Unit 1 Plant Classification

Question 1

Plants are classified based on

Answer 1

Morphology
Cytology
Biochemistry
Anatomy
Physiology
Geographical distribution

Question 2

What is ICBN

Answer 2

International code of biological nomenclature

Question 3

Nomenclature is

Answer 3

Naming of organisms

Question 4

Systematics is

Answer 4

Placing organisms into groups based on their similarities and differences

Question 5

Phylogenetic classification is based on

Answer 5

Evolutionary relationships

Question 6

Phenetic classification is based on

Answer 6

Observable characters I.e phenotype

Question 7

Keys used for specimen identification include

Answer 7

Dichotomous
Computerised
Numerical
Indented
Flow chart
Multi access
Bracketed keys

Question 8

Kingdom Monera is divided into

Answer 8

Archaebacteria and eubacteria

Question 9

The chromosomes of monerans is

Answer 9

Single and circular

Question 10

Monerans include

Answer 10

Bacteria, cyanobacteria and mycoplasma

Question 11

The cell wall of monerans is made up of

Answer 11

Peptidoglycans

Question 12

Membrane bound organelles are present in prokaryotes

Answer 12

False

Question 13

DNA of monerans is

Answer 13

Double stranded and suspended in the cytoplasm of the organism known as nucleoid

Question 14

Asexual reproduction in monerans is by

Answer 14

Binary fission

Question 15

Sexual reproduction in monerans is by

Answer 15

Conjugation
Transformation
Transduction

Question 16

Characteristic features of eubacteria are

Answer 16

Presence of rigid cell wall and mobile flagellum for locomotion

Question 17

Cyanobacteria are

Answer 17

Marine and terrestrial
Maybe unicellular, colonial or filamentous

Question 18

The colonies of cyanobacteria are surrounded by

Answer 18

Gelatinous sheath

Question 19

In addition to chlorophyll, cyanobacteria possess

Answer 19

Blue (phycocyanin) and red (phycoerythrin) pigments known as phycobilins

Question 20

All single celled organisms are placed under

Answer 20

Kingdom protozoa

Question 21

The term protista was first used by

Answer 21

Ernst Haeckel in 1886

Question 22

Protists are

Answer 22

Simple eukaryotic organisms
May be unicellular, colonial or filamentous

Question 23

Nuclei of protists contains

Answer 23

Multiple DNA strands

Question 24

What is endocytosis

Answer 24

Formation of food vacuole by engulfing a bacteria and extending their cell membrane

Question 25

Protists reproduce by

Answer 25

Mitosis or meiosis in some They produce cysts in adverse condition

Question 26

Plasmodium falciparum causes

Answer 26

Malaria in humans

Question 27

Plant like protists, algae are grouped based on

Answer 27

Kind of pigments Nature of their food reserves

Question 28

Xtics of chlorophyta include

Answer 28

Green Unicellular or multicellular Body is a sheet like thallus Cell walls made up of cellulose and pectin. Food reserve is starch stored in pyrenoids. Eg spirogyra

Question 29

Xtics of rhodophyta

Answer 29

Red algae Large and multicellular Grow in oceans Used as food eg nori and gelidium Glue like substances carragean and agar.

Question 30

Agar is used as

Answer 30

Medium for growing organisms under lab conditions. Making gelatin capsules Base for cosmetics

Question 31

Carragean is used as

Answer 31

Stabiliser and thickener in dairy products To give toothpaste its creamy texture

Question 32

Xtics of phaeophyta

Answer 32

Brown algae Multicellular Grow on rocks and shallow water of seas. Kelps form kelp forests Important food source for aquatic organisms. Rockweed grow on rocks eg sargassum. Derivation of algin

Question 33

Algin is used in making

Answer 33

Ice cream Lotions Plastics

Question 34

Types of chrysophyta (golden algae) are

Answer 34

Yellow-green Golden brown and Diatoms

Question 35

Xtics of diatoms

Answer 35

Shells are made of silica Most abundant Found in sea and freshwater Deposits on sea floor are known as diatomaceous earth

Question 36

Uses of diatomaceous earth include

Answer 36

Water filters Abrasives Add sparkling to paints and fingernail polish

Question 37

Dinoflagellate means

Answer 37

Spinning swimmers

Question 38

Red colour of pyrrophyta is due to

Answer 38

Chlorophyll a and c and xanthophylls

Question 39

Dinoflagellates causing red tide phenomenon are known as

Answer 39

Gonyaulux which contain neurotoxin and a poisonous to marine fauna

Question 40

Xtics of fungus like protists ie slime molds

Answer 40

Saprophytic Very bright Single celled Form multicellular aggregations called plasmodium during favourable conditions

Question 41

During unfavourable conditions, plasmodia of slime molds ___

Answer 41

Differentiate to form fruiting bodies bearing spores at the tip These spores possess resistant true walls which help survival. Spores disperse by air currents.

Question 42

Algal products used as blood coagulants include

Answer 42

Sodium laminaria sulphate Fucoidin and heparin

Question 43

Which algae produces an anti-cancer compound

Answer 43

Lyngbya

Question 44

What is mycology

Answer 44

Study of fungi

Question 45

Vegetative body of fungi may be unicellular or

Answer 45

Composed of microscopic threads called hypae

Question 46

Fungi store their food as

Answer 46

Glycogen

Question 47

What are teleomorph and anamorph

Answer 47

Sexual and asexual state of fungi

Question 48

Aspergillus, claviceps and nuerospora are examples of

Answer 48

Sac fungi ascomycota

Question 49

Mushrooms, puff balls, smuts, rusts and toadstools are examples of

Answer 49

Basidiomycota club fungi

Question 50

Zygomycota are

Answer 50

Zygote forming fungi

Question 51

Spores of zygomycota are produced in a round shaped case called

Answer 51

Sporangium

Question 52

Mucor, rhizopus and albugo are examples of

Answer 52

Zygomycota

Question 53

Fungi that lack sexual reproduction are called

Answer 53

Imperfect fungi and they reproduce by asexual spores called conidia

Question 54

Kingdom plantae are defined as

Answer 54

Multicellular autotrophic eukaryotic which conduct photosynthesis

Question 55

Cell wall of plant cells are made up of

Answer 55

Cellulose

Question 56

Classification of plants is based on

Answer 56

Presence or absence of vascular tissues and seeds

Question 57

What are seeds

Answer 57

Structures which contain embryo that helps in storing food

Question 58

What are functions of vascular tissues

Answer 58

Transporting substances

Question 59

How many divisions are there in kingdom plantae

Answer 59

Bryophyta Pteridophyta Spermatophyta

Question 60

The first land plants and the first vascular tissue bearing plants are

Answer 60

Bryophyta and pteridophyta respectively