Question No:1
Tonoplasm is made up of
(I) H20
(II) Metabolic bye products
(III) Secretory substances
(IV) Excretory materials
(A) I only
(B) I, IV only
(C) I, II, IV only
(D) I, II, III, IV
Question No:2
Algae with multinucleate, haploid condition is
(A) Mucor
(B) Vaucheria
(C) Spirogyra
(D) Rhizopus
(A) A, B
(B) B, C
(C) B
(D) C, D
Question No:3
Structural, functional and hereditary unit of all living organisms is
(A) Nucleus
(B) Protoplasm
(C) Cell
(D) Gene
Question No:4
Single, circular, naked, coiled DNA molecule of a prokaryote represents
(A) Nucleoid
(B) Chromosome
(C) Heterokaryon
(D) Plasmid
Question No:5
The study of cells is evolved into a branch of science with the
(A) Discovery of a cells by Robert Hooke
(B) Publication of micrographia
(C) Invention of microscope by Zacharias Jannsen
(D) Discovery of bacteria by Leeuwenhoek
Question No:6
The scope of cell theory was extended by
(A) Schleiden & Schwann
(B) R. Virchow
(C) Robert Hooke
(D) Corti
Question No:7
Living cells having a distinct cell wall were first discovered by Leeuwenhoek are
(A) Bacteria
(B) Cork cells
(C) Blue green algae
(D) Mesophyll cells
Question No:8
Middle lamellum is chemically rich in
(A) Suberin
(B) Pectin
(C) Chitin
(D) Lignin
Question No:9
Cell plate which transforms into middle lamellum is secreted by
(A) Plasma membrane
(B) Golgi complex
(C) ER
(D) Phragmoplast
Question No:10
Thin areas in the primary wall are called
(A) Pits
(B) Primary pit fields
(C) Plasmodesmata
(D) Torus
Question No:11
Frame work of plant cell wall is formed by
(A) Cellulose microfibrils
(B) Pectin
(C) Mucopeptides
(D) Cisternae of golgi complex
Question No:12
Thickness of the cell wall is increased by a process called
(A) Intussuception
(B) Apposition
(C) Gelatinization
(D) Precipitation
Question No:13
Increase of the following results due to intussusception is
(A) Surf ace area
(B) Thickness
(C) Permeability
(D) Flexibility
Question No:14
Highly rigid cell wall in the following is
(A) Suberised wall
(B) Lignified wall
(C) Cutinised wall
(D) Primary cellwall
Question No:15
The structure that acts as intercellular cementing substance and binds adjacent cells together is
(A) Desomosome
(B) Primary cellwall
(C) Middle lamellum
(D) Secondary cellwall
Question No:16
The cell wall is not involved in
(A) Absorption
(B) Secretion
(C) Translocation
(D) Osmoregulation
Question No:17
Which of the following is a wrong statement
(A) Pit cavity is uniformly wide in a simple pit
(B) The thick middle portion of middle lamellum crossing the borderd pits is called torus
(C) The diameter of the pit chamber gradually decreases towards Lumen of the cell in simple pit.
(D) Secondary wall is absent in meristematic cells.
Question No:18
Regarding simple pits, the true statement is
(A) Secondary wall arches over the pit chamber
(B) Diameter of pit chamber is uniform throughout
(C) Diameter of pit aperture is bigger than that of pit cavity
(D) They are formed over the primary pit field only
Question No:19
Find out the incorrect statement
(A) Growth by opposition is particularly obvious in secondary walls
(B) Thin areas in primary wall are called primary pit fields
(C) Pit membrane of bordered pit pair has torus in the centre
(D) Deposition of secondary wall keeps pace with cell enlargement
Question No:20
Phragmoplast is derived from
(A) Spindle apparatus
(B) Spindle fragments
(C) Cell plate
(D) Middle lamellum