement about dicots is incorrect ? a. They have 4 or 5 sepals and petals or their multiple. b. They have parallel vein pattern on their leaves c. They are both herbaceous and woody d. Vascular bundles are ring shaped in their stems.
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8) Maize is an example of a. Monocot b. Dicot c. Gymnosperms d. none of these
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9) Carbohydrates, fats & proteins are essential for: a. Metabolic processes of an organism b. Providing energy c. Formation of sturctures d. All of these
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10) Magnesium is present in which of the following? a. Cytochromes b. ATP c. Chlorophyll d. Haemoglobin
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11) Deficiency of which of the following causes chlorosis? a. Nitrogen b. Magnesium c. Iron d. Both A and B
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12) Deficiency of K+ causes: a. Stunted growth & strong chlorosis b. No electron transport chains c. Premature death of leaves. d. Stunted growth of roots.
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13) Puccinia is a parasitic: a. Plant b. Fungus c. Animal d. Algae
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14) Autotrophic organisms can exist in an exclusively ______ environment. a. Organic b. Inorganic c. Wet d. Terrestrial
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15) Strong chlorosis is due to the deficiency of _____ in plants. a. Magnesium b. Nitrogen c. Potassium d. Phosphorus
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16) Stunted growth of roots is due to the deficiency of _____ in plants a. Potassium b. Magnesium c. Phosphorus d. Iron.
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17) Puccinia commonly destroys a. Corn b. Tomato c. Dodder d. Wheat
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18) Nodules on roots of leguminous plants have _____ bacteria a. Anaerobic b. Nitrogen fixing c. Nitrifying d. Ammonifying
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19) All of the insectivorous plants are true a. Heterotrophs b. Autotrophes c. Carnivores d. Saprotrophs
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20) The leaf is bilobed with midrib between them. The plant is a. Saraccnia b. Dionaea c. Pitcher plant d. None of these
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21) Of the following, which one has more variety of nutrition? a. Animals b. Bacteria c. Plants d. Fungi
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22) Earthworm is an example of ______ feeder a. Detritus b. Fluid c. Macrophageus d. Filter
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23) Of the following, which one is missing in herbivores? a. Premolars b. Canines c. Incisors d. Molars.
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24) Certain types of whales are also ______ feeder. a. Fluid b. Macrophagous c. Filter d. None of these
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25) Hydra is an example of _______ feeder a. Fluid b. Macrophagous c. Fluid d. All of these
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26) Parasites capable of living independently of its host at times is called as _______ parasite. a. Obligate b. Strict c. Facultative d. Endoparasite
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27) In planaria, numerous small branches which end blindly are called as a. Digestive tract b. Intestinal caeca c. Hepatic caeca d. Both B & C
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28) Midgut in cockroach is a short narrow tube called a. Hepatic caeca b. Gizzard c. Stomach d. Rectum
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29) The partly digested food is stored in ____ in cockroach. a. Gizzard b. Crop c. Hepatic caeca d. Rectum
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30) Hunger contractions are _____ contractions a. Antiperistalsis b. Peristalsis c. Voluntary d. None of these
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31) A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is a. Pyrolysis b. Pyrosis c. Peristalsis d. Dyspepsia
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32) Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is a. Creatin b. Gastrin c. Secretin d. Pepsin
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33) It is about 2.4 meter in length and comprising about two fifth of the small intestine a. Duodenum b. Jejunum c. Ileum d. Caecum
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34) Anus is surrounded by _____ types of muscles a. 2 b. 3 c. 1 d. 4
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35) Incomplete or imperfect digestion is known as a. Obesity b. Dyspepsia c. Anorexia nervous d. Bulimia nervosa
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36) One of the commonest cause of food poisoning are the toxins produced by a. Azobacter b. Nitrosomonas c. Campylobacter d. Nitrobacter
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37) The liquid that escapes during defrosting frozen meat contains _____ bacteria a. Campylobacter b. Nitrobacter c. Azobacter d. Salmonella
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38) Loss of appetite due to the fear of becoming obese is a. Anorexia nervosa b. Bulimia nervosa c. Piles d. Dyspepsia
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39) An illness which largely affects girls usually just after the onset of puberty. a. Bulimia nervosa b. Obesity c. Anorexia nervosa d. None of these
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40) Masses of dilated tortuous veins in the anorectal mucosa are known as a. Bulimia b. Ulcer c. Adipose tissue d. Hemorrhoids
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41) Mastication is carried out by: a. Teeth b. Tongue c. Smooth muscles d. All of these
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42) Dipeptides into amino acids are are converted through a. Amino peptidase b. Erypsin c. Pepsin d. Trypsin
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43) Pepsinogen is produced from a. Mucous cells b. Parietal cells c. Zymogen cells d. All of these
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44) The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called a. Homeostasis b. Hemostasis c. Osmoregualtion d. Thermoregulation
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45) Which of the following statement about Homeostasis is incorrect a. There is a definite control system that regulates the homeostatic activities b. Homeostatic mechanisms keep the internal environment fixed despite of wide changes in external environment c. Because of this the fluctuations of internal environment are of extremely narrow range as compared to that of external environment d. All are correct
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46) In a hot summer after noon, if your body's Homeostatic machinery keep your internal temperature quite lower than that of external than this is an example of a. Positive feed back b. Negative feed back c. Feed back d. Osmoregulation
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47) In osmosis water molecules move from area of _______ to _______ through semipermeable memberane a. Higher solute concentration to lower solute concentration b. Lower solute concentration to higher solute concentration c. Lower solvent concentration to higher solvent concentration d. All of these
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48) Which of the following represents osmoregulatory steps taken by hydrophytes? a. Increases transpiration by increasing the surface area of the leave. b. Small and thick leaves to decrease the surface area proportional to the volume of the leave. c. Stomata closing in sufficient supply, and opening in restricted supply of water. d. None of these
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49) Thick, waxy & leathery cuticle around leaves is present in a. Hydrophytes b. Mesophytes c. Xerophytes d. Halophytes
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50) Rose is an example of a. Hydrophytes b. Mesophytes c. Xerophytes d. Halophytes
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