Living World

Question 1

Study of living organisms

Answer 1

Biology

Question 2

Story of life on earth

Answer 2

Biology

Question 3

Story of evolution of living organisms on earth

Answer 3

Biology

Question 4

Living organisms differ from non-living things by

Answer 4

Living organisms have certain unique characters like metabolism , consciousness , etc.

Question 5

All living organisms are made of

Answer 5

Cells

Question 6

Living organisms are

Answer 6

Self-replicating , evolving , self-regulating and interactive systems capable of responding to external stimuli.

Question 7

Twin characteristics of growth

Answer 7

Increase in mass , increase in number of individual.

Question 8

in plants , growth is seen

Answer 8

throughout there life-span

Question 9

in animals , growth is seen

Answer 9

only up to certain age.

however , cell division occurs in certain tissue to replace the lost cells.

Question 10

growth in non-living things is

Answer 10

external , by accumulation of material on surface

Question 11

growth in living beings is

Answer 11

internal

Question 12

is growth defining feature of living organisms

Answer 12

no

Question 13

Reproduction refers to

Answer 13

Production of progeny possessing features more or less similar to those of parents.

Question 14

in sexual reproduction

Answer 14

2 parent are there , who produce sperm and egg cells containing half of their genetic material , there cells fuse to forma new individual with a full genetic set. this process is called fertilization.

Question 15

fungi multiply and spread easily due to

Answer 15

millions of asexual spores they produce

Question 16

asexual reproduction in yeast and hydra

Answer 16

budding

Question 17

in Planaria ( flat worms )

Answer 17

we observe true regeneration, i.e., a fragmented organism regenerates the lost part of its body and becomes, a new organism.

Question 18

fungi, the filamentous algae, the protonema of mosses,

Answer 18

all easily multiply by fragmentation

Question 19

In unicellular organisms like bacteria, unicellular algae or Amoeba

Answer 19

reproduction is synonymous with growth, i.e., increase in number of cells.
We have already defined growth as equivalent to increase in cell number or mass.

Question 20

organisms which do not reproduce

Answer 20

mules , sterile worker bees , infertile human couple.

Question 21

is reproduction defining feature of living organisms

Answer 21

no

Question 22

Conversions of biomolecules in our body is called

Answer 22

Metabolic reactions or Chemical reaction

Question 23

all living organisms are Made of

Answer 23

Chemicals

Question 24

Define Metabolism

Answer 24

sum total of all chemical reactions occurring in our body.

Question 25

Isolated metabolic reactions in vitro are

Answer 25

Not living things but surly living reactions.

Question 26

Is metabolism defining feature of all living organisms

Answer 26

Yes without exception

Question 27

Metabolism can be subdivided into

Answer 27

Anabolism and catabolism

Question 28

Anabolism means

Answer 28

Reaction where complex molecules breakdown and form simple once.

Question 29

Catabolism means

Answer 29

Conversion of complex molecules into simple once

Question 30

Energy is consumed in

Answer 30

Anabolic reactions

Question 31

Energy producing reactions are

Answer 31

catabolic reactions

Question 32

Consciousness

Answer 32

Ability to sense their surrounding environment

Question 33

animals sense their environment by

Answer 33

Sense organs

Question 34

Sense organs are

Answer 34

the specialized organs composed of sensory neurons, which help us to perceive and respond to our surroundings.

Question 35

sense organs in humans

Answer 35

There are five sense organs in humans – eyes, ears, nose, tongue, and skin.

Question 36

Plants respond to external factors like

Answer 36

light, water , temperature , other organisms and pollutants.

Question 37

Photoperiod affects reproduction in

Answer 37

seasonal breeders , both plants and animals

Question 38

All organisms handle chemical entering their body , therefore are

Answer 38

Aware of their surroundings , has consciousness

Question 39

Humans are only organisms , aware of himself

Answer 39

Has self-consciousness

Question 40

Consciousness therefore , becomes the

Answer 40

Defining property of living organisms

Question 41

Levels of organization in living organisms

Answer 41

- Sub-atomic particles - Atoms - Molecules - Cellular organelles - Cells - Tissue - Organs - Organ system - Organism - Genus - Population - Community - Ecosystem - Biomes - Biosphere

Question 42

Types of tissue in animals

Answer 42

Connective tissue , epithelial tissue , muscle and nervous tissue

Question 43

Cellular organization of body is

Answer 43

Defining feature of life forms

Question 44

Normal body temp in humans

Answer 44

37 degree Celsius , or 98.6 Fahrenheit

Question 45

Living organisms regulate their internal environment to

Answer 45

maintain the relatively narrow range of conditions needed for cells to function

Question 46

Homeostasis definition

Answer 46

The maintenance of stable internal environment , even in the face of changing external environment , is known as homeostasis

Question 47

All basic features of living organisms are

Answer 47

- Growth - reproduction - metabolism - Consciousness - Cellular Organization - Homeostasis - Evolution - Interaction In living organisms

Question 48

Define Biodiversity

Answer 48

It is the term used to describe enormous Varity of life on earth.

Question 49

Number of known species

Answer 49

1.7 - 1.8 million

Question 50

Nomenclature

Answer 50

Naming of living organisms , so that they are known by same name all over the world

Question 51

Identification is process of

Answer 51

describing organism correct , so that it can be named.

Question 52

ICBN full form

Answer 52

International code for botanical Nomenclature

Question 53

ICZN

Answer 53

International code for zoological nomenclature

Question 54

2 components of scientific name

Answer 54

Generic name ( genus ) and specific epithet .

Question 55

system of providing name with 2 components is called

Answer 55

Binomial nomenclature

Question 56

Binomial nomenclature system was given by

Answer 56

Carolus Linnaeus

Question 57

Biological names are generally in

Answer 57

Latin and written in Italics.

Question 58

First word in biological name

Answer 58

genus

Question 59

Second word in it

Answer 59

Species

Question 60

Both words in biological name when hand written are

Answer 60

separately underlined

Question 61

Both words in biological name when printed

Answer 61

in italics to indicate their Latin origin

Question 62

The first word denoting the genus starts with

Answer 62

a capital letter

Question 63

the specific epithet starts with

Answer 63

small letter

Question 64

scientific name of mango

Answer 64

Mangifera indica

Question 65

Define classification

Answer 65

the process by which anything is grouped into convenient categories based on some easily observable characters.

Question 66

scientific term for these categories is

Answer 66

Taxa

Question 67

all living organisms can be classified into different taxa

Answer 67

This process of classification is taxonomy.

Question 68

Basis of taxonomy

Answer 68

characterization, identification, classification and nomenclature

Question 69

word systematics is derived from

Answer 69

the Latin word ‘ systema ’ which means systematic arrangement of organisms

Question 70

Linnaeus used ___ as a title of his publication

Answer 70

Systema Naturae

Question 71

Father of Taxonomy

Answer 71

Carolus Linnaeus