ATI TEAS science practice questions exam

In which of the following areas does protein breakdown begin in the human body? A. Mouth B. Stomach C. Small intestine D. Large intestine - B. The stomach The stomach is the first place in the digestive system in which proteinases are produced. Which of the following cell types is responsible for the production of soluble antibodies? A. Cytotoxic T cell B. Macrophage cell C. Helper T cell D. B cell - D. B cell The production of antibodies by B cells is part of the humoral response to antigens. Which of the following organ systems is responsible for transporting nutrients, water, and other substances throughout the human body? A. Respiratory B. Immune C. Nervous D. Circulatory - D. Circulatory The heart pumping blood through the arteries, capillaries, and veins provides the means of transporting substances throughout the body. Which of the following is characteristic of the human organism? A. Autotrophic with a genome stored in DNA B. Heterotrophic with a genome stored in DNA C. Autotrophic with a genome stored in RNA D. Heterotrophic with a genome stored in RNA - B. Heterotrophic with a genome stored in DNA Humans consume rather than manufacture nutrient molecules (heterotrophic) and human genes are encoded in DNA. Which of the following is the function of the lymph nodes in mammals