Which of the following is not true about phagocytosis?(a) It is a form of exocytosis.(b) It is energy dependent.(c) It only occurs in eukaryotes.(d) A larger cell engulfs a smaller cell that will eventually bepresent in an internal vacuole.(e) It requires fusion of internal lysosomes to engulfed vac-uole for contents to be digested

Q: Distinguish among phagocytosis, pinocytosis, receptor-mediated endocytosis, and exocytosis.

A: The cell membrane is thin, elastic, and has a flexible covering that holds the cellular contents. It…

Q: The transport of nutrients across a membrane against a concentration gradient using protein carriers…

A: Transport across the membranes: it occurs via either active transport which required direct energy…

Q: What is Memory cells?

A: The immune system has a vital role in protecting the body from outside pathogens (bacteria, viruses,…

Q: Peroxisomes and the smooth endoplasmic reticulum are both associated with detoxification of harmful…

A: It is a physiological removal of toxic substances from a living organism,  which is carried out by…

Q: Why doesn’t the cell “clean up” the faulty lysosomes?

A: Lysosome is membrane bound organelle which encloses enzyme responsible for the breakdown of complex…

Q: A bacterium engulfed by a white blood cell through phagocytosis will be digested by enzymes…

A: Cell is the basic structural and functional unit of life.

Q: Which type of cell? Relative % normally?

A: Introduction In vertebrates, the innate, or nonspecific, immune system is one of two basic immunity…

Q: What is Adhesion ?

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: Describe the phenomenon of pyroptosis. How does it differ from apoptosis and necrosis?

A: Introduction :- The process of programmed cell death is known as apoptosis. It is utilised to…

Q: apoptosis

A: Apoptosis Apoptosis is  a cell death which is done in a programmed manner. It is triggered by…

Q: Explain briefly phagocytosis and endocytosis, mention an example of human cells that use…

A: Phagocytosis Phagocytosis, or “cell eating”, is the process by which a cell engulfs a particle and…

Q: Why are the activities in the lysosome best partitioned awayfrom the cytoplasm proper?

A: A cell is the basic structural and functional key of life. A cell has multiple organelles that carry…

Q: 11. Phagocytosis, pinocytosis, and receptor-mediated endocytosis all involve C the export of…

A: Introduction :- Pinocytosis is the process of live cells ingesting liquid droplets. Endocytosis is…

Q: Why must DNA replication occur before cytokinesis insomatic cell division?

A: Cells reproduce by a cycle of growing and dividing called a cell cycle. The cell cycle is the…

Q: During which phase does the size of the cell increase?

A: BASIC INFORMATION  ABOUT CELL GROWTH AND CELL DIVISION Growth and reproduction are the…

Q: How does cell death from apoptosis differ from cell death from necrosis?

A: Apoptosis is programmed cell death and necrosis is the premature cell death.

Q: Compare phagocytosis and pinocytosis.

A: A cell is a hub of metabolic activities. A cell can release or absorb numerous substances to bring…

Q: During phagocytosis, which action is associated with destruction? a. exocytosis b. adhesion c.…

A: Destroying of cell by breaking its cell membrane is known as phagocytosis

Q: what are the limitations of the cell in preventing cell injuries?

A: The cell is the basic unit of life. It is the structural and functional unit of life. All new cells…

Q: In the presence of low levels of GTP, microtubules inside a cell will undergo ------------- due to…

A: Microtubule: it is formed by polymerisation of two subunits i.e. alpha and beta-tubulin.

Q: Which of the cytoskeletal structures depicted provide resistance against mechanical stress (think…

A: The cytoskeleton is a structural component of all living organisms. It is formed by the interlinking…

Q: Describe what occurs in each step of the process ofphagocytosis.

A: The engulfing of food particle by an ameboid  cell is called as phagocytosis. There are four…

Q: Lina, a teenager, observed one morning as she looked at the mirror that her face has a new pimple.…

A: Cell theory, given by the scientists M. Schleiden and T. Schwan describes the cell's basic…

Q: Why isn’t transcytosis listed as a separate means of membrane transport, in addition to pinocytosis…

A: In cytology, transcytosis is defined as the transcellular mode of transportation of macro -molecules…

Q: How would the changes from the table above result in skeletal muscle cell protease and lipase…

A: Numerous signalling pathways and biological activities are under the control of intracellular…

Q: Can water, carbon dioxide, oxygen and calcium ion can move freely across the plasma membrane?

A: The plasma membrane or cell membrane is primarily composed of a lipid bilayer along with protein and…

Q: What are centrioles? In which type of cell are they present?

A: Centrioles are each of a pair of minute cylindrical organelles near the nucleus in animal cells,…

Q: How is receptor-mediated endocytosis different from phagocytosis?

A: The endocytosis of larger particles by binding them to the particular surface receptors is termed,…

Q: Can the extent of the reticulum change in different physiological settings? How?

A: The reticulum is a chamber in the alimentary canal of ruminant animals. The ruminant animals include…

Q: intracellular phagosomes

A: Intracellular refers to the inside of the cell. Osmosis, or the mechanism that maintains the amount…

Q: How does a cell balance exocyticand endocytic events to keep itsplasma membrane a constant size?

A: Each cell is surrounded by a single-layered plasma membrane that restricts the contents of the cell…

Q: Name the process by which hormones and digestive enzymes are released? A. Phagocytosis B.…

A: Hormones are the chemical messenger secreted by the endocrine glands of the body. They travel…

Q: Ion pumps and phagocytosis are both examples of what

A: Ion pump is a transmembrane protein that moves ions across a plasma membrane and phagocytosis is the…

Q: What are all is included for cell transport?

A: Cell transport is considered as the movement of material from inside the cell and outside the cell.…

Q: Apoptosis does not cause inflammation. Explain why?

A: The most common form of physiological death is the Apoptosis.It is a series of change in the cell…

Q: Which one ( phagocytosis, pinocytosis,receptor-mediated endocytosis) is the opposite of exocytosis?

A: Cytosis involves transport mechanism that aids in transport of various large quantities of…

Q: what structure does a bacterial cell produce to resist phagocytosis?

A: Bacteria are a kind of biological cell.They form a large part of prokaryotic microorganisms.They are…

Q: How are phagocytosis and pinocytosis similar? How are theydifferent?

A: The plasma membranes of the cells are selectively permeable to various biomolecules and ions. To…

Q: How does a cell maintain theright amount of every component(organelles, molecules), and how doesit…

A: Cell organelles and molecules are usually not randomly distributed , they are localized where they…

Q: Differentiate between phagocytosis and pinocytosis ?

A: Phagocytosis and pinocytosis are two types of endocytosis.The process which the cell uses to uptake…

Q: Description Phagocytosis Exocytosis Brings large substances into the cell Concentrates a specific…

A: In cell biology, Cytosis is defined as the transport of large quantity of molecules from or into the…

Q: How does receptor- mediated endocytosis differ from phagocytosis?

A: Introduction: Pathogens And Cell Detritus Are Removed Through Phagocytosis, Which Is A Significant…

Q: What will happen if the cells inside ypur body will stop drinking or eating substances?Are…

A: Food is a material made up mostly of protein, carbohydrate, fat, and other nutrients that is used in…

Q: Why is receptor-mediated endocytosis said to be moreselective than phagocytosis or pinocytosis?

A: Endocytosis is a cellular phenomenon that moves various substances such as fluid, proteins, cells,…

Q: What is the function of Permease?

A: Protein are macronutrients that are primary constituents of all living things. They are made up of…

Q: Define the  origin and action of lysosomes in phagocytosis.

A: Phagocytes are a type of white blood cell that ingests and occasionally digests foreign invaders in…

Q: What type of cell is primarily responsible for removing foreign or dead cells from our body?

A: Blood is chief connective tissue and is a part of circulatory system .  It consists of :-  I) Red…

Q: How does receptor- mediated endocytosis differ from phagocytosis?

A: Receptor- mediated Endocytosis - variation of endocytosis that involves the specific binding…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.