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Botany > Biological Classification > Flashcards

Biological Classification Flashcards

1
Q

All ___________ eukaryotes, irrespective of their mode of nutrition are included in the kingdom prostista in Whittaker’s system.

  1. Unicellular
  2. Multicellular
A

Unicellular

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2
Q

The term protista was coined by

  1. Haeckel
  2. Linnaeus
  3. Copeland
  4. Whittaker
A
  1. Haeckel
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3
Q

Protistians are ancestors of all ___________ organisms (plants, fungi, animals.

  1. Unicellular
  2. Multicellular
A
  1. Multicellular
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4
Q

Which of the following are the characteristics of kingdom Protista?

  1. Multicellular organisms whose chromosomes are not enclosed in a nuclear membrane.
  2. Unicellular organisms whose chromosomes are not enclosed in a nuclear membrane.
  3. Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.
  4. Multicellular organisms whose chromosomes are enclosed in a nuclear membrane.
A
  1. Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.
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5
Q

Protista is a ___________, __________ organism.

  1. Multicellular, eukaryotic
  2. Unicellular, prokaryotic
  3. Unicellular, eukaryotic
  4. Multicellular, prokaryotic
A
  1. Unicellular, eukaryotic
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6
Q

Cell structure is eukaryotic type having all kinds of membrane bound organelles and __ S cytoplasmic ribosomes.

  1. 20
  2. 40
  3. 60
  4. 80
A
  1. 80
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7
Q

Flagella and cilia have (9+2) pattern of microtubule organization consisting of _______ protein.

A

Tubulin

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8
Q

In protista, in the movement by pseudopodia, flagella or cilia, whose mode is the fastest?

A

Cilia

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9
Q

Euglena ( a protist ) has ____________ type of nutrition.

  1. Photosynthetic
  2. Holozoic
  3. Saprobic
  4. Mixotrophic ( photosynthetic and saprobic)
A
  1. Mixotrophic ( photosynthetic and saprobic)
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10
Q

Lifecycle in protista is of two types :-

A
  1. Zygotic meiosis
  2. Gametic meiosis
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11
Q

In protista, ________ protists may cause diseases like dysentery, malaria, sleeping sickness, etc.

A

Parasitic

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12
Q

Photosynthetic protists are popularly called ________ ________. It constitutes the major portion of the _______________.

A

Protistan algae
Phytoplanktons

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13
Q

Diatoms are ________ _______ photosynthetic protists and are called _____________ ( including both diatoms and desmids)

A

Golden brown
Chrysophytes

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14
Q

Diatoms are basically unicellular but may form pseudofilament and colonies, lacking flagella expect in the _____________ stage.

A

Reproductive

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15
Q

Diatoms may remain floating on the surface due to presence of light wieght ________.

A

Lipids

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16
Q

In diatoms, the cell wall is impregnated with _________ to form siliceous shell, known as _________.

A

Silica
Frustule

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17
Q

Silica shells of dead diatoms are nearly indestructible and get accumulated at the sea bed. These are mined to obtain whitish powder called ________ or _________ or _______________ _________.

A

Diatomite
Kieselguhr
Diatomaceous earth

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18
Q

Diatoms mode of nutrition is __________, photosynthetic pigments are ___________, _____________, ___________ and special carotenoids containing fucoxanthin, xanthophylls like _____________, ________________.

A

Holophytic
Chlorophyll a
Chlorophyll c
Ɓ-carotene
Diaxanthin
Diadinoxanthin

19
Q

In diatoms, reserve food is ____ and a polysaccharide called _________, volutin granules are also present.

A

Oil
Leucosin

20
Q

Diatoms are responsible for almost __ % of the total organic matter synthesized in the biosphere.

A

50%

21
Q

In diatoms, sexual reproduction varies from _______ to _________.

A

Isogamy
Oogamy

22
Q

Diatoms are very good indicators of ______ _________.

A

Water pollution

23
Q

__________ are the chief producer of ocean.

A

Diatoms

24
Q

Triceratium, Melosira, Navicula, Cymbella are examples of __________.

A

Diatoms

25
Q

The body of dinoflagellates is enclosed by a rigid coat called theca or lorica consisting of 2 to many articulated or sculptured plates of _________ and _______, hence are called armoured dinoflagellates.

A

Cellulose
Pectin

26
Q

In dinoflagellates, photosynthetic pigments are ______________, _, ____________, ___________, __________. (e.g, Peridinin)

A

Chlorophyll a, c
Ɓ carotene
a- carotene
Xanthophyll

27
Q

__________ and _________ sexual reproduction is reported from some dinoflagellates e.g., Ceratium

A

Isogamous
Anisogamous

28
Q

Some marine dinoglagellates show bioluminescence i.e emit light e.g, _________, ___________, ___________.

A

Noctiluca
Pyrodinium
Pyrocystis

29
Q

Some dinoflagellates like Gonyaulax catenella produce a toxin called _________ which is highly poisonous to vertebrates e.g fishes and other aquatic animals. If consumed by man causes severe illness called _________ _______ _____ ____________.

A

Paralytic shell fish poisoning

30
Q

Some dinoflagellates proliferate in large number and cause red tide of the sea, e.g., __________. ___________.

A

Gonyaulax
Gymnodinium

31
Q

The fungi which grow on dung is called as

A Epixylic

B Coprophilous

C Keratinophillic

D Xylophillous

A

B Coprophilous

32
Q

Fungi prefer to grow in

A Warm and swampy places

B Warm and salty places

C Warm and humid places

D Cold and moist places

A

C warm and humid places

33
Q

The fungal body which is haploid and thalloid is not differenciated into _____, ______ and ________.

A

Root
Stem
Leaves

34
Q

Fungi are multicellular expect _____ and _________.

A

Yeast
Synchytrium

35
Q

Mycelium is made up of criss-crossed network of _______.

A

Hyphae

36
Q

In most of the fungi the mycelium is ________.

A

Septate

37
Q

Hyphae with continous tubes filled with multinucleated cytoplasm are called

A coenocytic

B septate

C haustoria

A

A coenocytic

38
Q

Which of the following are characterisitcs of a coenocytic hyphae?

A aseptate

B multinucleate

C uninucleate

D septate

A

B multinucleate

39
Q

The fungal cell wall is made up of

A Chitin

B Cellulose

C Pectin

D Peptidoglycan

A

A Chitin

40
Q

What are the two morpholigical phases of fungi?

A

Vegetative and reproductive

41
Q

Vegetative reproduction in fungi occurs by which methods?

A

Fragmentation
Budding
Fission

42
Q

The spores produced during asexual reproduction in fungi are formed by mitotic division and a thus termed-

A

Mitospores

43
Q

Rhizopus and Mucor are examples of which type of asexual reproduction in fungi?

A

Sporangiospore

Botany (5 decks)

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