« previous next »

Author Question: An antigen is usually a _____. a. carbohydrate c. sugar b. protein d. amino ... (Read 134 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Jul 21, 2018
An antigen is usually a _____.
 
  a. carbohydrate c. sugar
  b. protein d. amino acid

Question 2

Which of these is a protection against pathogenic invasion?
 
  a. low pH c. mucus films
  b. surfactant proteins in lungs d. all answers


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 21, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

jessicacav

  • Hero Member
  • *****
  • Posts: 558
Reply #2 on: Jul 21, 2018
Both answers were spot on, thank you once again


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jul 21, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

General structure of an amino acid General structure of an amino acid
CAM Plant Sugar Synthesis CAM Plant Sugar Synthesis
An agglutination reaction. Antigen-coated latex beads are held together by antibody. In a direct ... An agglutination reaction. Antigen-coated latex beads are held together by antibody. In a direct ...
Eggs are an excellent source of protein, but egg yolks are high in cholesterol Eggs are an excellent source of protein, but egg yolks are high in cholesterol
Exogenous Antigen Processing Exogenous Antigen Processing
Chemical structures and designations of the 20 amino acids Chemical structures and designations of the 20 amino acids
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library