Question No:1
One of the most important functions of botanical gardens is that
(A) they provide area for recreation
(B) they allow ex-situ conservation of germplasm
(C) they provide natural habitat for wildlife
(D) they have collection of all tropical plants
Question No:2
Taxonomic hierarchy refers to
(A) a list of biologists who worked on taxonomy
(B) a group of taxonomists who decide the nomanclature rules
(C) stepwise arrangement of all categories for classification of plants and animals
(D) classification based only on evolutionary relationships
Question No:3
Binomial nomenclature means
(A) two names to a plant; one latinized and other regional
(B) two names given by two scientists
(C) one name with a generic and a specific epithet
(D) two scientists giving the same name
Question No:4
Living organisms are characterised by
(A) catabolism
(B) Irritability
(C) Anabolism
(D) all of these
Question No:5
The lowest level of organization among following is
(A) landscapes
(B) ecosystems
(C) populations
(D) communities
Question No:6
Which of the following hierarchy is correct with reference to levels of biological organization?
(A) Species —> Communities —> Population —> Ecosystems —> landscapes —> Biosphere
(B) Species —> Population —> Communities —> Ecosystems —> landscapes
(C) Species —> Populations —> Ecosystems —> Landscapes —> Communites —> Biosphere
(D) Species —> Population —> Communites —> Landscape —> Biosphere —> Ecosystems
Question No:7
Metabolism comprises
(A) digestion of food
(B) exchange of gases
(C) elimination of wastes
(D) various energy exchanges in cell
Question No:8
Synthesis reactions in the body form a division of metabolism called
(A) anabolism
(B) catabolism
(C) chemical reaction
(D) none of these
Question No:9
Cellular respiration
(A) occurs in heterotrophs only
(B) occurs in response to environmental changes
(C) occurs in both autotrophs and heterotrophs
(D) is a process whereby sunlight is used to synthesize cellular components with release of energy
Question No:10
In a redox reaction
(A) an oxidising agent accepts a proton
(B) a reducing agent donates a proton
(C) a reducing agent become oxidised as it accepts an electron
(D) energy is transferred from a reducing agent to an oxidising agent
Question No:11
Homeostasis is
(A) generally depends on the action of cilia
(B) occurs at population level not in organisms or cells
(C) is the long term response of organisms to change in their environment
(D) is the tendency of organisms to maintain a constant internal environment
Question No:12
Growth in living being is by
(A) Cell division
(B) Cell elongation
(C) Cell differentiation
(D) All the above
Question No:13
Plants differ from animals in having
(A) definite lifespan
(B) localized growth
(C) indefinite growth
(D) localized growth and indefinite lifespan
Question No:14
The splitting of an Amoeba into two is best described as an example of
(A) paedogenesis
(B) Parthenogenesis
(C) sexual reproduction
(D) asexual reproduction
Question No:15
An increase in the size or number of cells best describes.
(A) homeostasis
(B) biological growth
(C) asexual reproduction
(D) chemical level of organization
Question No:16
Cause of mimicry is
(A) attack
(B) isolation
(C) protection
(D) both (b) and (c)
Question No:17
Which of the following is main adaptation for plant to survive in xerophytic condition?
(A) Spines
(B) no stomata
(C) Stipular leaves
(D) Long tap root system
Question No:18
Which of the following adaptations help in evolution?
(A) Short term and heritable
(B) Long term and heritable
(C) Long term and nonheritable
(D) Short term and nonheritable
Question No:19
An orchid flower resembling the shape of a female fly so as to be able to get pollinated. This is an example of
(A) adaptation
(B) homeostasis
(C) mimicry
(D) pseudopollination
Question No:20
About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydorgen, nitrogen, oxygen and:
(A) magnesium and sodium
(B) sulphur and magnesium
(C) phosphorus and sulphur
(D) calcium and phosphorus