CBSE Class 11 Biology The Living Organism MCQs

Question :  ____________ system of classification were based on natural affinities among the organisms

a) Natural

b) Artificial

c) Sexual

d) Phycogentic

Answer :  Natural

Question :  Gammae are multicellular green structure for vegetative propagation. There are found inside Gemma cups in

a) Marchantia thallus

b) Funaria protanema

c) Riccia capsule

d) Fern prothallus

Answer :  Marchantia thallus

Question :  Kingdom pantea includes all multicellular eukaryotic, photosynthetic, organism. In traditional plant kingdom divided in two subgroup one is cryptogam, choose the another one

a) Phanerogamae

b) Cryptogamae ii

c) Custogamae

d) Chemotogmae

Answer :  Phanerogamae

Question :  Which of the following is a gametophyte free living structure formed in pteridophytes.

a) Prothallus

b) Sporophytes

c) Microporophylls

d) Megasporophylls

Answer :  Prothallus

Question :  In which of the following, the diploid sporophytes is the dominant, independent photosynthetic and vascular plant body?

a) Pteridophytes

b) Bryophytes

c) Thallophytes

d) Gametophytes

Answer :  Pteridophytes

Question :  If the diploid number of a flowering plant is 36. What would be the chromosomes number in its endosperm?

a) 54

b) 36

c) 18

d) 72

Answer :  54

Question :  A number of algae are edible and commercially available as food sources. There are three main classes of algae. Choose the odd one

a) Brophycae

b) Chlorophyceae

c) Rhodophyceae

d) Phaeophyceae

Answer :  Brophycae

Question :  Algae are chlorophyll bearing , simple thalloid, avascular plants. They are usually aquatic. Choose one algae which is used commercially

a) Carrageenin

b) Phycocolliod

c) Marrgeenin

d) Gelidennin

Answer :  Carrageenin

Question :  System of classification that employs numerical data to evaluate similarities and differences is known as

a) Phenetics

b) Cytotaxonomy

c) Biosystematics

d) Chemotaxonomy

Answer :  Phenetics

Question :  Development of several embroyos in one seeds out of which ony one survives is of common occurrence in pinus called

a) Polyembryony

b) Synerids

c) Monoembroyony

d) Siphonogamy

Answer :  Polyembryony