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Bio 111 > Unit 1 Plant Classification > Flashcards

Unit 1 Plant Classification Flashcards

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Biology 101 flashcards
1
Q

Plants are classified based on

A

Morphology
Cytology
Biochemistry
Anatomy
Physiology
Geographical distribution

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2
Q

What is ICBN

A

International code of biological nomenclature

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3
Q

Nomenclature is

A

Naming of organisms

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4
Q

Systematics is

A

Placing organisms into groups based on their similarities and differences

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5
Q

Phylogenetic classification is based on

A

Evolutionary relationships

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6
Q

Phenetic classification is based on

A

Observable characters I.e phenotype

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7
Q

Keys used for specimen identification include

A

Dichotomous
Computerised
Numerical
Indented
Flow chart
Multi access
Bracketed keys

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8
Q

Kingdom Monera is divided into

A

Archaebacteria and eubacteria

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9
Q

The chromosomes of monerans is

A

Single and circular

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10
Q

Monerans include

A

Bacteria, cyanobacteria and mycoplasma

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11
Q

The cell wall of monerans is made up of

A

Peptidoglycans

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12
Q

Membrane bound organelles are present in prokaryotes

A

False

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13
Q

DNA of monerans is

A

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

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14
Q

Asexual reproduction in monerans is by

A

Binary fission

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15
Q

Sexual reproduction in monerans is by

A

Conjugation
Transformation
Transduction

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16
Q

Characteristic features of eubacteria are

A

Presence of rigid cell wall and mobile flagellum for locomotion

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17
Q

Cyanobacteria are

A

Marine and terrestrial
Maybe unicellular, colonial or filamentous

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18
Q

The colonies of cyanobacteria are surrounded by

A

Gelatinous sheath

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19
Q

In addition to chlorophyll, cyanobacteria possess

A

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

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20
Q

All single celled organisms are placed under

A

Kingdom protozoa

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21
Q

The term protista was first used by

A

Ernst Haeckel in 1886

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22
Q

Protists are

A

Simple eukaryotic organisms
May be unicellular, colonial or filamentous

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23
Q

Nuclei of protists contains

A

Multiple DNA strands

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24
Q

What is endocytosis

A

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

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25
Q

Protists reproduce by

A

Mitosis or meiosis in some
They produce cysts in adverse condition

26
Q

Plasmodium falciparum causes

A

Malaria in humans

27
Q

Plant like protists, algae are grouped based on

A

Kind of pigments
Nature of their food reserves

28
Q

Xtics of chlorophyta include

A

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

29
Q

Xtics of rhodophyta

A

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

30
Q

Agar is used as

A

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

31
Q

Carragean is used as

A

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

32
Q

Xtics of phaeophyta

A

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

33
Q

Algin is used in making

A

Ice cream
Lotions
Plastics

34
Q

Types of chrysophyta (golden algae) are

A

Yellow-green
Golden brown and
Diatoms

35
Q

Xtics of diatoms

A

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

36
Q

Uses of diatomaceous earth include

A

Water filters
Abrasives
Add sparkling to paints and fingernail polish

37
Q

Dinoflagellate means

A

Spinning swimmers

38
Q

Red colour of pyrrophyta is due to

A

Chlorophyll a and c and xanthophylls

39
Q

Dinoflagellates causing red tide phenomenon are known as

A

Gonyaulux which contain neurotoxin and a poisonous to marine fauna

40
Q

Xtics of fungus like protists ie slime molds

A

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

41
Q

During unfavourable conditions, plasmodia of slime molds ___

A

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

42
Q

Algal products used as blood coagulants include

A

Sodium laminaria sulphate
Fucoidin and heparin

43
Q

Which algae produces an anti-cancer compound

A

Lyngbya

44
Q

What is mycology

A

Study of fungi

45
Q

Vegetative body of fungi may be unicellular or

A

Composed of microscopic threads called hypae

46
Q

Fungi store their food as

A

Glycogen

47
Q

What are teleomorph and anamorph

A

Sexual and asexual state of fungi

48
Q

Aspergillus, claviceps and nuerospora are examples of

A

Sac fungi ascomycota

49
Q

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

A

Basidiomycota club fungi

50
Q

Zygomycota are

A

Zygote forming fungi

51
Q

Spores of zygomycota are produced in a round shaped case called

A

Sporangium

52
Q

Mucor, rhizopus and albugo are examples of

A

Zygomycota

53
Q

Fungi that lack sexual reproduction are called

A

Imperfect fungi and they reproduce by asexual spores called conidia

54
Q

Kingdom plantae are defined as

A

Multicellular autotrophic eukaryotic which conduct photosynthesis

55
Q

Cell wall of plant cells are made up of

A

Cellulose

56
Q

Classification of plants is based on

A

Presence or absence of vascular tissues and seeds

57
Q

What are seeds

A

Structures which contain embryo that helps in storing food

58
Q

What are functions of vascular tissues

A

Transporting substances

59
Q

How many divisions are there in kingdom plantae

A

Bryophyta
Pteridophyta
Spermatophyta

60
Q

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

A

Bryophyta and pteridophyta respectively

Bio 111 (8 decks)

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