Question

Plant cells have a fixed shape which is
(a) Round
(b) Square
(c) Rectangular
(d) None of the above

Answer 1

Hint: Cells are the functional and structural unit of living things which are building blocks of the human body as humans composed of trillions of cells that provide structure to their body. Some parts of cells consist of organelles to perform a specific task within the cell.

Complete answer:
Plant cells have a fixed shape which is rectangular. These two cells are eukaryotic which are found in green plants and photosynthetic eukaryotes which have a membrane-bound nucleus. Plant cells are bigger than animal cells and are rectangular. They consist of structural organelles such as cell walls, vacuoles, plastids that are not found in an animal cell. An animal cell constitutes cilia, flagella, lysosomes, and centrioles which are absent in plant cells. They constitute cellulose, plastids, and hemicellulose which are important for the process of photosynthesis and help in the storage of starch and various large vacuoles which are responsible for the regulation of turgor pressure inside the cell.

Additional information:
-Plant cell consists of the organelles which are responsible for producing hormones and enzymes to provide energy to the plant cell.
-The new cells enhance the growth of the plant which are made with the help of DNA. These are enclosed within the nucleus which is a membranous structure and present at the center of the cell. -Plant cells contain cell organelles among which chloroplast, Golgi bodies, endoplasmic reticulum, peroxisomes, and plasmodesmata are some.
-The cell wall is present in the plant cell as the outermost covering of the plant cell which helps in the protection of the plant and gives it a definite shape.
-The cell wall consists of two layers which include a middle lamella and a primary cell wall.
-The strengthening of the layer is through the help of middle lamella.
-The primary cell wall is made up of cellulose which helps with the process of dividing and maturing.

So, the correct answer is 'Rectangular'.

Note:
- Plants have definite shapes due to the presence of a rigid cell wall which takes in a lot of water and helps them in retaining their shape.
- The chloroplast helps in the manufacturing of food through the process of photosynthesis and helps in the storage of the waste of the plant cell.
- Sun's 16 energy is used by the plants and the remaining goes to the human beings and animals in the form of carbohydrates and sugar.