ASVAB General Science Practice Test 347964 Results

Your Results Global Average
Questions 5 5
Correct 0 3.36
Score 0% 67%

Review

1

In the pancreas, lipase converts fat to:

64% Answer Correctly

complex carbohydrates

glycerol and fatty acids

simple sugars

amino acids


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.


2

Convert 5C° to F°.

53% Answer Correctly

37

27

41

-23


Solution

To convert from C° to F° use:

\(F° = {9 \over 5}C° + 32\)

\(F° = {9 \over 5}(5) + 32\)

\(F° = {45 \over 5} + 32\)

\(F° = 9 + 32 = 41\)


3

The envelope of gases surrounding the planet is called the:

78% Answer Correctly

lithosphere

geosphere

atmosphere

hydrosphere


Solution

The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).


4

Which of the following indicates the correct reproductive sequence?

64% Answer Correctly

ovum → zygote → fetus

zygote → ovum → fetus

none of these are correct

ovum → fetus → zygote


Solution

During intercourse, the penis ejaculates sperm, produced in the testes, into the vagina. Some of the sperm makes their way to the uterus where, if they encounter an egg to fertilize, unite with the ovum to form a fertilized egg or zygote. The zygote then may implant in the uterus and eventually develop into a fetus.


5

Gametes have how many pairs of chromosomes?

76% Answer Correctly

23

46

4

2


Solution

Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.