ATI TEAS 7
Chemistry
1. What is the common name for the compound CH₃COOH?
- A. Acetic acid
- B. Formic acid
- C. Butyric acid
- D. Propionic acid
Correct answer: A
Rationale: CH₃COOH is commonly known as acetic acid. The other choices represent different organic acids.
2. Which sentence uses the comparative degree of an adjective correctly?
- A. This movie is good, but the other one is better.
- B. She is the tallest player on the team.
- C. He worked hardest than everyone else.
- D. My coffee is hotter than yours.
Correct answer: A
Rationale: Option A uses "better" to compare the quality of two movies.
3. What type of energy is stored in food?
- A. Mechanical energy
- B. Kinetic energy
- C. Chemical potential energy
- D. Thermal energy
Correct answer: c
Rationale: Food stores energy in the form of chemical potential energy, which can be released during metabolic processes.
4. What property of a substance remains constant regardless of changes in its location in the universe?
- A. Mass
- B. Weight
- C. Density
- D. Volume
Correct answer: a
Rationale: Mass is an intrinsic property of matter and remains constant regardless of its location.
5. In the sentence "The house was dilapidated," what effect does the word "dilapidated" have on the reader's understanding?
- A. Creates a sense of mystery.
- B. Emphasizes the large size of the house.
- C. Suggests the house is in poor condition.
- D. Implies the house is haunted.
Correct answer: C
Rationale: The word "dilapidated" specifically describes the house's deteriorating state.
6. Where are most of the body's immune cells located?
- A. Blood
- B. Brain
- C. Skin
- D. Large intestine
Correct answer: A
Rationale: Rationale: - The majority of the body's immune cells are located in the blood. Immune cells, such as white blood cells (leukocytes), circulate throughout the body via the bloodstream to detect and fight off infections and foreign invaders. - While immune cells are also present in other parts of the body like the lymph nodes, spleen, and bone marrow, the blood serves as a primary conduit for immune cells to travel to different tissues and organs to carry out their functions. - The brain (option B) is protected by the blood-brain barrier, which limits the entry of immune cells into the brain to prevent inflammation and damage. - The skin (option C) contains immune cells like Langerhans cells that help protect against pathogens, but the largest concentration of immune cells is found in the blood. - The large intestine (option D) also houses a significant amount of immune cells due to its role in interacting with the external environment through
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