$CATEGORY: Science - TicTacLearn/5. The fundamental unit of life/5. The fundamental unit of life--What is a Cell made up of? What is the structural organisation of a cell?

//Multiple Choice

Which of the following is not part of the cell envelope in bacteria?
{
~ Plasma membrane
~ Cell wall
~ Capsule
= Nucleoid
}

The cell wall in plant cells is mainly composed of\:
{
~ Fats
= Cellulose
~ Glycogen
~ Peptidoglycan
}

Which of the following organisms do not contain the cell wall?
{
~ Bacteria
~ Yeast
~ Humans
= Mango tree
}

Which of the following is true regarding the function of the cell wall?
{
~ Control what enters and leaves the cell
= Provide structural support and protection
~ Store energy
~ Packaging of proteins
}

The outermost layer of the plant cell is called\:
{
~ Cell membrane
~ Capsule
= Cell wall
~ Cytoplasm
}

The rate of diffusion is maximum in\:
{
~ Liquid
~ Solid
= Gases
~ Plasma
}

The cell membrane is the\:
{
~ Living and permeable part of the cell.
~ Dead and permeable part of the cell.
~ Dead and semi-permeable parts of the cell.
= Living and semi-permeable parts of the cell.
}

Which of the following is a major driving force behind the diffusion?
{
~ Pressure difference
~ Potential difference
~ Energy from ATP
= Concentration gradient
}

Which of the following structures regulates the osmosis in a cell?
{
~ Nucleus
~ Cell wall
= Plasma membrane
~ Mitochondria
}

What happens to a plant cell in an isotonic solution?
{
~ It shrinks
~ It becomes turgid
~ It undergoes plasmolysis
= It remains unchanged
}

//True or False

The cell wall in plant cells is completely permeable to all substances.{T}

Cytoplasm is part of the cell envelope.{F}

Varieties of chemical reactions take place inside the cell wall.{F}

A cell membrane is also known as a selectively permeable membrane.{T}

The outermost membrane of animal cells is the cell membrane.{T}

The process of osmosis is carried out in both plant as well as animal cells.{T}

Diffusion only occurs in liquids.{F}

Certain areas of the cell are surrounded by the cell wall.{F}

The cell shrinks when put in an isotonic solution.{F}

Diffusion is an example of passive transport.{T}


//Match the Following

Match the following items from Column A with their correct corresponding options from Column B\:
{
= Bacteria -> Peptidoglycan
= Plants -> Cellulose
= Fungi -> Chitin
= Algae -> Mostly cellulose
}

Match the following items from Column A with their correct corresponding options from Column B\:
{
= Active transport -> Movement of substances against their gradient using energy.
= Diffusion -> Movement of molecules from high to low concentration.
= Osmosis -> Movement of water through a membrane.
= Reverse osmosis -> Movement of water against the concentration gradient using external pressure.
}

Match the following items from Column A with their correct corresponding options from Column B\:
{
= Isotonic -> Equal concentration of solutes inside and outside the cell.
= Hypertonic -> Higher concentration of solutes outside the cell.
= Hypotonic -> Higher concentration of solutes inside the cell
= Plasmolysis -> Shrinking of the cell membrane in plants due to water loss.
}

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