Biological Classification

Question 1

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

1. Unicellular
2. Multicellular

Answer 1

Unicellular

Question 2

The term protista was coined by

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

Answer 2

1. Haeckel

Question 3

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

1. Unicellular
2. Multicellular

Answer 3

2. Multicellular

Question 4

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.

Answer 4

3. Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.

Question 5

Protista is a ___________, __________ organism.

1. Multicellular, eukaryotic
2. Unicellular, prokaryotic
3. Unicellular, eukaryotic
4. Multicellular, prokaryotic

Answer 5

3. Unicellular, eukaryotic

Question 6

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

1. 20
2. 40
3. 60
4. 80

Answer 6

4. 80

Question 7

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

Answer 7

Tubulin

Question 8

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

Answer 8

Cilia

Question 9

Euglena ( a protist ) has ____________ type of nutrition.

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

Answer 9

4. Mixotrophic ( photosynthetic and saprobic)

Question 10

Lifecycle in protista is of two types :-

Answer 10

1. Zygotic meiosis
2. Gametic meiosis

Question 11

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

Answer 11

Parasitic

Question 12

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

Answer 12

Protistan algae
Phytoplanktons

Question 13

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

Answer 13

Golden brown
Chrysophytes

Question 14

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

Answer 14

Reproductive

Question 15

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

Answer 15

Lipids

Question 16

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

Answer 16

Silica
Frustule

Question 17

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 _______________ _________.

Answer 17

Diatomite
Kieselguhr
Diatomaceous earth

Question 18

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

Answer 18

Holophytic
Chlorophyll a
Chlorophyll c
Ɓ-carotene
Diaxanthin
Diadinoxanthin

Question 19

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

Answer 19

Oil
Leucosin

Question 20

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

Answer 20

50%

Question 21

In diatoms, sexual reproduction varies from _______ to _________.

Answer 21

Isogamy
Oogamy

Question 22

Diatoms are very good indicators of ______ _________.

Answer 22

Water pollution

Question 23

__________ are the chief producer of ocean.

Answer 23

Diatoms

Question 24

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

Answer 24

Diatoms

Question 25

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.

Answer 25

Cellulose Pectin

Question 26

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

Answer 26

Chlorophyll a, c Ɓ carotene a- carotene Xanthophyll

Question 27

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

Answer 27

Isogamous Anisogamous

Question 28

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

Answer 28

Noctiluca Pyrodinium Pyrocystis

Question 29

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 _________ _______ _____ ____________.

Answer 29

Paralytic shell fish poisoning

Question 30

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

Answer 30

Gonyaulax Gymnodinium

Question 31

The fungi which grow on dung is called as A Epixylic B Coprophilous C Keratinophillic D Xylophillous

Answer 31

B Coprophilous

Question 32

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

Answer 32

C warm and humid places

Question 33

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

Answer 33

Root Stem Leaves

Question 34

Fungi are multicellular expect _____ and _________.

Answer 34

Yeast Synchytrium

Question 35

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

Answer 35

Hyphae

Question 36

In most of the fungi the mycelium is ________.

Answer 36

Septate

Question 37

Hyphae with continous tubes filled with multinucleated cytoplasm are called A coenocytic B septate C haustoria

Answer 37

A coenocytic

Question 38

Which of the following are characterisitcs of a coenocytic hyphae? A aseptate B multinucleate C uninucleate D septate

Answer 38

B multinucleate

Question 39

The fungal cell wall is made up of A Chitin B Cellulose C Pectin D Peptidoglycan

Answer 39

A Chitin

Question 40

What are the two morpholigical phases of fungi?

Answer 40

Vegetative and reproductive

Question 41

Vegetative reproduction in fungi occurs by which methods?

Answer 41

Fragmentation Budding Fission

Question 42

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

Answer 42

Mitospores

Question 43

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

Answer 43

Sporangiospore