Botony Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

Edible mushrooms are
Agarics bisporous
Rizopus
Mucor
Neurospora

The method of respiration which takes place in euglena is
Contraction
Absorption
Diffusion
Conduction

Which one of the following is a short day plant
Mirabillis
Nicotiana tobacum
Beta vulgaris
Spinacea oleracea

Which one of the following is not a kind of cell of xylem tissue
Trachcids
Tracheae
Companion Cells
Wood fibers

The deficiency of Molybdenum. a trace element present in the soil causes
Red rot of sugarcane
Whiptail disease of Cauliflower
White rust disease of Amaranthus
Black rust disease of wheat

Longitudinal half of the chromosome is called
Centromere
Chromatid
Chromatin
None of these

In mitochondria,Which of the following processes takes(s) places
Tricarboxylic acid cycle
Electrotransport system and oxidative phosphorylation
ß-oxidation of fatty acid
All of these

Which of the following structures is involved in the process of photo-respiration
Lysosome
Golgi body
Peroxisome
Ribosome

An exapmple of polyearpic plant is
Pea
Mango
Bamboo
Pigeon Pea

The bacterial cell wall consists of
Cellulose
Lignin
Mucopeptide
Pectose

The single membrane surrounding vacuoles in plant cells is known as
Apoplast
Symplast
Tonoplast
Chloroplast

Amoebic dysentery is caused by
Entamoeba coli
Entamoeba coli
Entamoeba histolytica
Amoeba proteus

The infectious stage of Plasmodium is
Trophozoite
Schizont
Merozoite
Sporozoite

- Asafoetida
I and IV
III Only
II and III
I only

Which one of the following statement(s) about Blue Green Algae (BGis/are not correct
Sargassum belongs to BGA
Spirulina is the edible form of BGA
They have survived for about 3 billion years
They are gram negative photosynthetic cyanobacteria

The chromonema is a coiled structure, which can be easily separated in case of
Telonemic coil
Chromonemic coil
Plectonemic coil
Paranemic coil

In 1905, Albert Einstein discovered
Photoelectric effect, special theory relativity and Brownian motion
Special theory of relativity and photoelectric effect
Brownian motion and theory of relativity
Photoelectric effect and Brownian motion

The colour of tomato fruits is due to the presence of
Flavonoids
Tannins
Anthocyanins
Carotenoids

Which of the following is odd one out
Lycophyta
Psilophyta
Filicophyta
Hysterophyta

The strength of trees are due to the presence of _________ tissues
Phloem, parenchyma
Xylem, sclerenchyma
Parenchyma, sclerenchyma
Xylem, phloem

Which of the following pair is not a natural pesticide?
Castor Oil and Turmeric
Malathion and DDT
Neem and Castor Oil
Turmeric and Neem

In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
Water limits and fire
None of the above
Insects and fungi
Limited sunlight and paucity of nutrients

Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
Habitat
Home range
Ecological niche
Ecotone

Eugenia caryophyllus is the botanical name of
Clove
Eucalyptus
Coriander
Cardamom

The younger, outermost wood, which is living wood in a growing tree, is known as
White wood
Sap wood
Soft wood
Outer wood

The xylem in plants are responsible for
Transport of oxygen
Transport of amino acids
Transport of water
Transport of food

Air pollution effects on plants are mostly found on
Roots
Stems
Leaves
Flowers

In plants, water is absorbed by the root hairs, by a process called
Osmosis
Perspiration
Transpiration
Respiration

Which one of the following is responsible for converting milk into curd
Bacteria
Insects
Fungi
Virus

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Botony Question Answers, PSC, UPSC, IBPS, SSC Previous Papers