ATI TEAS 7
Biology
1. What is the difference between mitosis and meiosis?
- A. Mitosis produces haploid cells, while meiosis produces diploid cells
- B. Mitosis involves crossing over, while meiosis does not.
- C. Mitosis results in four daughter cells, while meiosis results in two
- D. Mitosis is responsible for sexual reproduction, while meiosis is responsible for asexual reproduction.
Correct answer: C
Rationale: Rationale: - Mitosis is a type of cell division that results in two identical daughter cells with the same number of chromosomes as the parent cell. Therefore, mitosis results in two daughter cells. - Meiosis is a type of cell division that results in four daughter cells, each with half the number of chromosomes as the parent cell. This reduction in chromosome number is essential for sexual reproduction. - Option A is incorrect because mitosis produces diploid cells (cells with the same number of chromosomes as the parent cell), while meiosis produces haploid cells (cells with half the number of chromosomes as the parent cell). - Option B is incorrect because crossing over, the exchange of genetic material between homologous chromosomes, occurs during meiosis and not during mitosis. - Option D is incorrect because mitosis is not responsible for sexual reproduction; it is a process of asexual reproduction and
2. What is the relationship between the wavelength (λ) and frequency (f) of a wave with a constant speed (v)?
- A. λ = v / f
- B. λ = f / v
- C. λ = vf
- D. λ is independent of f and v
Correct answer: A
Rationale: The relationship between wavelength (λ), frequency (f), and speed (v) of a wave is given by the formula λ = v / f. This formula is derived from the wave equation v = fλ, where v is the speed of the wave, f is the frequency, and λ is the wavelength. By rearranging the equation, we get λ = v / f, indicating that the wavelength is inversely proportional to the frequency when the speed of the wave is constant.
3. hich word is most closely associated with the adjective "meticulous"?
- A. careless
- B. precise
- C. indifferent
- D. enthusiastic
Correct answer: B
Rationale: "Meticulous" implies carefulness and attention to detail, making "precise" its closest synonym.
4. What is the muscular sac in the female body that nourishes and protects a developing fetus?
- A. Ovary
- B. Fallopian tube
- C. Uterus
- D. Vagina
Correct answer: C
Rationale: The correct answer is C: Uterus. The uterus is a muscular sac in the female body where a fertilized egg implants and develops into a fetus during pregnancy. It provides nourishment to the developing fetus and protects it throughout gestation. The ovaries produce eggs, the fallopian tubes transport eggs from the ovaries to the uterus, and the vagina is the canal leading from the uterus to the outside of the body. Therefore, the uterus is the specific organ responsible for nourishing and protecting a developing fetus in the female body.
5. Which digestive enzyme is primarily responsible for breaking down proteins?
- A. Pepsin
- B. Lipase
- C. Amylase
- D. Maltase
Correct answer: A
Rationale: The correct answer is A: Pepsin. Pepsin is primarily responsible for breaking down proteins in the stomach. It is an enzyme produced by the gastric chief cells in the stomach lining and works in a highly acidic environment to break down proteins into smaller peptide fragments. Lipase, on the other hand, is responsible for breaking down fats, amylase for breaking down carbohydrates, and maltase for breaking down maltose (a type of sugar). Therefore, pepsin is the correct enzyme involved in the digestion of proteins.
6. Identify the interrogative sentence in the following options:
- A. The delicious pie disappeared quickly.
- B. What is your favorite color?
- C. Please open the window.
- D. He ran as fast as he could.
Correct answer: B
Rationale: An interrogative sentence asks a question and typically ends with a question mark.
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