SET B
ASSESSMENT II
CLASS XI BIOLOGY
MAX. MARKS: 30 TIME: 1 HR
NAME____________ CLASS_____SECTION__________ ROLL NO.
This paper comprises of two Parts- I and II. Answer all Questions
Ensure that you focus on key words/phrases so as to complete in the
stipulated time
PART I (20 Marks)
Q.1 a) State the best known contributions of the following: [2X1]
i) Janssen and Janssen ii) J. B. Sumner
b) Give reasons for the following: [2x2]
i) Starch and glycogen are more suitable than glucose as storage products.
ii) Prophase I is the most important phase of meiosis.
Q.2 ‘Cell is a self-contained unit.’ Comment. [4]
Q.3 i) Give a diagrammatic representation of a generalized eukaryotic cell. [5]
ii) Give a diagrammatic representation of Unit Membrane Concept
of plasma membrane. [5]
PART II (10 Marks)
Q.4 Give an account of general classification of carbohydrates with illustrations. [5]
OR
Give the important differences between mitosis and meiosis.
Q.5 Describe the fluid-mosaic model of membrane. Enumerate the [5]
various functions performed by plasma membrane.
OR
Discuss the important theories put forth to explain the mechanism
ASSESSMENT II
CLASS XI BIOLOGY
MAX. MARKS: 30 TIME: 1 HR
NAME____________ CLASS_____SECTION__________ ROLL NO.
This paper comprises of two Parts- I and II. Answer all Questions
Ensure that you focus on key words/phrases so as to complete in the
stipulated time
PART I (20 Marks)
Q.1 a) State the best known contributions of the following: [2X1]
i) Janssen and Janssen ii) J. B. Sumner
b) Give reasons for the following: [2x2]
i) Starch and glycogen are more suitable than glucose as storage products.
ii) Prophase I is the most important phase of meiosis.
Q.2 ‘Cell is a self-contained unit.’ Comment. [4]
Q.3 i) Give a diagrammatic representation of a generalized eukaryotic cell. [5]
ii) Give a diagrammatic representation of Unit Membrane Concept
of plasma membrane. [5]
PART II (10 Marks)
Q.4 Give an account of general classification of carbohydrates with illustrations. [5]
OR
Give the important differences between mitosis and meiosis.
Q.5 Describe the fluid-mosaic model of membrane. Enumerate the [5]
various functions performed by plasma membrane.
OR
Discuss the important theories put forth to explain the mechanism
