The study of the structural features and functions of the cell is A. surface ana

Question

The study of the structural features and functions of the cell is A. surface anatomy B. microbiology. C. histology. D. molecular biology. E. cytology. The minimum amount of energy that reactants have to start a chemical reaction is called A. kinetic energy B. activation energy C. electromagnetic energy D. mechanical energy E. potential energy. The sacroiliac joint is between the A, alveolar process and tooth. B. sacrum and coxa. C. two pubic bones. D. atlas and axis. E. two parietal bones. Which cells of the epidermis are part of the immune system? A. keratinocytes B. melanocytes C. Merkel's cells D. Langerhan's cells E. fibroblasts Type AB blood A. has no antigens on the red cells. B. has both A and B antibodies on the red cells. C. has O antigens on the red cells. D. has both A and B antigens on the red cells. E. has both A and B antibodies in the plasma.

Explanation / Answer

38) option E. "Cyto" = cell "logos " = cell

39) option B. Activation energy takes reactants from their ground state to activated state .

40) option B. The sacroiliac joint is between the sacrum and the ilium

41) option A. Keratinocytes are cells containing keratin. It's a dead cell layer which is cornified and resistant to infestation by microbes.

42 ) option D. AB blood group is positive for antigens of both A and B types on the red cells and the corresponding antibodies in blood.

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