32 Chapter No. 15
MULTIPLE CHOICE QUESTIONS
Four possible answers are given for the following questions. Tick the correct
answer.
(1) The protection of internal environment from the harms of fluctuations in external
environment is termed as.
(a) Thermoregulation (b) Homeostasis
(c) Osmoregulation (d) Excretion
(2) Most susceptible components of internal environment that may be affected by
fluctuations in external environments are all except.
(a) Water (b) Solutes (c) Hormones (d) Temperature
(3) Maintenance of internal temperature within a tolerable range is designated
(a) Osmoregulation (b) Thermoregulation (c) Excretion (d)
Homeostasis
(4) It would not let the body flooded with water in abundant supply and also not to
dehydrate in dry conditions.
(a) Receptor (b) Effector (c) Enzyme (d) Control system (5)
The diluted solution compared to the cell concentration is designated as.
(a) Isototic (b) Hypertonic (c) Hypotonic (d) Isoosmotic
(6) The environment osmotically causes entry of water into the cell and renders the
cell solutions diluted.
(a) Hypotonic (b) Hypertonic (c) Isotonic (d) None
(7) These plants have the adaptations to remove the flooding Of its cells in fresh water.
(a) Mesophytes (b) Xerophytes (c) Halophytes (d) Hydrophytes
(8) Which of following is not a mesophyte.
(a) Brassica (b) Cactus (c) Rose (d) Mango
(9) They have the adaptations for reduced rate of transpiration.
(c) (d)
, (a) Xerophytes (b) Halophytes (c) Hydrophytes (d) Mesophytes
(10) These animals thus do not require actively to adjust their internal osmotic state, are
known as.
(a) Osmoregulators(b) Osmoconformers(c) Thermoregulators(d) Cold blooded
(11) Among the vertebrates there are isotonic with the surrounding sea's water.
Chapter NO. 15
(a) Sharks (b) Hagfishes (c) Amphibians (d) Bony fishes
(12) Which of following is involved for osmoregutation is cartilagenous fishes.
(a) Gills (b) Kidneys (c) Rectal glands (d) All
(13) Some fishes have relatively low salts in body fluids but have rendered these
hypertonic to that of sea's water by retaining.
(a) Ammonia (b) Urea (c) Water (d) Proteins
(14) It is analogous of vertebrate kidney.
(a) Food vacuole (b) Contractile vacuole (c) Mitochondria (d) None
(15) There have successfully adapted to terrestrial mode of life.
(a) Arthropods (b) Vertebrates (c) Fishes (d) Both a and b
(16) Terrestrial animals can tolerate dehydration and it differs in various animals. This
characteristics is known as.
(a) Dehydration (b) Rehydration (C) Anhydrobiosis (d) Conservation
(17) In plants could be looked upon as a waste product of photosynthesis.
(a) Carbon (b) Oxygen (c) Water (d) Oxygen and water
(18) They actively secrete waste compounds into the soil, occasionally using them as
chemical weapons against other competing plants.
(a) Wheat (b) Rose (c) Conifers (d) Mango
(19) In the catabolism of amino acids the amino group NH:) is replaced, it is called.
(a) Digestion (b) Deamination (c) Urea cycle (d) Nitrification
(20) Which of following is most toxic nitrogenous waste.
(a) Ammonia (b) Urea (c) Uric acid (d) C02
(21) About water is needed to excrete lg of ammonia nitrogen.
(a) Iml (b) 50m1 (c) 500m1 (d) 51itre
(c) (d)
MULTIPLE CHOICE QUESTIONS
Four possible answers are given for the following questions. Tick the correct
answer.
(1) The protection of internal environment from the harms of fluctuations in external
environment is termed as.
(a) Thermoregulation (b) Homeostasis
(c) Osmoregulation (d) Excretion
(2) Most susceptible components of internal environment that may be affected by
fluctuations in external environments are all except.
(a) Water (b) Solutes (c) Hormones (d) Temperature
(3) Maintenance of internal temperature within a tolerable range is designated
(a) Osmoregulation (b) Thermoregulation (c) Excretion (d)
Homeostasis
(4) It would not let the body flooded with water in abundant supply and also not to
dehydrate in dry conditions.
(a) Receptor (b) Effector (c) Enzyme (d) Control system (5)
The diluted solution compared to the cell concentration is designated as.
(a) Isototic (b) Hypertonic (c) Hypotonic (d) Isoosmotic
(6) The environment osmotically causes entry of water into the cell and renders the
cell solutions diluted.
(a) Hypotonic (b) Hypertonic (c) Isotonic (d) None
(7) These plants have the adaptations to remove the flooding Of its cells in fresh water.
(a) Mesophytes (b) Xerophytes (c) Halophytes (d) Hydrophytes
(8) Which of following is not a mesophyte.
(a) Brassica (b) Cactus (c) Rose (d) Mango
(9) They have the adaptations for reduced rate of transpiration.
(c) (d)
, (a) Xerophytes (b) Halophytes (c) Hydrophytes (d) Mesophytes
(10) These animals thus do not require actively to adjust their internal osmotic state, are
known as.
(a) Osmoregulators(b) Osmoconformers(c) Thermoregulators(d) Cold blooded
(11) Among the vertebrates there are isotonic with the surrounding sea's water.
Chapter NO. 15
(a) Sharks (b) Hagfishes (c) Amphibians (d) Bony fishes
(12) Which of following is involved for osmoregutation is cartilagenous fishes.
(a) Gills (b) Kidneys (c) Rectal glands (d) All
(13) Some fishes have relatively low salts in body fluids but have rendered these
hypertonic to that of sea's water by retaining.
(a) Ammonia (b) Urea (c) Water (d) Proteins
(14) It is analogous of vertebrate kidney.
(a) Food vacuole (b) Contractile vacuole (c) Mitochondria (d) None
(15) There have successfully adapted to terrestrial mode of life.
(a) Arthropods (b) Vertebrates (c) Fishes (d) Both a and b
(16) Terrestrial animals can tolerate dehydration and it differs in various animals. This
characteristics is known as.
(a) Dehydration (b) Rehydration (C) Anhydrobiosis (d) Conservation
(17) In plants could be looked upon as a waste product of photosynthesis.
(a) Carbon (b) Oxygen (c) Water (d) Oxygen and water
(18) They actively secrete waste compounds into the soil, occasionally using them as
chemical weapons against other competing plants.
(a) Wheat (b) Rose (c) Conifers (d) Mango
(19) In the catabolism of amino acids the amino group NH:) is replaced, it is called.
(a) Digestion (b) Deamination (c) Urea cycle (d) Nitrification
(20) Which of following is most toxic nitrogenous waste.
(a) Ammonia (b) Urea (c) Uric acid (d) C02
(21) About water is needed to excrete lg of ammonia nitrogen.
(a) Iml (b) 50m1 (c) 500m1 (d) 51itre
(c) (d)
