The innate immune system consists of?

Denaturation of proteins will result in all

EXCEPT one of the following. Which one is it?

a. breakage of hydrogen bonds b. loss of three dimensional structure c. removal of R groups from amino acids d. alteration of enzyme activity e. endangerment of cell's life

Which of the following statements is (are)

true?

a. Modified Agrobacterium tumefaciens is used to deliver recombinant DNA into some plants. b. Agrobacterium tumefaciens infects many plants including potatoes, peas, and beans. c. Agrobacterium tumefaciens is used to improve the nutritional value of some food plants. d. Soybean, squash, and potatoes can be modified by using Agrobacterium tumefaciens. e. All of these are true

Which of the following BEST defines diffusion?

a) net movement of particles from areas of high concentration to ears of low concentration b) net movement of particles from areas of low concentration to areas of high concentration c) net movement of particles between cells d) net movement of particles from a cell into the extracellular matrix e) net movement of fluids from the environment into and out of an organism

Archaea differ from bacteria in that archaea

A) have diverse cell wall compositions. B) lack nuclei. C) use organic compounds for food. D) reproduce by binary fission. E) are prokaryotic.