This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following correctly describes a normal mature erythrocyte? a. A 7- to 8-mm biconcave ... (Read 55 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jun 25, 2018
Which of the following correctly describes a normal mature erythrocyte?
 
  a. A 7- to 8-mm biconcave disc that lives 120 days
  b. A 7- to 8-mm spheroid that lives 120 days
  c. A 12- to 15-mm spheroid that lives 80 days
  d. A 12- to 15-mm biconcave disc that lives 80 days

Question 2

When compared with mature erythrocytes, reticulocytes:
 
  a. Are larger and bluer on Wright stain from remnant ribonucleic acid (RNA)
  b. Are larger and have more vacuoles on Wright stain from remnant deoxyribonucleic acid (DNA)
  c. Stain pinker with new methylene blue
  d. Still have a nucleus


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

canderson530

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: A
A normal mature red cell has a diameter of 7 to 8 mm, is biconcave, and lives 120 days in circulation.

Answer to Question 2

ANS: A
Reticulocytes still contain some RNA, as well as mitochondria and other organelles; these stain with the basic component of Wright stain and so lend some blueness to the cytoplasmic color. They are also slightly larger in both diameter and volume than a mature red cell. New methylene blue is a vital stain used to precipitate residual RNA in these cells so that they can be enumerated. The precipitated material, called reticulum, stains blue with new methylene blue. Reticulocytes no longer have a nucleus; they are the first stage of development after extrusion of the nucleus.


mspears3

  • Member
  • Posts: 586
Reply 2 on: Jun 25, 2018
Thanks for the timely response, appreciate it

ttt030911

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Tonsils—normal and enlarged. Tonsils—normal and enlarged.
Normal conduction pathway in the heart. Normal conduction pathway in the heart.
(A) Tetralogy of Fallot; (B) normal anatomy. (A) Tetralogy of Fallot; (B) normal anatomy.
The thymus, a primary lymphoid organ where T cells mature. The thymus, a primary lymphoid organ where T cells mature.
How to find the tangential and normal components of a vector How to find the tangential and normal components of a vector
Normal tympanic membrane with cone of light and process of malleus Normal tympanic membrane with cone of light and process of malleus
Video: Embryonic development - Week 4

For a complete list of videos, visit our video library