An advantage of the blood–brain barrier is that it keeps out most ______. A disadvantage is that it also keeps out _____. a. viruses . . . most nutrients b. small molecules . . . fat-soluble molecules c. harmful gases . . . oxygen d. waste products . . . water

Q: Hypertrophy, hyperplasia and increases in extracellular material are forms of    A. growth  B.…

A: The answer is A  Growth Hyperplasia refers to the process where cells in an organ or tissue increase…

Q: Plasma is the ________. a. fibers in blood b. matrix of blood c. cell that phagocytizes bacteria d.…

A: Blood and lymph are the two fluid connective tissues. Both of these flow through our cardiovascular…

Q: Which of the following is not excitable or have the capacity to generate electrical signals? Select…

A: D. Skin cell

Q: A experiment in which cancer cells were injected into the vein leading to the liver demonstrated:…

A: Cancer that spreads from where it started to a distant part of the body is called metastatic cancer

Q: Researchers have developed mouse models for autism. In an experiment, they introduced Bacteroides…

A: Introduction :-  Autism is a developmental disability. It can cause significant social,…

Q: Which of the following diseases is due to a malfunction of a transport system? Beriberi OA B.…

A: Within the body, many molecules are able to pass across the membranes that surround cells. These…

Q: Which organ system does what? Match the system to its job in the body. (match each letter to the…

A: The biological level of the organization is a hierarchy in which the living things are arranged from…

Q: The most widely distributed second messenger in cells is a. G protein b. adenyll cyclase c. cAMP…

A: Many cell signaling pathways involve extracellular ligands binding to cell surface receptors, which…

Q: 26. A person with a low white blood cell count would have difficulty. a. Blood clotting b. Breathing…

A: 1. White blood cells comprise neutrophils, basophils, eosinophils, monocytes and lymphocytes. White…

Q: Antacids such as Zantac, help to prevent hearturn, by blocking histamine receptors. This results in…

A: Antacids are commonly used to neutralize the acids in the stomach, used to treat the symptoms like…

Q: Which of the following describe(s) a characteristic or function of hemoglobin? a. Hemoglobin…

A: The hemeoglobin  group is comprised of a central iron atom complexed to four nitrogen atoms. Oxygen…

Q: A stroke results froma. hemorrhage in the brain.b. a blockage of a blood vessel in the brain.c. a…

A: Option D is correct i.e. hemorrhage in the brain and a blockage of a blood vessel in the brain.

Q: 5. Why can excessive changes in the level of carbon dioxide in the blood be harmful to an animal?…

A: Carbon dioxide is a waste product of metabolism that is created intracellularly in the human body.…

Q: You start a new job in a research lab. The lab protocols state that you should check your hands for…

A: The correct answer is (d) all of the above

Q: 49. Which of the following membrane proteins allows messaging molecules (from cells located some…

A: Membrane proteins are proteins that are found in biological membranes that interact with them.…

Q: Haemoglobin... A. Consists of one or more globin proteins, each with a copper-containing heme group…

A: Hemoglobin is a protein found in red blood cells that is responsible for transporting oxygen from…

Q: increased red blood cell destruction in the body will lead to increased ___ levels in the body.…

A: Blood is a fluid connective tissue composed of red blood cells (RBC), white blood cells (WBC),…

Q: Myoglobin ...   A. has higher affinity for O2 than hemoglobin does.   B. consists of four…

A: Myoglobin is an iron-containing protein that functions as the oxygen-binding protein just like…

Q: Some patients with hypertension (high blood pressure) are given beta-blocking drugs to lower their…

A: Beta-blockers, also known as beta-adrenergic blocking inhibitors, are blood pressure-lowering drugs.…

Q: Patients with a history of heart failure may take a medication that keeps calcium in the cells…

A: Heart failure can be described as the condition in which the heart fails to pump the blood properly…

Q: Select the CORRECT statement: Selected a Electrical excitability (the ability to generate action…

A: The question is about identifying the correct option. There are three main statements regarding the…

Q: The respiratory system ________. a. provides body tissues with oxygen b. provides body tissues with…

A: During aerobic respiration, oxygen is utilized by the organisms to oxidise respiratory substrates…

Q: The protein spectrin found in the cortex of red blood cells functions as ______________. Select one:…

A:

Q: Which of the following are derived from cholesterol? A. ceramide B. ganglioside C. prostaglandin D.…

A: Cholesterol is a very important molecule for a number of reasons. All steroid hormones are formed…

Q: * Proteinuria caused by a. Albumin infiltration b. Multiple myeloma c. Glucosuria d. Not all of the…

A: Multiple myeloma is a malignancy that develops in the plasma cells of white blood cells. By…

Q: Redness, heat, swelling, and pain are hallmarks of what bodily process ?  A. Inflammation  B.…

A: The WBC or white blood cells are responsible for giving protection to the body against any foreign…

Q: T cells are often discussed in conjunction with the disease AIDS, in which a virus destroys these…

A: T Cells : T cells are part of the immune system and develop from stem cells in the bone marrow. They…

Q: In the body Central chemo receptors ______ a. are mostly in the aortic arch b. Detect oxygen…

A: Central chemo receptors are found in ventral surface of the medulla .Detect the level of H+ ion in…

Q: In the medical field, we encounter multiple medical emergencies on a daily basis. After reading…

A: Note : Hi. Since you have asked many questions we will solve first question for you if you want…

Q: Which internal factor must be monitored and adjusted to maintain homeostasis? a. blood pressure b.…

A: The different parts of the body function in a systemic manner and each part influence the function…

Q: Blood flows in one direction through the heart as it contains valves that prevent backflow. This…

A: Blood flows in one direction through the heart because of the presence of valves which prevent the…

Q: Which of the following are examples of maintaining homeostasis (more than one answer may be…

A: The idea of homeostasis, or the body's capacity to maintain constant internal conditions regardless…

Q: Recently, athletes have begun to take advantage of the benefits of extra red blood cells, in a…

A: Introduction: A hematocrit is a straightforward blood test that measures the proportion of red blood…

Q: 38. All blood cells are produced in the A. red bone marrow. B. yellow bone marrow. C. white bone…

A: Introduction  In humans and many animals, Blood is a fluid connective tissue. The heart pumps blood…

Q: The majority of oxygen in the blood is transported by ________. a. dissolution in the blood b. being…

A: The exchange of gases, i.e., oxygen and carbon-dioxide, occurs from lungs in a human body to the…

Q: In the blood, oxygen quickly binds with hemoglobin. What is hemoglobin? a. Protein in red blood…

A: Haemoglobin: It is a protein in the red blood cells which carries the oxygen to your body organs and…

Q: which of the following cell types contain ATP- dependent K+ channels and voltage-gated Ca++ channels…

A: Voltage-gated calcium channels, otherwise called voltage-dependent calcium channels, are a gathering…

Q: What is that component of cigarettes that will compete in binding of RBC hemoglobin-and-Oxygen…

A: Both active and passive smoking affects the health in a negative manner. The different effects of…

Q: Oxygen in our blood is transported by a protein named: A. haemoglobin B. keratin C.…

A: Oxygen is an essential chemical element, which helps to burn sugar and fatty acid and provide energy…