Lipid molecules in the cell are sythesized by
  • golgi apparatus
  • plastids
  • rough endoplasmic reticulum
  • smooth endoplasmic reticulum
Lysosome arises from
  • nucleus
  • golgi apparatus
  • mitochondria
  • endoplasmic reticulum
The proteins and lipids, essential for building the cell membrane, are manufactured by
  • rough endoplasmic reticulum
  • plasma membrane
  • mitochondria
  • golgi apparatus
The only cell organelle seen in prokaryotic cell is
  • ribosomes
  • plastids
  • lysosomes
  • mitochondria
Cell theory was given by
  • Schleiden and Schwann
  • Haeckel
  • Virchow
  • Hooke
Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell?
  • Vacuoles
  • Lysosomes
  • Golgi apparatus
  • Smooth endoplasmic reticulum
Organelle without a cell membrane is
  • ribosome
  • chloroplast
  • golgi apparatus
  • nucleus
The following are a few definitions of osmosis. Read carefully and select the correct definition
  • 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 water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane
  • Movement of solute molecules from lower concentration to higher concentration of solution through a semipermeable membrane
Select the odd one out
  • The movement of water across a semi permeable membrane is affected by the amount of substances dissolved in it.
  • Molecules soluble in organic solvents can easily pass through the membrane
  • Membranes are made of organic molecules like proteins and lipids
  • Plasma membranes contain chitin sugar in plants
Plasmolysis in a plant cell is defined as
  • shrinkage of nucleoplasm
  • break down (lysis ) of plasma membrane in hypotonic medium
  • none of them
  • shrinkage of cytoplasm in hypertonic medium
Find out the correct sentence
  • Endoplasmic reticulum is related with the destruction of plasma membrane
  • Nucleoid is present inside the nucleoplasm of eukaryotic nucleus
  • Enzymes packed in Lysosomes are made through RER (rough endoplasmic reticulum
  • Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipid and protein respectively
Living cells were discovered by
  • Robert Hooke
  • Purkinje
  • Robert Brown
  • Leeuwenhoek
Silver nitrate solution is used to study
  • mitochondria
  • endoplasmic reticulum
  • golgi apparatus
  • nucleus
Organelle other than nucleus, containing DNA is
  • endoplasmic reticulum
  • golgi apparatus
  • lysosome
  • mitochondria
Amoeba acquires its food through a process, termed
  • endocytosis
  • plasmolysis
  • exocytosis
  • exocytosis and endocytosis both
Chromosomes are made up of
  • DNA
  • DNA and protein
  • RNA
  • protein
Which of these is not related to endoplasmic reticulum?
  • It behaves as transport channel for proteins between nucleus and cytoplasm
  • It can be the site of energy generation
  • It transports materials between various regions in cytoplasm
  • It can be the site for some biochemical activities of the cell
Find out the false sentences
  • Cytoplasm is called as protoplasm
  • 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.
  • Golgi apparatus is involved with the formation of lysosomes
Which out of the following is not a function of vacuole?
  • Providing turgidity and rigidity to the cell
  • Storage
  • Waste excretion
  • Locomotion
Cell wall of which one of these is not made up of cellulose?
  • Bacteria
  • Cactus
  • Hydrilla
  • Mango tree
Colourless plastids are known as
  • Leucoplasts
  • Chromoplasts
  • Chloroplasts
  • Protoplast
Which of the following are covered by a single membrane?
  • Mitochondria
  • Lysosome
  • Both Lysosome and Vacuole
  • Vacuole
The cell organelle involved in forming complex sugars from simple sugars are
  • golgi apparatus
  • endoplasmic reticulum
  • ribosomes
  • plastids
A cell will swell up if
  • Concentration of water molecules does not matter
  • The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium
  • The concentration of water molecules is same in the cell and in the surrounding medium
  • The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell
1 µm is
  • \(10^{–6} m\)
  • \(10^{–9} m\)
  • \(10^{–3} m\)
  • \(10^{–10} m\)
Kitchen of the cell is
  • golgi apparatus
  • mitochondria
  • chloroplast
  • endoplasmic reticulum
Cell arises from pre-existing cell was stated by
  • Haeckel
  • Schleiden
  • Virchow
  • Hooke
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
  • (ii) and (iii)
  • (iii) and (iv)
  • (iv) and (i)
  • (i) and (ii)
What does the term "prokaryotic" literally mean based on its Greek roots?
  • True nucleus
  • Primitive nucleus
  • Multi-nucleus
  • No nucleus
Which organelle is only found in a plant cell?
  • nucleus
  • chloroplast
  • mitochondria
  • cell membrane
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