What are the functions of fimbriae (pili) and sex pili?

Q: A cnidocyst is : a) a spicule b) an organelle c) a centriole d) a parasite

A: Cnidarians are creatures that live in seas. These include hydras, corals, jellyfishes, and sea…

Q: Which of the following is not a locomotive organelle of protozoans? a)Pili b)Flagella c)cilia…

A: Protozoans are the unicellular eukaryotes that can either live as a parasite or free-living. Ameba,…

Q: What is the function of Sertoli cell barrier?

A: Tight junction between Sertoli cells that function to secrete androgen binding protein and inhibin…

Q: What is role of macula densa cells?

A: Nephrons are structural and functional units of kidneys.  Nephrons consist of malphigian corpuscles…

Q: What is role of macula densa cells?

A: As we know Nephrons are structural and functional units of kidneys of the body. Also, Nephrons…

Q: What are plasmodesmata?

A: Plasmodesmeta are microscopic channels which traverse the cell wall of plant cell and some algall…

Q: what are ciliates?

A: Cilia are the minute, hair like projections found in surfaces of some cells which beat in rhythmic…

Q: Distinguish between the flagella of prokaryotes and eukaryotes.

A: The flagellum found in bacteria is a helical-shaped structure made of the flagellin protein. The…

Q: How does the contractile vacuole help the paramecium survive in a fresh water environment?

A: It is a cilliate protozoan that is covered externally by cilia. Paramecium consists of permanent…

Q: What is the Function of Microlia Cells?

A: Microglia are a type of macrophage found throughout the central nervous system (brain and spinal…

Q: What is meant by the terms pit, primary pit-fields, and plasmodesmata?

A: The understanding of basic botanical terms is important for the academic point of view as well as…

Q: Explain how are flagella synthesized?

A: Flagella are long, whip-like structures that extend from the surface of some cells and are used for…

Q: What is the function of osphradium in mollusca?

A: The sensory system of phylum molluscs includes photoreceptor eyes, tactile tentacles and statocyst…

Q: How do ciliates move and eat?

A: Ciliates are protozoan members coming under the phylum Ciliophora. They are characterized by the…

Q: What is the nature of cell wall in diatoms?

A: Diatoms are a photosynthetic, single-celled organism which means they manufacture their own food in…

Q: Are flagella found in the male body, female body, or both?

A: A flagellum is a tail-like appendage that projects from the cell body of some bacterial and…

Q: What are characteristics of Ciliata?

A: Protists are the marine, multicellular or unicellular organism that belong to a separate kingdom…

Q: Is it possible to create a permanent disequilibrium between extracellular and intracellular…

A: The fluid system that includes all fluids enclosed inside the cell by the plasma membrane is…

Q: What is the importance of cell mosaicity?

A: The cell mosaic model describes the cell membrane as a tapestry of several types of molecules…

Q: What are the types of flagella?

A: Microorganisms are those organisms that cannot be seen by naked eyes. Bacteria are microorganism…

Q: Why do ciliates have two types of nuclei?

A: A group of protozoan which is characterized by the presence of organelle cilia is called ciliates.…

Q: How big are invisible webs, and what are they made of?

A: Invisible webs, typically referred to as "spider silk," can vary in size depending on the species of…

Q: What are the respective roles of microtubules and actin filaments in cytokinesis?

A: Cytokinesis is the process of cytoplasmic division that takes place shortly after the separated…

Q: What are somatotrophs?

A: The pituitary gland or hypophysis is a pea-sized gland found at the base of the brain. It is…

Q: What is a ciliate organism?

A: The organism is defined as the any individual entity that embodies the properties of life. It is…

Q: From a functional standpoint, how does the flagellum ofeukaryotic cells differ from that of…

A: The lash like appendages of bacteria that protrudes out of the cell body is called flagella.  The…

Q: What is the uncontrolled mitotic process that occurs as disease in pluricellular beings called?

A: The uncontrolled division of mitotic cells is called neoplasia. Neoplasia (the formation of new…

Q: Where are trypanosomes found?

A: The disease is a condition or illness or sickness of the living animal or plant body or of one of…

Q: What are the pros and cons of being multicellular and unicellular?

A: Introduction The cell is the basic structural and functional unit of life. It carries out various…

Q: Do prokaryotes have a central vacuole?

A: Prokaryotes are the single celled microscopic organisms that do not possess a distinct nucleus or…

Q: Where do we find fimbriae?

A: As I understand the question about fimbriae. please mention the kind. For clarification of question…

Q: How does Moore's Law impact the development and evolution of microchips?

A: Moore's Law, which posits that the number of transistors on a microchip doubles approximately every…

Q: Define the term conidia.

A: The word ‘fungus’ is derived from Latin meaning ‘mushroom’. The study of fungi is called mycology.…

Q: How does a Ciliate move?

A: Protozoans are the single-celled eukaryotic organisms. They are free-living or parasitic, and feed…

Q: How do fimbriae differ from pili, both structurally andfunctionally?

A: In bacterial cell, there are three components i.e. structures external to cell wall, the cell wall…

Q: What is the function of fimbriae?

A: The fimbriae are present in both human females and in bacteria. In both cases, they perform…

Q: Describe the structure of a flagellum. How do flagella generate cell motility?

A: Prokaryotes are single-celled microscopic organisms belongs to domain bacteria. A prokaryotic cell…

Genetic Recombination

Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.

Microbial Genetics

Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.