ASVAB General Science Practice Test 474796 Results

Your Results Global Average
Questions 5 5
Correct 0 3.27
Score 0% 65%

Review

1

Which of these is not a phase in cell division?

62% Answer Correctly

anaphase

interphase

cytokinesis

megaphase


Solution

Cell division is the process by which cells replicate genetic material in the nucleus and consists of several phases, beginning with interphase and ending with cytokinesis.


2

Which of the following substances gives up positively charged hydrogen ions (H+) when dissolved in water?

55% Answer Correctly

alkaline

base

acid

solution


Solution

An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.


3

Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.

78% Answer Correctly

decrease, stabilize

decrease, raise

raise, decrease

stabilize, raise


Solution

Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.


4

In which type of compound are electrons shared between atoms?

56% Answer Correctly

ionic

molecular

covalent

chemical


Solution

A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.


5

Which of these digestive enzymes is not produced by the pancreas?

63% Answer Correctly

gastric acid

pancreatic amylase

lipase

trypsin


Solution

The acids produced by the pancreas contain several enzymes that aid in digestion.  Lipase converts fat to glycerol and fatty acids. Pancreatic amylase breaks down complex carbohydrates into simple sugars. Trypsin converts polypeptides (the building blocks of protein) into amino acids.