ATI TEAS 7
Chemistry
1. What is the functional group present in aldehydes?
- A. Hydroxyl
- B. Carbonyl
- C. Ester
- D. Amine
Correct answer: B
Rationale: Aldehydes have the functional group -CHO, which is a carbonyl group bonded to a hydrogen atom. The other choices are associated with different functional groups.
2. What is the scientific study of the relationships between organisms and their environment?
- A. Zoology
- B. Botany
- C. Ecology
- D. Genetics
Correct answer: C
Rationale: Rationale: A) Zoology is the scientific study of animals. B) Botany is the scientific study of plants. C) Ecology is the scientific study of the relationships between organisms and their environment, including the interactions between living organisms and their physical surroundings. D) Genetics is the scientific study of genes, heredity, and variation in living organisms, which is not directly related to the relationships between organisms and their environment.
3. A solution is considered saturated when...
- A. More solute can be dissolved
- B. The solvent starts to evaporate
- C. The solution becomes cloudy
- D. It reaches a specific temperature
Correct answer: B
Rationale: The correct answer is B: 'The solvent starts to evaporate.' A solution is considered saturated when the solvent can no longer dissolve any more solute at a given temperature. When the solvent starts to evaporate, it means that the solution is becoming more concentrated and reaching its saturation point. This is a key indicator of a saturated solution. The other options do not accurately describe the concept of a saturated solution, making them incorrect choices.
4. Two objects with different masses collide. What happens to their momentum after the collision?
- A. Increases for both objects
- B. Decreases for both objects
- C. Remains the same for both objects
- D. Can increase for one and decrease for the other
Correct answer: C
Rationale: In an isolated system (no external forces), the total momentum
5. Which word completes the sentence: "Despite the storm, the concert ____ went on."
- A. nevertheless
- B. however
- C. therefore
- D. nonetheless
Correct answer: D
Rationale: "Nonetheless" emphasizes the continuation of the concert despite the contrary circumstance.
6. Which type of epithelial tissue lines the inner lining of your intestines, responsible for absorption?
- A. Stratified squamous
- B. Simple columnar
- C. Stratified cuboidal
- D. Transitional epithelium
Correct answer: B
Rationale: The correct answer is B: Simple columnar. Simple columnar epithelial tissue is well-suited for absorption because of its single layer of tall, column-shaped cells with microvilli on the surface, increasing surface area for absorption. This type of tissue is found in the inner lining of the intestines where absorption of nutrients occurs. Stratified squamous epithelium is more protective and found in areas subject to wear and tear, like the skin. Stratified cuboidal and transitional epithelium are not typically involved in absorption processes. Therefore, simple columnar epithelial tissue is the most appropriate choice for lining the inner surface of the intestines for absorption.
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