1. large particles including aggregates of macromolecules are ingested by some cells through phagocytosis?(true or false) 2. receptor-mediated endocytosis  begins with binding of specific molecules to their receptors on the outersurface of the plasmamembrane (true or false)

Q: What are antigen-presenting cells?

A: Introduction :- A heterogeneous collection of immune cells called antigen-presenting cells (APCs)…

Q: The GC content of Micrococcus is 66 - 75% and of Staphylococcus is 30-40 % moles, from this…

A: Introduction  A genus of Gram-positive bacteria belonging to the Staphylococcaceae family of the…

Q: If the energy received by 5 m² area in 330 seconds is 4100KJ. Find the value of Solar constant ?

A: Solar constant The solar constant is used to define the rate of electromagentuc radiations from the…

Q: I want information about the experience of the effect of salinity on wheat germination?

A: Introduction Salinity refers to the salt concentration in the water. Salinity is the major factor…

Q: 1. Tissue culture is the general term for the removal of cells, tissues, or organs from an animal or…

A: Introduction : Tissue culture is the growth of tissues or cells separate from the organism. This is…

Q: If a person needs to undergo dialysis, can he still do normal activities such as working and…

A: Dialysis Kidney olay an important role in the filteration and excretion of wastes. When kidneys stop…

Q: o discuss the contribution of wings in insect's diversity and abundance.

A: The arthropods group includes insects. The largest group of arthropods is the one that includes…

Q: Describe the advantage nad disadvantages of the arthropod exoskeleton.

A: Arthropods are invertebrate creatures with segmental bodies, hinged limbs, bilateral symmetry, and a…

Q: Glomerular colloid osmotic pressure is greater in the afferent end than in the efferent end of the…

A: Blood colloidal osmotic pressure (BCOP) is due to colloidal nature of blood. The blood is a mixture…

Q: What role does the synaptonemal complex play? How is this complex different from cohesins?

A: Mitosis and meiosis are the two different ways that cells divide. When people talk about "cell…

Q: Pick a specific animal that exists today and research its ancestor from millions of years ago. How…

A: Answer :- Crocodylians are the last living delegates of the crocodylomorpha, a to be sure more…

Q: features

A: Gametogenesis is defined as the process of formation of gametes from the precursor cells . These…

Q: What is the function of the heart? Explain.

A: Heart is the main organ of the circulatory system. In vertebrates, it is located on the ventral side…

Q: Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the…

A: Enthalpy and entropy are combined to form the Gibbs free energy. The combination of the system's…

Q: Why do certain drugs become immunogenic to the host?

A: Introduction :- Immunogenicity, which is defined as a cell or tissue's capacity to elicit an immune…

Q: Define the difference in the term species for a eukaryotic organism, a prokaryotic cell and a virus.…

A: A species is a group of organisms that can interbreed and produce fertile offspring. The term is…

Q: Which of the following is NOT a reason why middle-income countries in the east have experienced…

A: Middle-income countries in the east have huge technological developments.

Q: A small region of the brain found above and in front of the medulla oblongata that serves as a relay…

A: First question: The brain is divided into three main regions - forebrain, midbrain and hindbrain.…

Q: 11. Name the type of culture which is prepared by inoculating directly from the tissue of an…

A: The culture is a procedure that provides a favorable condition to the the organism for…

Q: Which of the following statements are TRUE about the phospholipid bilayer? Select all that apply.…

A: Fluid mosaic model of plasma membrane was given by Singer and Nicolsan. It explains the structure of…

Q: A girl and a boy were born to a young married couple. The girl is absolutely healthy. The…

A: Humans have a total of 46 chromosomes in the nucleus. The 44 chromosomes are autosomal chromosomes…

Q: Aleconners were appointed to Brew beer Test the quality of the beer Collect taxes from beer sales…

A: Ale is a beer that is brewed by fast fermentation with a quick acting yeast called Sachharomyces…

Q: Which of the following molecules will likely cross a cell membrane through simple diffusion estrogen…

A: Cell membrane, over all, is made up of hydrophobic and nonpolar parts. So only those substances will…

Q: 1. Trypsin-mediated enzymatic disaggregation of tissues is known as-▬▬▬▬.

A: Enzymatic disaggregation help to  process tissue samples when a high recovery of cells is necessary.

Q: Describe what happens to nucleosomes during DNA replication?

A: Two sticks of DNA are twisted around one another to form a double helix. Replication is the process…

Q: The b6-f complex (ETS) in the thylakoid membrane acts to O split water into O, e* and H+. O energize…

A: Electron transport chain is located in the inner mitochondrial membrane. It helps in releasing and…

Q: what is gel electrophoresis

A: Question : What is Gel electrophoresis,?

Q: Protein production takes place O in the cytoplasm. O in the nucleolus. O outside the cell. O in the…

A: Proteins are made up of amino acids . When these amino acids are join together in a chain via…

Q: Describe the factors that may affect the identification of an infectious agent from a patient…

A: Microbes are generally termed to state that they are living things that cannot be seen with the…

Q: f hGH

A: When you have too much growth hormone, your bones increase in size. In childhood, this leads to…

Q: 5. come from the outgrowth of migrating cells from a piece of tissue that is disaggregated by…

A: The answer is "true".

Q: Assign the terms below to the simplistic scenario: you put sugar (or coffee) in the water to make…

A: Here, a condition is given like - we put sugar (or coffee) in the water to make sweet water (or…

Q: Why is mercury (Hg) poisonous to humans? What does it do once it gets in our bodies?

A: Mercury (Hg) is poisonous to humans And once it gets into our bodies is;-

Q: Why must a person floating on the surface of the water and breathing through a snorkel increase…

A: Tidal volume Tidal volume is defined as the amount of air delivered to the lung during the…

Q: Matching

A: Matching explanation: A) Water pollution: B) Monoculture:  This is a type of agriculture, growing…

Q: Glycolysis involves all of these steps EXCEPT creating ATP. the breaking of glucose. O production of…

A: Glycolysis is the process by which glucose breaks down and forms pyruvic acid which is gone through…

Q: What are antimicrobial peptides?

A: Introduction Short strands of amino acids connected by peptide bonds are called peptides.…

Q: T T T F F F During the three subphases, the cell grows by producing proteins and cytoplasmic…

A: As per our guidelines we are not allowed to answer more than three ture and false at a time please…

Q: Which is a ductless gland that secretes hormones directly into the bloodstream? Oan exocrine gland O…

A: The physiological activities are regulated by different mechanism in our body. The endocrine system…

Q: Describe what is the function of the anticodon of a tRNA?

A: The biological instruction manual known as DNA, sometimes called deoxyribonucleic acid, provides…

Q: 2- Oh, no! One of your dishes of mammalian cells has bacterial contamination! What is the most…

A: Introduction: Every person who works with cell culture dreads biological contamination. The majority…

Q: Explain the role of heat shock proteins in ectotherm physiology.

A: Heat Shock proteins form the base of a cell's proteo-protection system. Genes that are activated by…

Q: The insects have two distinct types of development. The more primitive insect orders pass through a…

A: Metamorphosis Metamorphosis is defined as the changes that occur in insects or amphibians leading to…

Q: How many bases would a mRNA have? if it was coded for a protein of 250 amino acids long? explain…

A: The flow of genetic information in a biological system is explained by central dogma and it involves…

Q: The methods of attachment of skeletal muscle to bone by the following aponeurosis ligament. tendon…

A: A dense fibrous connective tissue band with a high tensile strength known as a tendon or sinew…

Q: DNA Extraction Using household materials Wash the fruit. Place the fruit (e.g. banana) in a zip…

A: The molecular biology applications involve protein and nucleic acid isolations. The process involves…

Q: What is the end result of DNA replication?

A: The molecule that contains the genetic information that distinguishes each individual is called DNA,…

Q: how does reproduction and chromosome transmission relate to each other?

A: Reproduction is a biological process by which organisms produce her offsprings similar to itself and…

Q: Determine the reason as to why humans have evolved to mount an immune response to their own fetuses…

A: Erythroblastosis fetalis, often known as "hemolytic sickness of the baby," is an alloimmune…

Q: Of the four major types of microscopes, give an example of a scenario in which each would be the…

A: Electron microscopy is a tool that allows us to see tiny images of objects that would otherwise be…

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.