Explanation: PE promotes the curvature of cell membrane. This is important in the budding and fusion of cell membranes during maturation.

Explanation: A cell is the smallest and most fundamental unit of life, responsible for all of life’s operations. All living beings have cells that serve as structural, functional, and biological units.

Explanation: The study of cell structure and function is known as cell biology, and it is based on the idea that the cell is the most basic unit of life. Concentrating on the cell allows for a more in-depth understanding of the tissues and organisms that cells make up.

Explanation: Cell junctions are used by cells to interact with each other in certain tissues. These are stable interactions made for the development and function of the cell.

Explanation: The cell junction is abundant in epithelial cells, which provide barrier and control over the transport in the cell. It is otherwise known as intercellular bridge, which is made up of multiprotein complexes.

Explanation: Epithelial mesenchymal transition is the property of cells losing adhesion and gaining migration. It is highly useful in the pluripotency of stem cells in organ development.

Explanation: Gap junctions are absent in all the cell that are motile. Gap junctions are also absent in erythrocytes. These motile cells do not have a necessity for the passage of molecules or ions.

Explanation: Smooth endoplasmic reticulum sequesters calcium ions within the cytoplasm of the cell and controlled release of Ca2+ from the SER of cardiac and skeletal muscle cells triggers contraction. Smooth endoplasmic reticulum (SER) in the aforementioned cells is known as sarcoplasmic reticulum.

Explanation: Neutrophils and macrophages are the phagocytic cells that ingest potentially dangerous microbes; the microbes are then inactivated by the low pH of lysosomes present in these cells followed by their enzymatic digestion.

Explanation: The mitochondria, also known as the “powerhouse of the cell,” are the organelles that produce energy within the cell. The mitochondria are the major site for ATP generation and play a significant role in cellular respiration.

Explanation: The digesting enzymes are found in lysosomes. When lysosomes rupture, digestive enzymes are released, which begin digesting the body’s own cells. That’s why they’re referred to as suicidal bags.

Explanation: They are produced by the Golgi body. The fusion of vesicles from the Golgi complex with endosomes produces lysosomes.

Explanation: The Golgi apparatus, also known as the Golgi complex, is a factory where proteins from the ER are further processed and sorted before being transported to their final destinations: secretion, lysosomes, or the plasma membrane.

Explanation: Plant cells require a cell wall, but animal cells do not, as plants require a stiff framework in order to grow up and out. Cell membranes are present in all cells and are flexible. Plant cells only have the shapes of their cell walls, but animal cells can have a variety of shapes.

Explanation: Dr. George Emil Palade, a Nobel Laureate, is known as the “Father of Cell Biology” for his pioneering work in the subject. He was a pioneer in the use of the electron microscope, which he used to discover ribosomes and secretory protein activity.

Explanation: DNA contains the blueprints for all of the proteins in our bodies, neatly packed in a double helix. Transcription and translation are the processes that turn DNA into proteins, and they take place in distinct parts of the cell. The first step, transcription, takes place in the nucleus, which is where the DNA is stored.

Explanation: Nucleus is absent in prokaryotic cells. Instead, they have a nucleoid region in the cell.

Explanation: Viruses aren’t made up of cells. Their genetic material is protected by a protein covering (either DNA or RNA). However, they lack a cell membrane and other organelles seen in cells.

Explanation: Theodor Schwann proposed the classical cell hypothesis. This hypothesis is divided into three parts. All organisms are made up of cells, according to the first section. Cells are the basic units of life, according to the second portion. These sections were based on a conclusion reached by Schwann and Matthias Schleiden. Rudolf Virchow declared Omnis cellula e cellula, claiming that cells come from preexisting cells that had multiplied.