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ARMY ASVAB GENERAL MAINTENANCE (GENERAL
SCIENCE) EXAM QUESTIONS
Qs and Ans - Expert- Explanation - ing score -16 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: Fats
Answer:
Like carbohydrates, fats provide energy to the body. The difference is energy from fats tends to be longer burning as opposed to the quick fuel provided by carbohydrates. Fats come in three types, satu (meats, shellfish, eggs, milk), monounsatu (olives, almonds, avocados), and polyunsatu (vegetable oils). Satu fats can raise LDL ("bad") cholesterol while unsatu fats can decrease it.
Question 2: Fiber
Answer:
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.
Question 3: Tendons and Ligaments
Answer:
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
Question 4: Circulation
Answer:
Like the respiratory system, the circulatory system serves to transport oxygen throughout the body while removing carbon dioxide. In addition, the circulatory system transports nutrients from the digestive system.
Question 5: Respiration
Answer:
The respiratory system manages respiration which is the process by which blood cells absorb oxygen and eliminate carbon dioxide.
Question 6: Bones and Cartilage
Answer:
Hard bones provide primary support for the endoskeleton while more flexible cartilage is found at the end of all bones, at the joints, and in the nose and ears. In addition to providing support and protecting bodily organs, bones also produce blood cells and store minerals like calcium.
Question 7: Heart
Answer:
The heart is the organ that drives the circulatory system. In humans, it consists of four chambers with two that collect blood called atria and two that pump blood called ventricles. The heart's valves prevent blood pumped out of the ventricles from flowing back into the heart.
Question 8: Carbohydrates
Answer:
Carbohydrates are major sources of energy for the body and are found in sugars (fruit, cane sugar, beets) and starches (bread, rice, potatoes, pasta).
Question 9: Exoskeleton
Answer:
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
Question 10: Filtering Air
Answer:
After air enters through the nose, it passes through the nasal cavity which filters, moistens, and warms it. Further filtering takes place in the pharynx, which also helps protect against infection, and then in the trachea which is just past the epiglottis, responsible for preventing food from entering the airway.
Question 11: Lungs
Answer:
The trachea branches into the left and right bronchi which each lead to a lung where the bronchi subdivide into smaller tubes called bronchioles. Each bronchiole ends in a small sac called an alveolus which allows oxygen from the air to enter the bloodstream via tiny blood vessels called capillaries.
Question 12: Endoskeleton
Answer:
An endoskeleton (internal skeleton) is a charateristic of vertebrate animals, including humans.
Question 13: Vitamins
Answer:
Vitamins are necessary for a wide variety of bodily processes. Some vitamins like Vitamins A and C come from diet but others, like Vitamin D, are gene in response to sunlight.
Question 14: Breathing
Answer:
The diaphragm is a system of muscles that allows breathing. During inhalation, the diaphragm expands and air rushes in to fill the space created. Then, during exhalation, the diaphragm contracts and forces the air back out.
Question 15: Minerals
Answer:
Small quantities of certain minerals like iron, calcium, magnesium, and salt are important for nutrition and health
Question 16: Proteins
Answer:
Found in both animal sources (meat, fish, eggs, cheese) and vegetables (beans, nuts, some grains), proteins are important for the body's maintenance, growth, and repair.
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