Biological Classification Flashcards
All ___________ eukaryotes, irrespective of their mode of nutrition are included in the kingdom prostista in Whittaker’s system.
- Unicellular
- Multicellular
Unicellular
The term protista was coined by
- Haeckel
- Linnaeus
- Copeland
- Whittaker
- Haeckel
Protistians are ancestors of all ___________ organisms (plants, fungi, animals.
- Unicellular
- Multicellular
- Multicellular
Which of the following are the characteristics of kingdom Protista?
- Multicellular organisms whose chromosomes are not enclosed in a nuclear membrane.
- Unicellular organisms whose chromosomes are not enclosed in a nuclear membrane.
- Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.
- Multicellular organisms whose chromosomes are enclosed in a nuclear membrane.
- Unicellular organisms whose chromosomes are enclosed in a nuclear membrane.
Protista is a ___________, __________ organism.
- Multicellular, eukaryotic
- Unicellular, prokaryotic
- Unicellular, eukaryotic
- Multicellular, prokaryotic
- Unicellular, eukaryotic
Cell structure is eukaryotic type having all kinds of membrane bound organelles and __ S cytoplasmic ribosomes.
- 20
- 40
- 60
- 80
- 80
Flagella and cilia have (9+2) pattern of microtubule organization consisting of _______ protein.
Tubulin
In protista, in the movement by pseudopodia, flagella or cilia, whose mode is the fastest?
Cilia
Euglena ( a protist ) has ____________ type of nutrition.
- Photosynthetic
- Holozoic
- Saprobic
- Mixotrophic ( photosynthetic and saprobic)
- Mixotrophic ( photosynthetic and saprobic)
Lifecycle in protista is of two types :-
- Zygotic meiosis
- Gametic meiosis
In protista, ________ protists may cause diseases like dysentery, malaria, sleeping sickness, etc.
Parasitic
Photosynthetic protists are popularly called ________ ________. It constitutes the major portion of the _______________.
Protistan algae
Phytoplanktons
Diatoms are ________ _______ photosynthetic protists and are called _____________ ( including both diatoms and desmids)
Golden brown
Chrysophytes
Diatoms are basically unicellular but may form pseudofilament and colonies, lacking flagella expect in the _____________ stage.
Reproductive
Diatoms may remain floating on the surface due to presence of light wieght ________.
Lipids
In diatoms, the cell wall is impregnated with _________ to form siliceous shell, known as _________.
Silica
Frustule
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 _______________ _________.
Diatomite
Kieselguhr
Diatomaceous earth
Diatoms mode of nutrition is __________, photosynthetic pigments are ___________, _____________, ___________ and special carotenoids containing fucoxanthin, xanthophylls like _____________, ________________.
Holophytic
Chlorophyll a
Chlorophyll c
Ɓ-carotene
Diaxanthin
Diadinoxanthin
In diatoms, reserve food is ____ and a polysaccharide called _________, volutin granules are also present.
Oil
Leucosin
Diatoms are responsible for almost __ % of the total organic matter synthesized in the biosphere.
50%
In diatoms, sexual reproduction varies from _______ to _________.
Isogamy
Oogamy
Diatoms are very good indicators of ______ _________.
Water pollution
__________ are the chief producer of ocean.
Diatoms
Triceratium, Melosira, Navicula, Cymbella are examples of __________.
Diatoms
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.
Cellulose
Pectin
In dinoflagellates, photosynthetic pigments are ______________, _, ____________, ___________, __________. (e.g, Peridinin)
Chlorophyll a, c
Ɓ carotene
a- carotene
Xanthophyll
__________ and _________ sexual reproduction is reported from some dinoflagellates e.g., Ceratium
Isogamous
Anisogamous
Some marine dinoglagellates show bioluminescence i.e emit light e.g, _________, ___________, ___________.
Noctiluca
Pyrodinium
Pyrocystis
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 _________ _______ _____ ____________.
Paralytic shell fish poisoning
Some dinoflagellates proliferate in large number and cause red tide of the sea, e.g., __________. ___________.
Gonyaulax
Gymnodinium
The fungi which grow on dung is called as
A Epixylic
B Coprophilous
C Keratinophillic
D Xylophillous
B Coprophilous
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
C warm and humid places
The fungal body which is haploid and thalloid is not differenciated into _____, ______ and ________.
Root
Stem
Leaves
Fungi are multicellular expect _____ and _________.
Yeast
Synchytrium
Mycelium is made up of criss-crossed network of _______.
Hyphae
In most of the fungi the mycelium is ________.
Septate
Hyphae with continous tubes filled with multinucleated cytoplasm are called
A coenocytic
B septate
C haustoria
A coenocytic
Which of the following are characterisitcs of a coenocytic hyphae?
A aseptate
B multinucleate
C uninucleate
D septate
B multinucleate
The fungal cell wall is made up of
A Chitin
B Cellulose
C Pectin
D Peptidoglycan
A Chitin
What are the two morpholigical phases of fungi?
Vegetative and reproductive
Vegetative reproduction in fungi occurs by which methods?
Fragmentation
Budding
Fission
The spores produced during asexual reproduction in fungi are formed by mitotic division and a thus termed-
Mitospores
Rhizopus and Mucor are examples of which type of asexual reproduction in fungi?
Sporangiospore
