The process of attaching complement proteins to the bacterial cell wall to enhance phagocytosis is called _________.
A. optimization
B. MAC attachment
C. complement activation
D. opsonization
Answer: B. MAC attachment
You might also like to view...
Each amino acid differs from another in the
A) number of central carbon atoms. B) size of the amino group. C) number of carboxyl groups. D) nature of the side chain. E) number of peptide bonds in the molecule.
Answer the following statements true (T) or false (F)
1. Covalent bonds are generally less stable than ionic bonds. 2. Hydrogen bonds are comparatively strong bonds. 3. The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds. 4. Alpha particles, although relatively weak energy particles, are second only to smoking as a cause of lung cancer. 5. No chemical bonding occurs between the components of a mixture.
The promoter sequence of nucleotides in a gene is present on both strands of the DNA molecule, allowing transcription of both strands
Indicate whether the statement is true or false.
Which of the following statements regarding homeostasis is false?
A. If the body detects a change and works to make the levels move even farther away from homeostasis, that is positive feedback. B. Homeostasis is the body's ability to overcome an imbalanced internal environment. This is achieved using positive and negative feedback mechanisms. C. Homeostasis is the body's ability to maintain a steady internal environment. This is achieved using positive and negative feedback mechanisms. D. If the body detects a change beyond its normal homeostasis range (either too high or too low) and it works to reach its homeostasis range by reversing the direction of movement, that is positive feedback.