how are simple tissue different from Complex tissue in plants

Difference between simple tissue and complex tissue :-
Simple tissue :-

1.  simple tissue are made of one type of tissues.
2. Example of these tissue are Parenchyma, Collenchymas, Sclerenchyma.

Complex tissue :-

1. Complex tissue are made of more than one type of tissue.
2. Example of of these tissue are Xylem and phloem

how many types of elements together make up the xylem tissue

Xylem is made of four principal elements :-

1. Tracheids
2. Xylem vessels
3. Xylem fibre
4. Xylem parenchyma

define the term tissue

The group of cells with similar function and origin is called as tissue

diagram of a plant cell

diagram of animal cell

what are the three principal functional areas of a cell

A cell has three principal function area which are following :-

1. Cell membrane - cell membrane is made of lipids and protein. It provides mechanical safety to cell organelles. It covers cytoplasma and nucleus from outer side.
2. Nucleus - the oval or circular structure found in the centre of a cell is called as nucleus. There is a two layered membrane around the nucleus. It is called as nuclear membrane. It separates the cytoplasm.

It is through nuclear membrane that substance of nucleoplasm are transferred.
Main components of nucleus are given below -

• Chromatin - chromatin is found near nuclear membrane in the nucleus. It is like a network of fibrils. It mainly contains DNA.
• Centriole - it contains RNA.

1. Cytoplasma - the remaining part of cell expect nucleus contains a matter called as cytoplasm. It contains different cell organelles. These cell organlless perform different works.

how is a prokaryotic cell different from a Eukaryotic cell

Difference between prokaryotic cell and Eukaryotic cell :-
Prokaryotic cell :-

1.  the size of prokaryotic sale remains small.
2.  the nuclear area contains chromatin only and it is usually called cyton.
3. It has single chromosome.
4. It does not contain membrane-bound cell organlless.

Eukaryotic cell :-

1. The size of Eukaryotic cell usually remail big. 
2. The nuclear area is wale clear and it is surrounded by nuclear membrane.
3. It has more chromosome in pairs.
4. It contains membrane-bound cell  organlless.

compare plant and animal cells

Plant cells :-

1. A plant cell has a cell wall of cellulose.
2. A plant cell contain chloroplasts.
3. A plant cells contains bigger vacuoles.

Animal cells :-

1.  animal cell does not contain cell wall.
2. Animal cell Donor contain chloroplast.
3. Animal cells contain centrosome.

what are similarities between Plant cell and Animal cell

 similarities between plant cell and animal cell
Plant cell

1.  It contains nucleus
2. It contains lysosome
3.  It contains plasma membrane
4. It contain Golgi apparatus
5.  it contains nuclear membrane.

Animal cell

1.   It also contains nucleus.
2.  it also contains lysosome.
3.  it also contains plasma membrane.
4. It also contains golgiaparatus.
5.  it also it also contains nuclear membrane.

what is osmosis

The  movement of water molecules from higher concentration to lower concentration through the same-permeable membrane is called as Osmosis. the movement of water molecules depend on substance dissolved in water

how does an Amoeba obtain its food

 unicellular organism. its cell contents vacuoles.one of these vacuoles is food vacuole. It remains filled with food. Through this amoeba gets its food.

where do the lipids and proteins constituting the cell membrane get synthesised?

Inside endoplasmic reticulum.

which organelle is known as the powerhouse of the cell?why?

 mitochondria is called as energy plant of a cell. In mitochondria energy produced which accumulated in the form of ATP. This energy is utilised in various type of activities. Hence, mitochondria is called as energy plant of powerhouse of the cells.

what would happen to the life of a cell if there was no Golgi apparatus

 Golgi body transfer substance inside and outside cell. This activity will stop in the absence of Golgi body. Lysosome will not be formed. Synthesis of many enzyme and hormone will stop and wastage will not be excrete out. All this will shorten the life of the cell.

what would happen if the plasma membrane ruptures or breaks down

 plasma membrane is on outer covering of cell which separates internal matter of a cell from external environment. Its nature is Semi permeable. If it brusts, the internal matter of the cell be mixed with the external environment.thus, selective work of the cell will be stopped leading to death of the cell

why are lysosomes known as suicide bags

 when the cell damaged, lysosome me brushed and the enzyme digest their own cell. Therefore, lysosome are also known as the suicide bag of the cell.

if the organisation of is cell is destroyed due to some physical or chemical influence, what will happen

At that time the cell will become a unable to perform most of its basic functions like respirations, nutrition, extraction and synthesis of protein. It will lead to disruption of all the other process causing death of the cell.

can you name the two organelles we have studied that contain their own genetic materials

Yes,

1. mitochondria ,
2. plastid.

why the plasma membrane called a selectively permeable membrane?

 the plasma membrane allow certain substance to pass through but do not allow other substance to do this. This is why plasma membrane is called so.

how do substance like carbon dioxide and water move in and out of the cell? discuss.

 when the concentration of carbon dioxide goes high inside the cell, it goes out through the process of diffusion, when the concentration of carbon dioxide from the external environment start going into the sale due to the same process.
 the molecules of the molecules of water pass from high concentration to low concentration due to Osmosis through the semipermeable membrane of the cell