Class 11 Biology Multiple Choice Questions(MCQs) & Answers
Class 11 Biology
QUESTIONS
Class 11 Biology Objective type Questions & Answers
1 When a bacteriophage, in its lytic phase carries some of the bacterium’s partially digested chromosome with it to another host cell, the process is called:
A transformation
B transduction
C transportation
D conjugation
2 It is a site of certain metabolic pathways:
A Cell wall
B Plasma membrane
C Cytoplasm
D A & B
3 It is the first to be formed:
A Primary wall
B Secondary wall
C Tertiary wall
D Middle lamella
4 It is a true cell wall in a newly growing cell:
A Primary wall
B Plasma membrane
C Secondary wall
D Middle lamella
5 Many substances that are not needed constantly enter the cell by:
A Passive transport
B Active transport
C Negative transport
D Fast transport
6 Mycorrhiza is association of:
A Root-fungus
B Stem-fungus
C Alga-fungus
D Bacteria-fungus
7 Sexual reproduction in which small male gamete is motile while the large female gamete is immotile is called:
A Isogamy
B Anisogamy
C Oogamy
D Karyogamy
8 Ulva is:
A Unicellular
B Filamentous
C Tubular
D None of these
9 Which of the following is a human disease caused by Fungi?
A Powdery mildew
B Ring worm
C Rusts
D Downy mildew
10 Smut is caused by:
A Fungi
B Plasmodium
C Virus
D Bacteria