When does an ovum finish meiosis?
While in a secondary follicle
While in a primary follicle
During fertilization
During implantation
The Correct Answer is C
A. While in a secondary follicle: The ovum completes meiosis only after fertilization, not while in a secondary follicle.
B. While in a primary follicle: The ovum is arrested in prophase I of meiosis while in a primary follicle. Meiosis is not completed until fertilization.
C. During fertilization: The ovum completes meiosis II during fertilization, which is when the second meiotic division is completed.
D. During implantation: Meiosis is not completed during implantation. It is completed at fertilization.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Trypsin functions in the small intestine, where the environment is slightly alkaline. Therefore, this enzyme does not function at a low pH.
B. Pancreatic amylase also functions in the small intestine, where the pH is neutral to slightly alkaline.
C. Pepsin functions in the stomach, where the environment is highly acidic (pH 1.5 to 2). Pepsin is the correct answer because it works optimally at this low pH.
D. Salivary amylase functions in the mouth, where the pH is neutral or slightly alkaline.
Correct Answer is D
Explanation
A. Oral cavity is involved in chemical digestion through the action of salivary enzymes like amylase.
B. Stomach is involved in chemical digestion with gastric acids and pepsin.
C. Small intestine is a major site for chemical digestion and nutrient absorption.
D. Large intestine is primarily involved in the absorption of water and electrolytes and the formation of feces. It is less involved in chemical digestion compared to the other organs listed.
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