ATI Teas 6 – Science Exam Questions with Complete Solutions

ATI Teas 6 – Science Exam Questions with Complete Solutions Cytoskeleton - movement - ANS: Which of the following pairs correctly matches a cellular organelle with its function? A. Golgi apparatus- protein synthesis B. Smooth endoplasmic reticulum- energy production C. Cytoskeleton - movement D. Cell membrane- storage The ribs are lateral to the sternum. - ANS: Which of the following describes an anatomical relationship between two structures in the human body? A. The mouth is anterior to the nose. B. The ribs are lateral to the sternum. C. The patella is inferior to the tibia. D. Muscles are superficial to skin. Bone marrow - ANS: Which of these organs is directly involved in synthesis of red blood cells in an adult? A. Liver B. Spleen C. Bone marrow D. Lymph nodes Blood becoming more alkaline - ANS: At the end of a sprint, a runner breathes hard because the medulla oblongata senses which of the following? A. Low oxygen levels in the blood B. Low carbon dioxide levels in the blood C. Blood becoming more alkaline D. Blood becoming more acidic Reduction in residual volume of the lung - ANS: Which of the following situations would result in increased oxygen diffusion from alveoli into blood? A. Increase in perfusion and decrease in ventilation B. Increase in oxygen concentration of blood C. Reduction in alveolar surface area D. Reduction in residual volume of the lung A. Walking pneumonia - 5 Mycoplasmic infection B. Cystic Fibrosis - 3 Gene Mutation C. Influenza - 1 Coronavirus D. Tuberculosis - 2 Mycobacterium E. Mycosis - 4 Fungus - ANS: Match the following respiratory system effects to their most probable cause. A. Walking pneumonia 1. Coronavirus B. Cystic Fibrosis 2. Mycobacterium C. Influenza 3. Gene Mutation D. Tuberculosis 4. Fungus E. Mycosis 5. Mycoplasmic infection Generation of electrical impulses - ANS: Which of the following describes a property of cardiac cells? A. Generation of electrical impulses B. Production of red blood cells C. Immune protection functions D. Removal of waste products from the body Antibodies - ANS: Which of the following blood component levels would be expected to increase following vaccination? A. Red blood cells B. Antibodies C. Dissolved gasses D. Leukocytes A. The sinoatrial node is present in the top section of the right atrium. - ANS: Which of the following statements regarding the circulatory system is correct? A. The sinoatrial node is present in the top section of the right atrium. B. Veins returning to the heart carry deoxygenated blood. C. The heart's "lub-dub" sound is caused by electrical impulse generation. D. The heart's atria have thicker walls than the ventricles. Peristalsis rate increases. - ANS: Which of the following physiological responses follows eating a large meal? A. Pulse rate increases. B. Peristalsis rate increases. C. Enzyme production decreases. D. Parasympathetic nervous activity decreases. The liver filters digestion products and produces urea as waste. - ANS: Which of the following describes why liver failure is a critical health emergency? A. The liver produces the majority of digestive enzymes. B. Food is filtered through the liver before digestion takes place. C. The liver helps digested food products to be pumped around the body. D. The liver filters digestion products and produces urea as waste. Salivary amylase - ANS: Carbohydrate-digesting enzyme produced by salivary glands Pepsinogen - ANS: Zymogen form of protease produced by the stomach Parietal cells - ANS: Cells that produce acid in the stomach Pyloric sphincter - ANS: Valve through which chyme passes from stomach to duodenum Gastrin - ANS: Hormone produced by stomach that induces stomach secretion. Cholecystokinin - ANS: Hormone that induces bile and pancreatic juice secertion. Jejunum - ANS: Second section of small intestine where majority of absorption occurs. Hepatic portal vein - ANS: Blood vessel that carries nutrients directly from small intestine to liver. Water - ANS: Substance mainly absorbed from waste in large intestine. Rectum - ANS: Region of large intestine in which feces is stored before elimination. Heart Beating - ANS: Which of the following actions is controlled by the autonomic nervous system? A. Walking B. Chewing C. Heart Beating D. Talking Chemical - ANS: Which of the following processes best describes how a signal travels across a nerve synapse? A. Electrical B. Kinetic C. Potential D. Chemical Protein - ANS: What is the primary component of muscles? A. Fat B. Protein C. Carbohydrates D. Nucleic Acid Testes - ANS: Which of the following organs produces sperm?