Practice Science TEAS Test

Correct Answer: B

Rationale: The correct answer is B: Malaria. Malaria is caused by a protozoan parasite called Plasmodium, which is transmitted through the bite of infected mosquitoes. Protozoan parasites are single-celled organisms that can cause various infectious diseases in humans. Measles (A), mumps (C), and mononucleosis (D) are caused by viruses, not protozoan parasites. Viruses are different from protozoa in terms of structure, replication, and mode of infection. Therefore, the correct choice is B as it aligns with the characteristic of being caused by a protozoan parasite.

Correct Answer: A

Rationale: The correct answer is A: Abdominal. The peritoneum primarily lines the abdominal cavity, providing a protective and lubricating membrane for the abdominal organs. The peritoneum does not line the dorsal (B), ventral (C), or thoracic (D) cavities. The dorsal cavity is lined by the meninges, the ventral cavity is lined by serous membranes, and the thoracic cavity is lined by the pleura. Therefore, the peritoneum specifically lines the abdominal cavity, making choice A the correct answer.

Correct Answer: B

Rationale: The correct answer is B: Serotonin. Serotonin is associated with feelings of happiness and well-being because it helps regulate mood, emotions, and sleep. Low levels of serotonin have been linked to depression and anxiety. Dopamine (A) is associated with pleasure and reward, GABA (C) is an inhibitory neurotransmitter that helps reduce anxiety, and Acetylcholine (D) is involved in muscle movement and memory. Serotonin is the most relevant neurotransmitter for happiness and well-being due to its specific role in regulating mood and emotions.

Correct Answer: B

Rationale: The correct answer is B: Glycolysis. Glycolysis is the process where glucose is broken down into pyruvic acid through a series of enzymatic reactions in the cytoplasm. This process involves multiple steps including phosphorylation, isomerization, cleavage, and oxidation. Glycogenesis (choice A) is the synthesis of glycogen from glucose, not the breakdown. Glycogenolysis (choice C) is the breakdown of glycogen into glucose, not the conversion of glucose to pyruvic acid. Gluconeogenesis (choice D) is the synthesis of glucose from non-carbohydrate precursors, not the conversion of glucose to pyruvic acid.

Correct Answer: B

Rationale: The correct answer is B: Cerebrum. The cerebrum is responsible for voluntary muscle movements as it houses the motor cortex, which controls voluntary movements. The medulla oblongata (A) controls involuntary functions like breathing and heart rate. The hypothalamus (C) regulates body temperature, hunger, and thirst. The thalamus (D) serves as a relay station for sensory information. Therefore, the cerebrum is the correct choice for voluntary muscle movements.