The sum total of all the chemical reactions occurring in our body is known as
metabolism
growth
regeneration
reproduction
Correct Answer :
A. metabolism
All living organisms are continuously making or breaking biomolecules, such conversions are due to chemical reactions, and sum total of all such chemical reactions, occurring in the body is called metabolism. Each metabolic pathway in the cell is tightly regulated by enzymes.
Related Questions
The most important feature of all living systems is to
utilize oxygen to generate energy.
replicate the genetic information.
produce gametes.
utilize solar energy for metabolic activities.
Which of the following taxonomic category of housefly is incorrectly matched?
Genus Musca
Family Muscidae
Order Primata
Class Insecta
Taxonomic hierarchy refers to
step-wise arrangement of all categories for classification of plants and animals.
a group of senior taxonomists who decide the nomenclature of plants and animals.
a list of botanists or zoologists who have worked on taxonomy of a species or group.
classification of a species based on fossil record.
Taxa differs from taxon due to being
a higher taxonomic category than taxon.
lower taxonomic category than taxon.
the plural of taxon.
the singular of taxon.
Two animals which are the members of the same order must also be the members of the same __________.
class
family
genus
species
Two plants can be conclusively said to belong to the same species if they
have same number of chromosomes.
can reproduce freely with each other and form seeds.
have more than 90 per cent similar genes.
look similar and possess identical secondary metabolites.
Which one of the following animals is correctly matched with its particular named taxonomic category ?
Tiger Tigris, the species
Cuttle fish Mollusca, a class
Humans Primata, the family
Housefly Musca, an order
Which of the following statement(s) is/are not correct ?
(i) Genus comprises a group of related species which has more characters in common in comparison to species of other genera.
(ii) Three different genera such as Solanum, Datura and Petunia are placed in the family malvaceae.
(iii) In case of plants, classes with a few similar characters are assigned to a higher category called phylum.
Both (i) and (ii)
Only (iii)
Both (ii) and (iii)
All of these
If an organism is in the same class but not in the same family then it may belong to same
genus
species
variety
order
The fungi, the filamentous algae, the protonema of mosses, all easily multiply by _____.
budding
fission
regeneration
fragmentation
Keys are generally _______ in nature.
physical
chemical
analytical
qualitative
One of the most important functions of botanical gardens is that
they provide a beautiful area for recreation.
one can observe tropical plants there.
they allow ex-situ conservation of germ plasm.
they provide the natural habitat for wildlife.
Study the following statements and select the correct description of botanical garden.
(i) Plant species are grown for identification purposes.
(ii) Labeling of each plant consists of its botanical name/ scientific name and its family.
(iii) Specimens are preserved in the jars and containers.
(iv) It is a type of store house which contains dried, pressed and preserved plant specimens on sheet.
(v) Plant specimen contains a labeling of information about date and place of collection.
(i) and (ii) only
(i), (ii) and (iii) only
(ii) and (iv) only
All the five statements.
Which of the following statements is incorrect?
The scientific name for humans is Homo sapiens.
Organisms placed in the same genus are least closely related.
Moving from species to kingdom, more different species are included in each higher category.
Species that are in the same genus share very specific characteristics.
The practical purpose of classification of living organisms is to
explain the origin of living organsims.
trace the evolution of living organsims.
name the living organisms.
facilitate identification of unknown organisms.
Herbarium is a
garden where medicinal plants are grown.
garden where herbaceous plants are grown.
dry garden.
chemical to kill plants.
Which of the following statement(s) is/are not correct ?
(i) Reproduction is the production of progeny possessing features dissimilar to their parents.
(ii) The fungi, the filamentous algae, the protonema of mosses, all multiply by budding.
(iii) Many organisms like mules, sterile worker bees do not reproduce.
(iv) Reproduction is not an all-inclusive defining characteristic of living organisms.
Only (i)
Both (i) and (ii)
Both (ii) and (iv)
All of these
Couplet represents the choice made between two opposite options which results in
rejection of both the option.
acceptance of both the option.
either acceptance or rejection of both the option.
acceptance of only one and rejection of the other.
Statement 1: Information given on the label of herbarium sheets does not include family.
Statement 2: Families are characterized on the basis of reproductive features of plant species only.
Statement 1 and 2 are true and statement 2 is the correct explanation for statement 1.
Statement 1 and 2 are true but statement 2 is not a correct explanation for statement 1.
Statement 1 is true and statement 2is false.
Both the statements are false.
Systematics refers to the
identification and classification of plants and animals.
nomenclature and identification of plants and animals.
diversity of kinds of organisms and their relationship.
different kinds of organisms and their classification.
Match column-I (Biological name) with column-II (Class) and choose the correct option.
| Column-I | Column-II |
|---|---|
| (Biological name) | (Class) |
| A. Homo sapiens | I. Dicotyledonae |
| B. Musca domestica | II. Mammalia |
| C. Mangifera indica | III. Monocotyledonae |
| D. Triticum aestivum | IV. Insects |
A IV; B II; C I; D III
A II; B IV; C III; D I
A II; B IV; C I; D III
A II; B I; C IV; D III
Which one of the following taxonomical aid is used for identification of plants and animals based on similarities and dissimilarities?
Flora
Keys
Monographs
Catalogues
Which of the following is less general in characters as compared to genus?
Species
Division
Class
Family
Genus represents
an individual plant or animal.
a collection of plants or animals.
group of closely related species of plants or animals.
none of the above.
In majority of higher animals and plants, _____ and _____ are mutually exclusive events.
growth; nutrition
nutrition; consciousness
growth; reproduction
reproduction; consciousness
Which of the following is not a characteristic of life?
Reproduction
Complex chemical organization
Adaptation to environmental changes
Differentiation from cells to tissues
Which of the following statements are not correct ?
(i) Lower the taxon, more are the characteristics that the members within the taxon share.
(ii) Order is the assemblage of genera which exhibit a few similar characters.
(iii) Cat and dog are included in the same family Felidae.
(iv) Binomial nomenclature was introduced by Carolus Linnaeus.
(i), (ii) and (iii)
(ii), (iii) and (iv)
(i) and (iv)
(ii) and (iii)
In angiosperm, characters of flowers are used in classification because
flowers are attractive.
flowers are large.
character of flowers are conserved.
none of the above.
The disadvantage of using common names for species is that
the names may change.
one name does not apply universally.
one species may have several common names and one common name may be applied to two species.
all of the above
Which of the following taxonomic categories is being described by the given statements (i-iii) ?
(i) It is the basic unit of classification.
(ii) It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offsprings.
(iii) Human beings belong to the species sapiens which is grouped in the genus Homo.
Species
Genus
Order
Family