ATI TEAS 7
TEAS Practice Test Science Questions
Question 1 of 5
Which part of the neuron receives signals from other neurons?
Correct Answer: B
Rationale: The correct answer is B: Dendrite. Dendrites are the part of the neuron that receives signals from other neurons, allowing for communication between neurons. They contain receptors that bind to neurotransmitters released by neighboring neurons. The axon (A) is responsible for transmitting signals away from the cell body. The synapse (C) is the junction between two neurons where neurotransmitters are released. The myelin sheath (D) is a protective covering that insulates the axon and speeds up signal transmission but does not receive signals from other neurons.
Question 2 of 5
A botanist wants to determine if environmental temperature affects root growth. What is the independent variable in this study?
Correct Answer: A
Rationale: The independent variable is what the researcher manipulates to observe its effect on the dependent variable. In this study, the botanist is testing if temperature affects root growth. Therefore, the independent variable is temperature (choice A). The botanist will change the temperature levels to see how it influences root growth. Choices B, C, and D are not the independent variable as the botanist is not directly manipulating seedlings, light, or root length to study the effect on root growth.
Question 3 of 5
Which type of joint connects the bones of the skull?
Correct Answer: B
Rationale: The correct answer is B: Fibrous. Fibrous joints connect bones of the skull with fibrous tissue, providing stability and limited movement. Synovial joints (Choice A) have a joint cavity with synovial fluid for movement but aren't found in the skull. Cartilaginous joints (Choice C) connect bones with cartilage and allow slight movement, not commonly found in the skull. Ball-and-socket joints (Choice D) allow the widest range of motion and are not present in the skull. Therefore, the fibrous joint is the most suitable type for connecting the bones of the skull.
Question 4 of 5
Which of the following organelles is responsible for food and water storage in the cell?
Correct Answer: D
Rationale: The correct answer is D: Vacuole. Vacuoles are responsible for storing food, water, and other materials in the cell. They help maintain turgor pressure and regulate the cell's internal environment. Centrioles are involved in cell division, lysosomes contain digestive enzymes, and ribosomes are responsible for protein synthesis. So, A, B, and C are incorrect choices for food and water storage in the cell.
Question 5 of 5
What is the role of the pancreas in regulating blood sugar levels?
Correct Answer: B
Rationale: The pancreas produces insulin to lower blood sugar levels and glucagon to raise them. Insulin helps cells take in glucose for energy or storage. Glucagon signals the liver to release stored glucose. Storing glucose (option C) is not the primary function of the pancreas. Adrenaline (option D) is produced by the adrenal glands, not the pancreas.
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