Earlier classification (Before Whittaker) has placed which of the following in the same kingdom Plantae and now they are no more considered under plants?

  • Monera, Protista and Fungi

  • Monera and Protista

  • Animals, Protista, Fungi

  • Fungi and Monera, Animalia

Blue Green algae comes under

  • Monera

  • Brown Algae

  • Eukaryotes

  • Plantae

The earliest system of classification does not include which of the following features?

  • Habit, color, number and shape of leaves

  • Gross morphology, androecium structure

  • Vegetative structure

  • Phytochemistry

The classification given by Linnaeus was depending on

  • Phytochemistry

  • Embryology

  • Structure of androecium

  • Anatomy

The main reason of failure of artificial classification was

  • It considered only vegetative characters

  • It gave more weightage to vegetative characters

  • It gave more weightage to reproductive characters

  • It gave equal weightage to both vegetative and reproductive characters

Why are reproductive characters given more weightage during advanced classification?

  • Vegetative characters are more or less constant over the generation

  • Reproductive characters are less constant over the generation

  • Vegetative characters are easy to get affected by environment

  • Reproductive characters are more or less constant over the generation

George Bentham and Joseph Hooker gave the classification based on

  • Artificial system

  • Natural system

  • Phlogenetics

  • Numerical system

Under natural system of classification which of the following cahracter is not considered?

  • External features

  • Phylogeny

  • Anatomy, Embryology

  • Phytochemistry

Phylogenetic classification systems based on

  • Evolutionary relationships between the various organism

  • Organisms belonging to the same taxa may have a different ancestor

  • Both A and B

  • Based on cytological information like chromosome number, structure, behavior.

If we want to know evolutionary relationships between organisms then which classification will resolve it :

  • Artificial classification

  • Natural classification

  • Cytotaxonomy

  • Phylogenetic classification

Numerical Taxonomy

  • Carried out using computers

  • Based on all observable characteristics

  • Number and codes are assigned to all the characters

  • All of these

Cytotaxonomy

  • Based on cytological information like chromosome number

  • Based on cytological information like chromosome structure

  • Based on cytological information like chromosome behavior

  • All of these

Chemotaxonomy

  • Chemical constituents of the plant

  • Cell structure

  • Phylogeny

  • Embryology

Algae is not

  • Chlorophyll-bearing

  • Simple Thalloid

  • Mainly Fresh water

  • Largely Aquatic

Algae may occur

  • Moist Stones

  • Moist Soils and moist wood

  • Occur in association with fungi

  • All of these

Algae can be found on

  • Sloth bear

  • Dog

  • Camel

  • Rabbit

Which of the following is not correct with respect to Algae?

  • Algae is in highly variable forms

  • Colonial form of algae - Volvox

  • Filamentous forms of algae - Ulothrix and Spirogyra

  • Marine Forms - Kelps and small plant body

The reproduction in Algae occurs by

  • Vegetative

  • Asexual

  • Sexual

  • All of these

Asexual reproduction is by the  production of different types of spores. Out of that most common is

  • Carpospore

  • Zoospores

  • Basidiospores

  • Akinetes

Which of the following has flagellated male and female gametes?

  • Ulothrix

  • Volvox

  • Spirogyra

  • Fucus

Isogamous means

  • Both the gametes are equally motile

  • Both the gametes are unequal in terms of motility

  • Both the gametes are similar in size

  • All of these

Anisogamous

  • Gametes dissimilar in size

  • Gametes are similar in size but not in motility

  • Gametes are similar in motility but not in size

  • Gametes are similar in size and motility

Oogamous

  • Non-motile male gamete

  • Large male gamete

  • Non-motile female gamete

  • Small female gamete

Which of the following is an example of anisogamous reproduction in Algae?

  • Volvox

  • Eudorina

  • Fucus

  • Spirogyra

Which of the following is an example of oogamous reproduction?

  • Spirogyra

  • Ulothrix

  • Eudorina

  • Volvox

Which of the following is an example of isogamous reproduction?

  • Ulothrix

  • Eudorina

  • Volvox

  • Fucus

Algae are useful

  • Because at least half of the total carbon dioxide fixation on Earth is carried out by algae through photosynthesis.

  • Algae being photosynthetic can increase the level of dissolved oxygen in their immediate environment

  • They are primary producers of energy rich compounds and form the basis of the food cycles of all aquatic animals

  • All of the above

Hydrocolloid is

  • Water soluble substance

  • Water holding substance

  • Hydrogen gas containing substance

  • Oxygen gas containing substance

Algin

  • Water holding substance

  • Obtained from brown algae

  • Non sulfated water holding substance

  • All of these

Carrageen

  • Water holding substance

  • Obtained from red algae

  • Sulfated water holding substance

  • All of these

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