BIOLOGY - THE FUNDAMENTAL UNIT OF LIFE
________ is called the energy currency of the cell
Endoplasmic reticulum
ATP
Mitochondria
None of the above
________ is called the powerhouse of the cell
ATP
Mitochondria
Red blood cells
None of the above
Which of the following statements is incorrect?
Cytoplasm is also known as protoplasm
Lysosomes are known as the suicide bags of the cell
Mitochondria has its own DNA
None of the above
Where are the essential proteins and lipids required for cell membrane, manufactured?
Lysosome
Endoplasmic reticulum
Mitochondria
None of the above
Which of the following statement marks as a difference between plant cell and animal cell?
Plant cells have cell wall which animal cells do not.
Plant cells do not have vacuole while animal cells do have.
Plant cells have only cell membrane while animal cells have both cell wall as well as cell membrane.
Plant cells have more plastids while animal cells have few plastids.
Which of the following statements is not related to the endoplasmic reticulum?
It behaves as transport channel for proteins between nucleus and cytoplasm.
It transports materials between various regions in cytoplasm.
It can be the site of energy generation.
It can be the site of some biochemical activities of the cell.
Here is shown a figure of nucleus with some of its components labeled as A, B, C and D. Name these components correctly.
A – Nucleons; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
A – Nucleus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nuclear wall
Paheli and Bhoojo took a peel of Rhoeo leaf and kept it under a solution on a slide of a microscope. They observed that the cell has shrinked and has got plasmolyzed. Which of the below statement is true according to the observation.
The solution is hypotonic and exosmosis has taken place.
The solution is hypertonic and exosmosis has taken place
The solution is hypertonic and endosmosis has taken place
The solution is hypotonic and endosmosis has taken place
which of the below statement is true about viruses
They have their own membrane and are unicellular
They use our cell machinery to multiply
They are prokaryotes lacking nuclear membrane and few cell organelles
All of the above
Chromosomes are composed of
RNA and lipids
DNA and lipids
proteins
DNA and proteins
Label the following
a - Golgi Apparatus; b - Endoplasmic Reticulum; c - cisterns
a - Endoplasmic Reticulum; b - Cisterns; c - Vesicle
a - Golgi Apparatus; b - vesicle; c - Cisterns
a - Golgi Apparatus; b - Cisterns; c - vesicle
Lysosomes can:
Digest their own cell
break complex substances into simpler form.
Digest foreign particles
All of them
Which among the following is not a fun
They help to store the toxic metabolic by-products of the plant cell.
They provide turgidity and rigidity to the plant cell.
They help the plant in its growth by the process of cell division.
They help to maintain the osmotic pressure in the cell.
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