what skin condition is characterized by red itchy and inflamed patches
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TEAS 7 practice test free science

1. Which skin condition is characterized by red, itchy, and inflamed patches?

Correct answer: A

Rationale: Eczema is a skin condition characterized by red, itchy, and inflamed patches. It is a common condition that can vary in severity and often presents with symptoms such as dry, scaly skin, and sometimes oozing or crusting. Psoriasis, on the other hand, presents with red, scaly patches but is not typically described as itchy. Melanoma is a type of skin cancer characterized by the development of abnormal moles, while keloid is a type of raised scar that can occur after an injury to the skin. Therefore, the correct answer is eczema due to its specific symptom presentation of red, itchy, and inflamed patches.

2. Which of the following functional groups is present in carboxylic acids?

Correct answer: C

Rationale: Carboxylic acids contain the carboxyl functional group, which consists of a carbonyl group (C=O) and a hydroxyl group (-OH) attached to the same carbon atom. The carboxyl group is represented as -COOH in the molecular structure of carboxylic acids. Therefore, the correct functional group present in carboxylic acids is the carboxyl group, making option C the correct choice. Option A, 'Carbonyl,' is incorrect as it only refers to the C=O group without the -OH component present in carboxylic acids. Option B, 'Hydroxyl,' is incorrect as it only represents the -OH group without the carbonyl group. Option D, 'Aldehyde,' is incorrect as it refers to a different functional group with a carbonyl group attached to a hydrogen atom, not the carboxyl group found in carboxylic acids.

3. What is the name for the process by which a cell divides into two daughter cells?

Correct answer: B

Rationale: Mitosis is the correct process by which a cell divides into two genetically identical daughter cells. Meiosis involves two rounds of cell division resulting in four daughter cells with half the number of chromosomes as the parent cell. Fission refers to the division of a single-celled organism into two separate organisms, while binary fission specifically describes the division of prokaryotic cells. Therefore, the correct answer is Mitosis as it accurately represents the process of a cell dividing into two daughter cells.

4. Which class of hormones is most likely to be released after a serious injury?

Correct answer: D

Rationale: Endorphins are the class of hormones most likely to be released after a serious injury. Endorphins are the body's natural pain relievers and are produced in response to stress or pain, helping to alleviate discomfort and promote a sense of well-being. Acetylcholine is a neurotransmitter, not a hormone. Oxytocin is mainly involved in childbirth and lactation. Luteinizing hormone is involved in reproductive functions such as ovulation. Therefore, choices A, B, and C are incorrect in the context of a hormone release following a serious injury.

5. In which of the following materials would the author be most likely to include this passage?

Correct answer: A

Rationale: A history textbook is the most appropriate place for the passage about George Washington because it provides historical context, factual information, and analysis of significant events related to his life and contributions. The passage discusses Washington's role in the American Revolution, his leadership during the Revolutionary War, his decision to step down after the war, his farewell address, and his views on governance and foreign affairs. This type of detailed historical content is commonly found in history textbooks. Choices B, C, and D are incorrect because an obituary focuses on a person's death and life achievements in a brief manner, a fictional story is based on imagination and creativity, and a newspaper editorial typically presents opinions on current events or issues rather than historical accounts.

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