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11th Biology Weekly Test - 3 ( Bio - Botany - Cell: The Unit of Life )

MABS Institution

11th Biology Weekly Test - 3 ( Bio - Botany - Cell: The Unit of Life )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

Life span of the cells is determined by ___________

Kinetochore
Satellite
Chromatin
Telomere

Lysosomes release theirenzymes outer side the cell to digestother cells _________________

Autolysis
Phagocytosis
Exocytosis
Peroxisomes

Which organelle is present in higher number in secretory cell

Mitochondria
Chloroplast
Nucleus
Dictyosomes

__________________uses beam of accelerated electrons as source of illumination.

Electron Microscope
Transmission Electron Microscope
Scanning Electron Microscope
Cells

The functions of golgi body includes:

helping cell division
initialing protein synthesis
Transporting and storing lipids
None of the above

Stability to chromosome is offered by ___________

Satellite
Telomere
Kinetochore
Nucleolus

__________ occurs in budding yeasts withbind a single microtubule.

Holocentric chromosomes
Point centromere
Localized centromere
Regional centromere

The space between two nuclear membranes is called________________________

Sulphur granules
Nucleus
Pore complex
Perinuclear space

____________________are not tightly condensed during interphase.

Chromosome
Euchromatin
Heterochromatin
Nucleolus

_________________is involved in protein synthesis

Cisternae
Vesicles
Tubules
Rough Endoplasmic Reticulum

In the following diagram what do A and B indicate?

SER, Mitochondria
Ribosome, Mitochondria
Mitochondria, Golgi apparatus
RER, Mitochondria

What is the function of SER?

Synthesis of protein
Synthesis of lipids
Synthesis of enzyme
All the above

____________________was first introduced by Ernest Ruska.

Electron Microscope
Transmission Electron Microscope
Scanning Electron Microscope
Cells

Cell wall is not present in:

Bacteria
Fungi
Animal cell
plant cell

________________________ is a thin amorphous layer which cements two adjacent cells.

Cell wall
Primary wall
Secondary wall
Middle lamellae

Who proposed the cell theory_________.

Singer and Nicholsen
Schwann and Schleiden
Hook and Brown
Robertson

The subunits of prokaryotic ribosomes are ______.

50S + 30S
60S + 40S
40S + 30S
60S + 50S

Theprotoplasm exist in semisolid(jelly-like) state called_____________________________

Protoplasm
Homogeneous
Heterogeneous
Gel

____________________________was discovered, by Z. Sigmondy.

Primary magnification
Secondary magnification
Dark Field Microscope
Patch stop

___________comprising the plasma membrane, nuclear membrane, endoplasmic reticulum.

Signal transduction
Cytoplasm
Endomembrane system
Endoplasmic reticulum

Common light microscope which has many lenses are called as_________________________

Z. Jansen.
Compound microscope
Microscope
Bright field microscope

Idea of cell theory was first proposed by:

Matthias Schleiden
Theodor schwann
H.J. Dutrochet
Rudolf Virchow

_________________is used to track and date recent evolutionary time.

Golgi bodies
Mitochondria
Mitochondrial DNA
Chloroplasts

_________________________comparisons are used to trace human origins.

Golgi bodies
Mitochondria
Mitochondrial DNA
Chloroplasts

The distance between two adjacent lines is 10 \(\mu \)m in______________________

Phase Contrast Microscope
Micrometry
Ocular Micrometer
Stage Micrometer

One of the many signalling molecules used by plants, fungi and animal cell is:

sodium chloride
cuprice oxide·
Nitric oxide
None of the above

_____________ are oval membrane bound vacuolar structure.

Cisternae
Vesicles
Tubules
Rough Endoplasmic Reticulum

_____________________________the kinetochore is assembled as a result of protein recognition of specific DNA sequences.

Holocentric chromosomes
Point centromere
Localized centromere
Regional centromere

____________________all metabolic reactions take place inside the cells.

Cell theory
Prions
Tracheids
Horny cells

The refractive index of protoplasm is________.

1.4
2.4
3.4
4.4

Lysosomes originate from ________

Mitochondrion
Nucleus
ER
Golgi bodies

Give the names of A and B in the given diagram

Stalk, Satellite
Centromere, Satellite
Satellite, Stalk
Satellite, Centromere

Which of the following microscope produce 3D-image?

Phase contrast
TEM
SEM
Dark field

Which of the following organelle is believed to be an endosymbiont?

Ribosomes
Mitochondrion
Golgi bodies
Nucleus

A typical chromosome has narrow zones called ____________________

constrictions
Primary constriction
Monocentric
Nucleolar organizers

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