CBSE Class- XI Guess Paper of Biology - 2011

Guess Paper-2011
CBSE Class- XI
(Biology)

(Cell- the fundamental unit of life)

Q.1: The largest cell in the human body is -
(a) Nerve cell
(b) Muscle cell
(c) Liver cell
(d) Kidney cell

Q.2: The barrier between the protoplasm and the other environment in an animal cells -
(a) Cell wall
(b) Nuclearmembrane
(c) Tonoplast
(d) Plasma membrane

Q.3: The term ‘Cell’ was given by -
(a) Leeuwenhoek
(b) Robert hooke
(c) Flemming
(d) Robert Brown

Q.4: Who proposed the cell theory? -
(a) Schleiden and Schwann
(b) Watson and Crick
(c) Darwin and Wallace
(d) Mendel and Morgan

Q.5: A plant cell differs from ananimal cell in the absence of -
(a) Endoplasmic Reticulum
(b) Mitochondria
(c) Ribosome
(d) Centrioles

Q.6: Centro some is found in -
(a) Cytoplasm
(b) Nucleus
(c) Chromosomes
(d) Nucleolus

Q.7: The power house of a cell is -
(a) Chloroplast
(b) Mitochondrion
(c) Golgi apparatus
(d) Nucleolus

Q.8: Within a cell the site of respiration (oxidation) is the -
(a) Ribosome
(b) Golgi apparatus
(c) Mitochondrion
(d) Endoplasmic Reticulum

Q.9: Which is called ‘Suicidal Bag’?
(a) Centrosome
(b) Lysosome
(c) Mesosome
(d) Chromosome

Q.10: Ribosomes are the center for -
(a) Respiration
(b) Photosynthesis
(c) Protein synthesis
(d) Fat synthesis

Q.11: Double membrane is absent in -
(a) Mitochondrion
(b) Chloroplast
(c) Nucleus
(d) Lysosome

Q.12: Cell organelle found only in Plant is -
(a) Golgi apparatus
(b) Mitochondria
(c) Plastids
(d) Ribosomes

Q.13: Organisms lacking nucleus and membrane bound organelle are -
(a) Diploids
(b) Prokaryotes
(c) Haploids
(d) Eukaryotes

Q.14:Animal cell is limited by -
(a) Plasma membrane
(b) Shell membrane
(c) Cell wall
(d) Basement membrane

Q.15: The network of Endoplasmic Reticulum is present in the -
(a) Nucleus
(b) Nucleolus
(c) Cytoplasm
(d) Chromosomes

Q.16: Lysosome are reservoirs of -
(a) Fat
(b) RNA
(c) Secretary Glycoprotein
(d) Hydrolytic Enzymes

Q.17: The membrane surrounding the vacuole of a plant cell is called -
(a) Tonoplast
(b) Plasma membrane
(c) Nuclearmembrane
(d) Cell wall

Q.18: Cell secretion is done by -
(a) Plastids
(b) ER
(c) Golgi apparatus
(d) Nucleolus

Q.19: Centrioles are associated with -
(a) DNA synthesis
(b) Reproduction
(c) Spindle formation
(d) Respiration

Q.20: Main difference between animal cell and plant cell is -
(a) Chromosome
(b) Ribosome
(c) Lysosome
(d) Endoplasmic Reticulum

Q.21:Animal cell lacking nuclei would also lack in -
(a) Chromosome
(b) Ribosome
(c) Lysosome
(d) Endoplasmic Reticulum

Q.22: Plasmolys is occurs due to -
(a) Absorption
(b) Endosmosis
(c) Osmosis
(d) Exosmosis

Q.23: A plant cell becomes turgid due to -
(a) Plasmolysis
(b) Exosmosis
(c) Endosmosis
(d) Electrolysis

Q.24: Solute concentration is higher in the external solution -
(a) Hypotonic
(b) Isotonic
(c) Hypertonic
(d) None of the above

Q.25: A cell placed in hypertonic solution will -
(a) Shrink
(b) Show Plasmolys is
(c) Swell up
(d) No change in shape or size

Q.26: The radiant energy of sunlight is converted to chemical energy and is stored as -
(a) AMP
(b) ADP
(c) ATP
(d) APP

Q.27: Which of the following organelle does not have membrane?
(a) Ribosome
(b) Nucleus
(c) Chloroplast
(d) Mitochondria

Q.28: Root hair absorbs water from soil through -
(a) Osmosis
(b) Active transport
(c) Diffusion
(d) Endocytos is

Q.29: The number of lenses in compound light microscope is -
(a) 2
(b) 3
(c) 4
(d) 1

Q.30: The history of the cell began in 1665 with the publication of Micrographia in London by -
(a) Robert Hooke
(b) Robert Brown
(c) Strasburger
(d) Dujardin

Q.31: Cell inclusions are -
(a) Non-living materials present in the cytoplasm
(b) Another name of cell organelle
(c) Cytoskeletal framework of cell
(d) Combined name for cell wall and plasma membrane

Q.32: Which cell organelle is not bounded by a membrane -
(a) Ribosome
(b) Lysosome
(c) ER
(d) Nucleus

Q.33: Which of the following cellular part possess a double membrane?
(a) Nucleus
(b) Chloroplast
(c) Mitochondrion
(d) All of the above

Q.34: Cristae and Oxysomes are associated with -
(a) Mitochondria
(b) Plastids
(c) Golgi apparatus
(d) Plasma membrane

Q.35:Karyotheca is another name of -
(a) Nuclearenvelope
(b) Nucleus
(c) Nuclearpores
(d) Nucleolus

Q.36: Cell organelle that acts as supporting skeletal framework of the cell is -
(a) Golgi apparatus
(b) Nucleus
(c) Mitochondria
(d) ER

Q.37: Plastids are present in -
(a) Animal cellonly
(b) Plant cells only
(c) Both animal cells and Plant cells
(d) Neither animal nor plant cell

Q.38:Cell wall of plant is chiefly composed of -
(a) Hemicellulose
(b) Cellulose
(c) Phospholipids
(d) Proteins

Q.39: Intercellular connections of plant cells are called -
(a) Middle lamella
(b) Micro fibrils
(c) Matrix
(d) Plasmodesmata

Q.40: Genes are located on the -
(a) Chromosomes
(b) Nucleolus
(c) Nuclearmembrane
(d) Plasma membrane

Q.41:Chromatin consists of -
(a) RNA
(b) DNA
(c) RNA and histones (proteins)
(d) DNA and histones (proteins)

Q.42: Different types of chromosomes can be recognized by the positions of the following separating the two arms -
(a) Centromere
(b) Genes
(c) Spindle
(d) Nucleus

Q.43: Name of the process that requires energy provided by ATP -
(a) Diffusion
(b) Osmosis
(c) Active transport
(d) Plasmolys is




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