Which proteins fuse adjacent cells together to form relatively impermeable barriers? A) Connexins B) Claudins C) Occludins D) Cadherins Both B and C

Q: 14) this is the serine protein kinase that when activated in a MPF complex that results in…

A: The cell cycle consists of the G1 phase, S phase, G2 phase, and mitotic phase, and is regulated by…

Q: Which of the following describes a cytokine that typically cause a leukocyte to undergo…

A: Leukocyte extravasation (additionally ordinarily known as leukocyte grip course or diapedesis – the…

Q: When T-cells and macrophages attack the myelin sheet covering nerves the disease that results is…

A: T-cell is a white blood cell that lives in our body, it fights viruses and helps us to get sick. The…

Q: 1. Which of the following is NOT part of the complement system? a) Antigen presenting cells b)…

A: Immunity refers to the ability of an organism to resist or defend against a specific pathogen or…

Q: The first cell type active in the innate response is usually a(n)       A) phagocyte.…

A: The innate immune system is the first line of defence in the body.

Q: Fat-soluble signaling molecules cross the cell membrane; but they affect only the target cells…

A: Answer: FAT SOLUBLE MOLECULES are those molecules which cannot be stored within a cell , they prefer…

Q: 7. Which cell type is primarily responsible for HIV's transport to the brain? A) T cells B)…

A: HIV, or the human immunodeficiency virus, is a virus that targets CD4 cells, a subset of T cells,…

Q: B

A: Antibody binding of antigens represents a critical part of the adaptive immune system’s ability to…

Q: Use the following choices for the next set of questions. A choice may be used zero or more times:…

A: In molecular biology, CD4 is a glycoprotein that acts as a co-receptor for the T-cell receptor.…

Q: A type 1 functional response curve would best represent A) barnacles.  B) moose. C) humans. D)…

A: A function response is that field of ecology which deals with the study of rate of intake of food of…

Q: What type of cells secrete antibodies? A) Cytotoxic T cells B) Helper T cells C) B cells…

A: Antibodies are  glycosylated protein molecules, also known as immunoglobulin. Antibodies are antigen…

Q: 33) During maturation, B cells expand their endoplasmic reticulum. What is the function of this?" A)…

A: What is the role of the endoplasmic reticulum (ER)? ER is a single membrane folded structure linked…

Q: Which of the following is not considered a "first line of defense" against pathogens? a) lysozyme b)…

A: All the options are considered as the first line of defense against pathogens .…

Q: Which of the following is one of the family of immunoglobin like proteins that mediate Ca+2?a)…

A: Cell surface adhesion molecules are primarily involved in the transmission of information from…

Q: Which one is not non-specific immune response?  a) antibady, b) phagocytosis, c) interferons, d)…

A: Pathogen or foreign particles are disease causing agents which when enter inside the body and cause…

Q: Which cells are more efficient at obtaining nutrients? a) Small Cells b) Medium Size Cells c) Large…

A: A typical human body contains almost 15 trillion cells. The nutrients are necessary for these cells…

Q: 4.Which of the following terms includes all the others? a) Karyokinesis b) Cytokinesis c) Cell Cycle…

A: The cell is defined as the basic structural and functional unit of an organism. It is the building…

Q: Which is NOT a common type of HAI?   Question 11 options:   a)  Covid-19   b)  pneumonia (lower…

A: Microbiology is the study of small microorganisms that cannot be seen by the naked eye. I can only…

Q: An immunizatin reduces the chance that you will catch a severecase of disease because the…

A: Immunization is the process of developing immunity against the particular pathogen by the…

Q: Natural killer cells target: A) O cells that possess abundant MHC I self antigens on their surface

A: The natural killer cell is an important cell of an innate immune system. They are larger granular…

Q: Superantigensa) are exceptionally large antigen molecules.b) cause a very large antibody response.c)…

A: Super antigens can activate up to 20% of the body's total T-cells concentration.

Q: 1. What phagocytic cells utilize in their membrane to identify phagocytic objects? A) Opsonin…

A: Introduction  Phagocytosis is a process by which certain cells in the body, called phagocytes,…

Q: C-reactive protein interacts with A) factor D B) C1 C) factor P D) C4 E ) C2

A: Complement system includes components which are made up of proteins or glycoproteins. These are…

Q: Which of the following happens during inflammation? A) O The capillaries supplying blood to the area…

A: Immunity is the body's defense system that protects the body from the invasion of harmful particles…

Q: What type of molecules are antigens? A.) proteins B.) carbohydrates C.) lipids D.) RNA E.) all of…

A: Antigen is a foreign substance which on entering the host body stimulates the immune response. This…

Q: What would be the most likely effect of a tissue producing too much of a morphogen? A) Tissue…

A: A morphogen is a signaling molecule that plays a major role in pattern formation or morphogenesis…

Q: Which of the following best describes the sequence variation within class | MHC molecules? A)…

A: MHC stands for Major Histocompatibility Complex molecules. They are a type of cell surface proteins.…

Q: If someone receives a blood transfusion or organ transplant, their body will notice the donor cells'…

A: Human blood has four major blood groups as "O, A, B, and AB", which is also known as the ABO blood…

Q: During gap junction formation, connexons in neighboring cells become tightly connected through…

A: The question is asking about the specific part of the connexin protein that is involved in the…

Q: What is the one cell type that does the most to coordinate and control the adaptive immune response?

A: The immune system's adaptive immune system, sometimes referred to as the acquired immune system, is…

Q: iCQ5) viruses are able to by using the enzyme integrase. a) Lysogenic; Release from the cell without…

A: An infectious bacterium called a virus is made up of a protein-coated fragment of nucleotides.

Q: 1. NSF is an enzyme that uses the energy of ATP hydrolysis to disassemble complexes between v-SNAREs…

A: When the two separated lipid bilayers fuse to form a single layer, this process is known as Membrane…

Q: 3)  Name each of these cells.

A: B lymphocytes - They provide antibody-mediated immunity. Antibodies kill pathogen through…

Q: Bio-sensor is a device consisting of immobilized layer of biological material such as_______.a)…

A: Science is a term which is used for the study of the subject which is based on the facts and…

Q: ___________ are employed to kill the infectious germs and cure a disease.a) Antigens b) Antibiotics…

A: Germs are the living organisms that cause diseases in humans and other living beings.