Free MCQs & Online Quiz Practice for Exams

Q: Platyhelminthes are (ETEA 2019)

A) Bilaterally symmetrical and diploblastic

B) Bilaterally symmetrical and triploblastic

C) Radially symmetrical and triploblastic

D) Radially symmetrical and diploblastic

Q: The scientific name of freshwater mussel is (ETEA 2019)

A) Mytilus edulis

B) Loligo pealeii

C) Anodonta grandis

D) Anodonta bairdi

Q: The epidermis of the xerophytes is covered with a waxy layer called: (ETEA 2005)

A) Cellulose

B) Cuticle

C) Chitin

D) Lignin

Q: A living tissue which in addition to its regular function also provides support to plant is: (ETEA 2006)

A) Xylem

B) Collenchyma

C) Sclerenchyma

D) Parenchyma

Q: Size of the flower of chrysanthemum may be enlarged by removing: (ETEA 2006)

A) All leaves

B) A few leaves

C) All branches except one

D) All floral buds except one

Q: Opening and closing of stomata is controlled by which of the following factors: (ETEA 2007+2006)

A) Sugar

B) pH

C) Potassium

D) All of the above

Q: Which one among the following is NOT a microelement needed by plants: (ETEA 2007+2006)

A) Magnesium

B) Sulphur

C) Iron

D) Potassium

Q: Which one of the following plants feeds on water mites: (ETEA 2007+2006)

A) Nepenthes

B) Utricularia

C) Dionea

D) Drosera

Q: Detritivores feed on: (ETEA 2007+2006)

A) Plants

B) Animals

C) Organic debris

D) Bacteria

Q: Which of the following physiological phenomena is responsible for guttation: (ETEA 2008)

A) Transpiration

B) Capillary rise of water

C) Root pressure

D) Tensile strength

Q: Swelling of dead bodies in water is due to: (ETEA 2010)

A) Osmosis

B) Diffusion

C) Expansion

D) Decomposition

Q: Phloem tissues are composed of: (ETEA 2010)

A) Tracheids

B) Trachea

C) Collenchyma

D) Sieve tubes

Q: Monotropa is a: (ETEA 2010)

A) Total parasite

B) Total saprophyte

C) Partial parasite

D) Partial saprophyte

Q: Fall of fruits in plants is caused by the deficiency of: (ETEA 2011)

A) Phosphorus

B) Potassium

C) Magnesium

D) Nitrogen

Q: Hydathodes are: (ETEA 2011)

A) Hormone secreting glands

B) Water secreting glands

C) Nectar secreting glands

D) Enzyme secreting glands

Q: Phytochromes are involved in: (ETEA 2012)

A) Photorespiration

B) Photophosphorylation

C) Photoperiodism

D) Phototropism

Q: Growth-promoting substance in plants is: (ETEA 2012)

A) FAD

B) Chlorophyll-a

C) IAA

D) ABA

Q: Abscisic acid (ABA) promotes: (ETEA 2012)

A) Triple response

B) Sex expression

C) Flower initiation

D) Leaf, flower and fruit fall

Q: Sunken stomata are present in: (ETEA 2012)

A) Hydrophytes

B) Xerophytes

C) Mesophytes

D) All of the above

Q: A set of xylem tissues are: (ETEA 2012)

A) Vessels tracheids parenchyma

B) Sieve tubes companion fibres

C) Parenchyma sieve tubes vessels

D) Fibres companion cells tracheids