ATI TEAS 7
Biology
1. What are chromosomes made of?
- A. DNA and RNA
- B. DNA and proteins
- C. Proteins and carbohydrates
- D. DNA only
Correct answer: B
Rationale: Rationale: Chromosomes are structures found in the nucleus of cells that contain genetic material. They are made up of DNA (deoxyribonucleic acid), which carries the genetic information, and proteins that help in the organization and packaging of the DNA. While RNA is involved in various cellular processes, it is not a major component of chromosomes. Carbohydrates are not a significant component of chromosomes. Therefore, the most accurate answer is B) DNA and proteins.
2. What is the involuntary muscle tissue found in the walls of blood vessels and organs like the stomach and intestines?
- A. Skeletal muscle
- B. Cardiac muscle
- C. Smooth muscle
- D. Striated muscle
Correct answer: C
Rationale: The correct answer is C: Smooth muscle. Smooth muscle is the involuntary muscle tissue that is found in the walls of blood vessels and organs like the stomach and intestines. Unlike skeletal muscle, which is voluntary and under conscious control, smooth muscle functions involuntarily, allowing organs to contract and relax without conscious effort. Cardiac muscle, while also involuntary, is specifically found in the heart. Striated muscle refers to both skeletal and cardiac muscle, which exhibit a striped appearance under a microscope due to the arrangement of their filaments. Therefore, smooth muscle is the most appropriate answer for this question.
3. The deeper layer of the skin, containing connective tissue, blood vessels, and nerve endings, is called the:
- A. Epidermis
- B. Dermis
- C. Hypodermis
- D. Stratum corneum
Correct answer: B
Rationale: The correct answer is B: Dermis. The dermis is the deeper layer of the skin that contains important structures such as connective tissue, blood vessels, and nerve endings. It plays a crucial role in providing support and nourishment to the epidermis, the outermost layer of the skin. The epidermis, option A, is actually the outermost layer responsible for protecting the body from environmental factors. The hypodermis, option C, is the deepest layer of the skin that primarily consists of fat and connective tissue. Stratum corneum, option D, is the outermost layer of the epidermis composed of dead skin cells. Therefore, the dermis is the correct answer in this case.
4. Which orbital can hold a maximum of 8 electrons?
- A. s orbital
- B. p orbital
- C. d orbital
- D. f orbital
Correct answer: C
Rationale: d orbital - Each d orbital can hold a maximum of 2 electrons, and there are 5 d orbitals, totaling 10 possible electrons.
5. When writing dialogue, remember to:
- A. Avoid contractions and informal language for realism.
- B. Use formal vocabulary to sound sophisticated.
- C. Create realistic speech patterns reflecting the characters' personalities.
- D. Focus on descriptive narrative over character interactions.
Correct answer: C
Rationale: Effective dialogue captures the characters' unique voices and personalities through realistic speech patterns and word choices.
6. Which of the following guidelines should be least considered in formulating objectives for
- A. Written nursing care plan
- B. Holistic approach
- C. Prescribed standards
- D. Staff preferences
Correct answer: D
Rationale: When formulating objectives for a written nursing care plan, staff preferences should be least considered. Objectives should be based on patient needs, evidence-based practice, and professional standards rather than personal preferences of the staff. Prescribed standards ensure quality care and adherence to best practices. A holistic approach considers the whole patient, including physical, emotional, and spiritual aspects. Staff preferences may introduce bias and should not dictate patient care objectives.
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