Which has the greater concentration of hydrogen ions, a substance with a pH of 5 or a substance with a pH of 4?
A) A pH of 4 is greater.
B) A pH of 5 is greater.
C) They are both equal; 4 and 5 are relative values.
D) pH 9, if you mixed the solutions.
E) There is not enough information to determine the answer.
A
You might also like to view...
The term gray matter refers to
a. the part of the cerebral cortex which contains neuronal cell bodies and glia. b. the nerve connection between the two hemispheres of the brain. c. part of the brain affected by Alzheimer's disease and showing signs of senescence. d. fiber tracts carrying information between the spinal cord and the brain. e. none of these.
What are the main antigen-presenting cells in the body?
A. Macrophages B. Helper T cells C. Neutrophils D. Fibroblasts E. Plasma cells
Describe the overall composition of bone tissue.
A.Bone matrix consists of cells which give the bone its strength and calcium which provides it with flexibility. B. Bones consist primarily of cells joined together by dense connective tissue called periosteum. C. Bone consists of bone cells and matrix. The bones cells create the matrix, which is constantly being maintained and replaced.
Which of the following is not a part of the lymphatic system?
A. lymphatic vessels B. erythrocytes C. lymph nodes D. lymph