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| Section | Weight | Objectives |
|---|---|---|
| Science | 36.8% | - Human Anatomy
|
| Verbal Ability | 35.6% | - Reading Comprehension
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| Mathematics | 27.6% | - Measurement
|
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NEW QUESTION # 102
Word Knowledge
The word"abundant"most nearly means:
Answer: B
Explanation:
"Abundant" means existing in large quantities or more than enough. Option B, "plentiful," is the closest synonym. Scarce and limited are opposites, and fragile refers to being easily broken. NEX word knowledge questions focus on synonyms used in common academic and healthcare contexts.
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NEW QUESTION # 103
The figure below represents the human eye.
Where are the rods and cones located?
Answer: C
Explanation:
Rods and cones are specialized photoreceptor cells responsible for vision. These cells are located in the retina, the innermost layer of the eye. The retina contains multiple layers of cells that convert light energy into electrical impulses, which are then transmitted to the brain through the optic nerve. Rods are highly sensitive to light and are essential for vision in dim conditions, while cones are responsible for color vision and sharp visual detail. The cornea and lens help focus light but do not detect it. The optic nerve transmits signals but does not contain photoreceptors. The NEX Science exam frequently tests eye anatomy and sensory physiology, especially the relationship between structure and function. Correctly identifying the retina as the location of rods and cones is essential for understanding how visual perception occurs.
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NEW QUESTION # 104
You are staining bacterial samples for identification and viewing them under a microscope.
Which bacterial shape do you observe in the sample?
Answer: D
Explanation:
This question tests knowledge of bacterial morphology, which is commonly assessed on the NEX Science exam. Bacteria are often classified based on their shape, which helps in identification and diagnosis. The image shows elongated, rod-shaped bacteria. This shape is characteristic ofbacilli. Bacilli are cylindrical or rod-like and are commonly found in many bacterial species, includingEscherichia coliandBacillus anthracis.
Cocci are spherical in shape, spirochetes are long and spiral-shaped, and vibrios have a curved, comma-like appearance. None of these shapes match the straight rod-like structures shown in the image. Identifying bacterial shape is an important first step in microbiology before further tests such as Gram staining or biochemical analysis are performed. The NEX exam frequently uses images or descriptions to assess whether students can correctly distinguish between cocci, bacilli, spirilla/spirochetes, and vibrios based on visual characteristics. Recognizing bacilli as rod-shaped bacteria is a key foundational concept.
NEW QUESTION # 105
Which fraction is equal to 0.04?
Answer: C
Explanation:
This question tests your ability to convert between decimals and fractions, a very common skill on the NEX Math Section. Start by understanding the decimal value. The decimal 0.04 means four hundredths, which can be written as the fraction 4/100. The next step is to simplify this fraction by dividing both the numerator and the denominator by their greatest common factor, which is 2. Doing so gives 2/50. That fraction exactly matches option C, making it the correct answer. To verify, you can also convert 2/50 back into a decimal by dividing 2 by 50, which equals 0.04. The other options are incorrect because they represent much larger values. For example, 1/4 equals 0.25, 2/5 equals 0.4, and 2/500 equals 0.004. On the NEX exam, remembering that two decimal places correspond to hundredths can help you quickly form the correct fraction before simplifying.
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NEW QUESTION # 106
The diagram below shows the rough endoplasmic reticulum of a cell as seen under the electron microscope.
The structures labeled Z are the site of protein synthesis.
Z is indicating
Answer: B
Explanation:
This question focuses on cell structure and function. The rough endoplasmic reticulum (RER) is characterized by the presence of small, dark granules attached to its surface. These granules are ribosomes. Ribosomes are the cellular structures responsible for protein synthesis, as they translate messenger RNA into amino acid chains. The presence of ribosomes gives the rough endoplasmic reticulum its "rough" appearance under an electron microscope. Mitochondria are involved in energy production, centrosomes play a role in cell division, and chromosomes contain genetic material within the nucleus. None of these structures are responsible for protein synthesis on the surface of the RER. The NEX Science exam frequently includes diagrams requiring students to identify organelles and link them to their functions. Recognizing ribosomes as the site of protein synthesis is a fundamental concept in cell biology.
NEW QUESTION # 107
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