« previous next »

Author Question: An antigen is usually a _____. a. carbohydrate c. sugar b. protein d. amino ... (Read 135 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 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.

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?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
CAM Plant Sugar Synthesis CAM Plant Sugar Synthesis
Stereochemistry of the a-Amino Acids Stereochemistry of the a-Amino Acids
The initial phase of carbohydrate catabolism: glycolysis The initial phase of carbohydrate catabolism: glycolysis
Carbohydrate Metabolism Carbohydrate Metabolism
Protein Metabolism Protein Metabolism
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library