Cell Structure

Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life. Who was the first person to discover plant cells? [[a) Robert Hooke->Correct Answer]] [[b) Schwann and Schleiden->Incorrect Answer]] [[c) Antonie van Leeuwenhoek->Incorrect]] [[d) Peter Smith->Wrong Answer]]

''The story behind the discovery:'' While observing cork through his microscope, Hooke saw tiny boxlike cavities, which he illustrated and described as cells. He had discovered plant cells! Hooke's discovery led to the understanding of cells as the smallest units of life, which is the foundation of cell theory. [[Let's explore what the make up of a cell is.->Cell and its components]]

It wasn't Schwann and Schleiden, who discoverd the first plant cells. The right answer is [[Robert Hooke.->Robert Hooke]]

Antonie van Leeuwenhoek wasn't the person who discoverd the presence of cells. //Trivia:// Antonie Van Leeuwenhoek from the Netherlands sold buttons and clothes to earn a living, in his spare time grinded glasses and constructed simple microscopes. He observed various forms of bacteria under the microscope which came from water in which pepper was soaked and scrapping of his teeth. The person who discovered the presence of cells was [[Robert Hooke->Robert Hooke]].

It wasn't Peter Smith, who first discovered the presence of cells. The correct answer is [[Robert Hooke->Robert Hooke]].

The cell structure comprises individual components with specific functions essential to carry out life's processes. What is the supportive cover that protects the cell while also allowing the movement of substance in and out of the cell? [[a) Cell Membrane->It is cell membrane]] [[b) Cell Wall->It is not the cell wall]]

The cell membrane supports and protects the cell. It controls the movement of substances in and out of the cells. It separates the cell from the external environment. The cell membrane is present in all the cells. By structure, it is a porous membrane (with pores) which permit the movement of selective substances in and out of the cell. Besides this, the cell membrane also protects the cellular component from damage and leakage. The cell-membrane encompases a thick, clear, jelly like susbtance, which is called: [[a) cytoplasm->Correct Answer: Cytoplasm]] [[b) cell juice->Wrong: It's the Cytoplasm]]

The protective layer around the cell that allows for movement of substance is the [[cell membrane->The Cell Membrane]]. //Trivia//:The cell wall is a rigid and tough structure that protect the cell membrane from damage. It is exclusively found in plant cells.

The cytoplasm is a thick, clear, jelly-like substance present inside the cell membrane. Most of the chemical reactions within a cell take place in this cytoplasm. Identify component A: <img src=https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQIy4Yp_pHBu0Dj3horCRK6e1XPEshu-254QVDZonkcDfUtT-1vvU99StyUlJ9V5JVahjU&usqp=CAU> a) [[Nucleus->It is the Nucleus]] b) [[Mitochondira->The Mitochondira]] c) [[Chromosomes->Chromosomes]] d) [[Endoplasmic reticulum->Endoplasmic reticulum]] e) [[Chloroplast->Chloroplast]] f) [[Vacuoles->Vacuoles]]

The thick liquid the is present inside the cell membrane is called [[the cytoplasm.->the cytoplasm]]

The Nucleus is made up of differnt components, which can be seen in the diagram below: <img src=https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSBIT6ppkbPlf25aLxHs78hUjlwHUd9RVMSkw&usqp=CAU> //Trivia//: 1. The nucleolus is the site of ribosome synthesis. Also, it is involved in controlling cellular activities and cellular reproduction 2. The nuclear membrane protects the nucleus by forming a boundary between the nucleus and other cell organelles. 3. A nuclear pore is a part of a large complex of proteins, known as a nuclear pore complex that spans the nuclear envelope. 4. A chromosome is a long DNA molecule with part or all of the genetic material of an organism. The cell also has other interesting components such as the mitochondira, which is referred to as the: a) [[Powerhouse of the cell->Powerhouse]] b) [[Power station of the cell->Powerhouse]]

Component A from the diagram is [[the nucleus->The Nucleus]]. //Trivia//: The mitochondrion is called the powerhouse of the cell. It is called so because it produces ATP - the cell's energy currency. <img src=https://www.aplustopper.com/wp-content/uploads/2016/10/Structure-of-a-Generalized-Cell-1.png>

Component A from the diagram is [[the nucleus->The Nucleus]]. //Trivia//: Chromosomes play a crucial role in determining the sex of an organism. <img src=https://www.aplustopper.com/wp-content/uploads/2016/10/Structure-of-a-Generalized-Cell-1.png>

Component A from the diagram is [[the nucleus->The Nucleus]]. The endoplasmic reticulum is involved in the transportation of substances throughout the cell. It plays a primary role in the metabolism of carbohydrates, synthesis of lipids, steroids and proteins. <img src=https://www.aplustopper.com/wp-content/uploads/2016/10/Structure-of-a-Generalized-Cell-1.png>

Component A from the diagram is [[the nucleus->The Nucleus]]. Chloroplasts are the primary organelles for photosynthesis. It contains the pigment chlorophyll (Specifically found in plant cells). <img src=https://cdn1.byjus.com/wp-content/uploads/2017/10/Plant-Cell-min-1.png>

Component A from the diagram is [[the nucleus->The Nucleus]]. //Trivia//: Vacuoles stores food, water, and other waste materials in the cell <img src=https://www.aplustopper.com/wp-content/uploads/2016/10/Structure-of-a-Generalized-Cell-1.png>

The mitochondrion is called the powerhouse of the cell. It is called so because it produces ATP - the cell's energy currency. <img src=https://www.aplustopper.com/wp-content/uploads/2016/10/Structure-of-a-Generalized-Cell-1.png> Hi Laura and Team, you guys get a gist of how the script can grow and organically include facts and trivia. While also including a choice-based learning tree.