ATI TEAS Exam QUESTIONS AND ANSWERS | GRADED A

ATI TEAS Exam QUESTIONS AND ANSWERS | GRADED A Respiratory System Correct Answer: Oxygen/carbon dioxide exchange (Lungs, trachea, larynx, nasal cavities, and pharynx) Breakdown of which of the following begins in the small intestine? A. Fats B. Fiber C. Proteins D. Carbohydrates Correct Answer: A. Fats Which of the following is the tube that carries both sperm and urine for release outside the body? A. Ureter B. Urethra C. Vans deferens D. Epididymis Correct Answer: B. Urethra Which of the following is the region of the kidney that contains the glomerulus of the nephron? A. Medulla B. Pelvis C. Cortex D. Adrenal Correct Answer: C. Cortex Which of the following anti-body-secreting cells is triggered to proliferate upon vaccination? A. Erythrocytes B. B-lymphocytes C. Leukocytes D. T-lymphocytes Correct Answer: B. B-lymphocytes Which of the following produces ammonia by deamination in the liver? A. Proteins B. Carbohydrates C. Nucleic acids D. Lipids Correct Answer: A. Proteins A cross between two heterozygous F1 plants produces a ratio of 15:1 in the F2 offspring. Which of the following best describes the ratio? A. Modified monohybrid ratio B. Modified dihybrid ratio C. Normal monohybrid ratio D. Normal dihybrid ratio Correct Answer: B. Modified dihybrid ratio The normal dihybrid ratio is 9:3:3:1, so this isi a modified dihybrid ratio. The monohybrid ratio is 3:1. Which of the following best describes matter in which the components cannot be broken down into simpler substances? A. Molecule B. Element C. Mixture D. Compound Correct Answer: B. Element An element is a substance made of a single type of atoms that are generally held together by physical forces. Which of the following formulas best summarizes a simple replacement reaction? A. A+B= AB B. AB+C= AC+B C. AB+CD= AD+BC D. AB= A+B Correct Answer: B. AB+C= AC+B This is a single replacement reaction because element B is replaced by element C. Which of the following structures stores urine before excretion? A. Kidneys B. Ureters C. Bladder D. Urethra Correct Answer: C. Bladder Which of the following structures is an irregularly shaped bone? A. Femur B. Metacarpal C. Rib D. Vertebra Correct Answer: D. Vertebra Vertebrae are irregular bones. The femur is a long bone. Metacarpals are short bones. Ribs are flat bones. In which of the following stages of embroylogical development are the main germ layers (ectoderm, endoderm, and mesoderm) formed? A. Blastula B. Morula C. Gastrula D. Fetus Correct Answer: C. Gastrula During the gastrula stage, the germ layers are formed. During the blastula stage, the inner cell pmass and blastopore are formed. Embryogenesis is completed by the fetus stage. Which of the following nervous system directs the skeletal muscles to respond in the body's fight-or-flight response? A. Enteric B. Central C. Parasympathetic D. Sympathetic Correct Answer: D. Sympathetic The Sympathetic Nervous System activates the body;s fight-or-flight response. In the presence of stress, the heart beats faster and stronger, more blood is carried to the vital organs, and the pupils dilate to prepare the body to defend itself. The Enteric peripheral nervous system controls the digestive glands. The central nervous system typically produces reflex arcs and processes external stimuli. The parasympathetic nervous system promotes responses that are the opposite of the sympathetic nervous system, such as digestion and maintenance. Exchange of gases occurs in which of the following structures of the respiratory system? A. Alveoli B. Bronchioles C. Trachea D. Pleura Correct Answer: A. Alveoli The alveoli are the structures in the respiratory system in which the exchange of gases occurs. Although the bronchioles, trachea, and pleura are components of the respiratory system, they are not directly responsible for gas exchange. Integumentary System Correct Answer: Barrier to invading organisms and chemicals, temperature control (skin, hair, subcutaneous tissue) Skeletal System Correct Answer: Supports and moves body, protects internal organs, mineral storage, blood formation (bones, cartilage, ligaments, bone marrow) Muscular System Correct Answer: Locomotion and heat production (muscles and tendons) Nervous System Correct Answer: Coordinates activities of other organ systems and responds to sensations (brain, spinal cord, eyes, nerves, ears) Endocrine System Correct Answer: Regulates body functions by chemicals (hormones) --Pituitary gland, parathyroid gland, thyroid gland, adrenal gland, thymus, pancreas, gonads Cardiovascular System Correct Answer: Transports oxygen and nutrients to tissues and removes waste products (heart, blood, blood vessels) Lymphatic System Correct Answer: Returns tissue fluid to blood, defends against foreign organisms (Spleen, lymph nodes, thymus, lymphatic vessels)