Concept explainers
Introduction:
Blood is a fluid connective tissue that circulates in the body to meet its nutritive and physiological needs. It comprises plasma and formed elements. Formed elements comprise various cellular and cellular fragments that are generated by the process of hematopoiesis, whereas the plasma mainly comprises water and plasma proteins.
Answer to Problem 1CYR
Correct answer:
The mast cell is not a formed element of the blood.
Explanation of Solution
Explanation for the correct answer:
Option (c) states that mast cell is not a formed element of the blood. A mast cell is a type of basophil (white blood cell) that differentiatesbetween tissues to perform its functions. Mast cells are the immune regulators of the body that secrete chemical substances to fight various infections and participate in allergic reactions. Hence, option (c) is correct.
Explanation for the incorrect answers:
Option (a) states that erythrocyte is not a formed element. Erythrocytes are suspended in the plasma of the blood. These are the red blood cells and area type of a formed element of the blood. So, it is an incorrect option.
Option (b) states that leukocyte is not a formed element. Leukocytes are white blood cells suspended in blood plasma and are a formed element of the blood. So, it is an incorrect option.
Option (d) states that platelet is not a formed element. Platelets are cell fragments found in blood and are a formed element of the blood. So, it is an incorrect option.
Hence, options (a), (b), and (d) are incorrect.
Therefore, it can be concluded that mast cells are not formed elements of the blood. They help in fighting against the infection.
Want to see more full solutions like this?
Chapter 19 Solutions
Human Anatomy & Physiology (2nd Edition)
- Every tutor here has got this wrong, don't copy off them.arrow_forwardSuppose that the population from question #1 (data is in table below) is experiencing inbreeding depression (F=.25) (and no longer experiencing natural selection). Calculate the new expected genotype frequencies (f) in this population after one round of inbreeding. Please round to 3 decimal places. Genotype Adh Adh Number of Flies 595 Adh Adh 310 Adhs Adhs 95 Total 1000 fladh Adh- flAdn Adh fAdhs Adharrow_forwardWhich of the following best describes why it is difficult to develop antiviral drugs? Explain why. A. antiviral drugs are very difficult to develop andhave no side effects B. viruses are difficult to target because they usethe host cell’s enzymes and ribosomes tometabolize and replicate C. viruses are too small to be targeted by drugs D. viral infections usually clear up on their ownwith no problemsarrow_forward
- This question has 3 parts (A, B, & C), and is under the subject of Nutrition. Thank you!arrow_forwardThey got this question wrong the 2 previous times I uploaded it here, please make sure it's correvct this time.arrow_forwardThis question has multiple parts (A, B & C), and under the subject of Nutrition. Thank you!arrow_forward
- Calculate the CFU/ml of a urine sample if 138 E. coli colonies were counted on a Nutrient Agar Plate when0.5 mls were plated on the NA plate from a 10-9 dilution tube. You must highlight and express your answerin scientific notatioarrow_forwardDon't copy off the other answer if there is anyarrow_forwardAnswerarrow_forward
- HAND DRAW There should be two proarrow_forwardMolecular Biology Question. Please help solve. Thanks. Please draw how two nucleotide triphosphates are linked together to form a dinucleotide, and label the 5' and 3' ends of the resulting dinucleotide.arrow_forwardWhat is a reversion in molecular biology?arrow_forward
Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage Learning
Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning