Questions & Answers: "The Fundamental Unit of Life"
Complete guide to "The Fundamental Unit of Life" for Biology students. Below you will find important questions and model answers to help you prepare.
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29 QuestionsWhich of the following can be made into crystal?
Options
A Bacterium
An Amoeba
A Virus
A Sperm
A cell will swell up if
Options
The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium
The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell
The concentration of water molecules is same in the cell and in the surrounding medium
Concentration of water molecules does not matter
Chromosomes are made up of
Options
DNA
protein
DNA and protein
RNA
Which of these options are not a function of Ribosomes? (i) It helps in manufacture of protein molecules (ii) It helps in manufacture of enzymes (iii) It helps in manufacture of hormones (iv) It helps in manufacture of starch molecules
Options
(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(iv) and (i)
Which of these is not related to endoplasmic reticulum?
Options
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 for some biochemical activities of the cell
Following are a few definitions of osmosis (Read carefully and select the correct definition)
Options
Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
Movement of solvent molecules from its higher concentration to lower concentration
Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane
Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane
Plasmolysis in a plant cell is defined as
Options
break down (lysis) of plasma membrane in hypotonic medium
shrinkage of cytoplasm in hypertonic medium
shrinkage of nucleoplasm
none of them
Which of the following are covered by a single membrane?
Options
Mitochondria
Vacuole
Lysosome
Plastid
Find out the false sentences
Options
Golgi apparatus is involved with the formation of lysosomes
Nucleus, mitochondria and plastid have DNA; hence they are able to make their own structural proteins
Mitochondria is said to be the power house of the cell as ATP is generated in them.
Cytoplasm is called as protoplasm.
Find out the correct sentence
Options
Enzymes packed in Lysosomes are made through RER (rough endoplasmic reticulum)
Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively
Endoplasmic reticulum is related with the destruction of plasma membrane
Nucleoid is present inside the nucleoplasm of eukaryotic nucleus
Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?
Options
Golgi apparatus
Lysosomes
Smooth endoplasmic reticulum
Vacuoles
The proteins and lipids, essential for building the cell membrane, are manufactured by
Options
rough endoplasmic reticulum
golgi apparatus
plasma membrane
mitochondria
The undefined nuclear region of prokaryotes are also known as
Options
nucleus
nucleolus
nucleic acid
nucleoid
The cell organelle involved in forming complex sugars from simple sugars are
Options
endoplasmic reticulum
ribosomes
plastids
golgi apparatus
Which out of the following is not a function of vacuole?
Options
Storage
Providing turgidity and rigidity to the cell
Waste excretion
Locomotion
Amoeba acquires its food through a process, termed
Options
exocytosis
endocytosis
plasmolysis
exocytosis and endocytosis both
Cell wall of which one of these is not made up of cellulose?
Options
Bacteria
Hydrilla
Mango tree
Cactus
Silver nitrate solution is used to study
Options
endoplasmic reticulum
golgi apparatus
nucleus
mitochondria
Organelle other than nucleus, containing DNA is
Options
endoplasmic reticulum
golgi apparatus
mitochondria
lysosome
Kitchen of the cell is
Options
mitochondria
endoplasmic reticulum
chloroplast
golgi apparatus
Lipid molecules in the cell are sythesized by
Options
smooth endoplasmic reticulum
rough endoplasmic reticulum
golgi apparatus
plastids
Cell arises from pre-existing cell was stated by
Options
Haeckel
Virchow
Hooke
Schleiden
Cell theory was given by
Options
Schleiden and Schwann
Virchow
Hooke
Haeckel
The only cell organelle seen in prokaryotic cell is
Options
mitochondria
ribosomes
plastids
lysosomes
Organelle without a cell membrane is
Options
ribosome
golgi apparatus
chloroplast
nucleus
1 µm is
Options
Lysosome arises from
Options
endoplasmic reticulum
golgi apparatus
nucleus
mitochondria
Living cells were discovered by
Options
Robert Hooke
Purkinje
Leeuwenhoek
Robert Brown
Select the odd one out
Options
The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
Membranes are made of organic molecules like proteins and lipids.
Molecules soluble in organic solvents can easily pass through the membrane.
Plasma membranes contain chitin sugar in plants.