Math
Biology
Chemistry
Vocab
A&P
100
A right angle measures ___ degrees.
A. 30
B. 45
C. 90
D. 120
What is C. 90 degrees. The hallmark of a right triangle is one of the three angles measures 90 degrees.
100
A well-controlled experiment was conducted where researchers noted that a new antibiotic eliminated a bacterial sinus infection. Which of the following can be inferred from this result?
A. The medication killed the bacteria responsible for the sinus infection.
B. The medication acted as an antihistamine to cure the patient’s runny nose.
C. The medication alters the patient’s DNA to help them fight off an infection.
D. The medication helped eliminate the patient’s allergies.
What is A. The most likely explanation for the elimination of the sinus infection is that the medicine killed the bacteria. Antibiotics are drugs that kill or halt the growth of bacteria, so this is the most likely explanation for the elimination of the sinus infection since the antibiotics do not have an influence on a person’s allergies or DNA.
100
Milk turning sour is an example of a chemical
A. change
B. expansion
C. reactant
D. substitution
What is A. change
The souring of milk is a chemical change because the end product is lactic acid, a sour-tasting substance.
100
Precipitus is best defined as being:
A. damp
B. gentle
C. swift
D. dull
What is C.
Something that is precipitous is steep or fast-moving.
100
Which of the following is an HDL cholesterol level that might warrant regular testing?
A. 70
B. 60
C. 50
D. 40
What is D. 40
HDL "good" cholesterol levels in healthy adults range from around 40 - 120 mg/dL
200
What is the mode in the following set of numbers?
4 6 12 56 37 6 10 9 13 45 3 19 22
A. 4
B. 6
C. 10
D. 56
What is B. 6. The mode is the number occurring the most times in a series of numbers.
200
All metabolic reactions in a cell are catalyzed by which of the following?
A. Steroids
B. Phospholipids
C. Amino acids
D. Enzymes
What is D. Enzymes are a type of protein. They catalyze (cause or accelerate) different reactions and processes. Almost all cellular function is catalyzed by some type of enzyme.
200
Dry ice is an example of solid
A. anhydride
B. amalgam
C. carbon dioxide
D. water
What is C.
Dry ice is the solid form of carbon dioxide.
200
A condition that is ongoing is ___
A. rapid
B. continuous
C. partial
D. complete
What is B.
Ongoing denotes action in progress, no matter the speed.
200
6. What area of the eye has the most acute vision and is comprised only of cones?
a) Iris
b) Pupil
c) Retina
d) Macula
e) Fovea centralis
What is E.
All of the answer options are parts of the eye, the iris contributes to the color of the eye. The pupil regulates the amount of light entering the eye. The retina is the light-sensitive layer of tissue that helps project images onto the back of the eye. Though the macula is the region that contains the area with only cones, the specific structure is called the fovea centralis. Therefore, the correct answer is [E].
300
Simplify the following equation: Solve for a.
7(5a + 4) - 8 = 29a + 50
A. 5
B. 9
C. 13
D. 15
What is A. 5
300
Which of the following correctly identifies the difference between saturated and unsaturated fats?
A. Saturated fats contain two or more double bonds in their hydrocarbon tail, while unsaturated fats contain only one double bond.
B. There is no difference between saturated and unsaturated fats.
C. Unsaturated fats contain one or more double bonds in their hydrocarbon tail, while saturated fats contain no double bonds.
D. Saturated fats contain one or more double bonds in their hydrocarbon tail, while unsaturated fats contain no double bonds.
What is C.
Saturated fats are one of the two categories of fatty acids. Saturated fats contain no double bonds in their hydrocarbon tail. As a result, saturated fats are solid at room temperature and are considered detrimental to your cardiovascular health.
Unsaturated fats are the other of the two categories of fatty acids. Unsaturated fats contain one or more double bonds in their hydrocarbon tail. As a result, unsaturated fats are liquid at room temperature.
300
What is the ratio of hydrogen to oxygen in water?
A. 1:1
B. 1:2
C. 2:1
D. 2:2
What is C.
H2O is the chemical formula for dihydrogen monoxide. Each molecule of water is composed of two hydrogen atoms and one oxygen atom, providing a 2:1 ratio.
300
What is another word for cicatrix?
A. beetle
B. scalpel
C. antidote
D. scar
What is D.
Cicatrix is the latin word for 'scar'
300
The _________________ carries oxygen depleted blood away from the heart, while the ________________ carries oxygen-rich blood back towards the heart.
A. Pulmonary vein; pulmonary artery
B. Pulmonary artery; pulmonary vein
C. Aorta; pulmonary artery
D. Vena cava; pulmonary artery
What is B.
The pulmonary artery carries blood from the right ventricle to the lungs, where it can pick up oxygen. Therefore, oxygen-depleted blood is carried in the pulmonary artery. This is contrary to most arteries, which typically carry oxygen-rich blood. Once the blood is oxygenated in the lungs, it returns to the heart at the left atrium through the pulmonary vein.
400
A man carves wooden birds. He plans to donate 50 birds to a local charity to sell in their annual fundraiser. In his store, the birds sell for $15 each. On average, the man can carve four birds per day. How many days will the man need to carve 50 birds?
A. 10 days
B. 13 days
C. 16 days
D. 19 days
What is B. 13 days
400
Which are the correct mRNA bases, complementary to the following DNA strand “ TGCA”:
A. ACGT
B. ACGU
C. TGCA
D. TUGT
What is B.
In RNA, the complement of adenine (A) is uracil (U) instead of thymine (T), so the pairs that form are adenine: uracil and guanine: cytosine.
400
A substance with a pH of 3 is how many times more acidic than a substance with a pH of 5?
A. 8
B. 2
C. 100
D. 1000
What is C.
The pH scale is a logarithmic scale. Therefore each number on the pH represents a tenfold increase or decrease in acidity. A difference in pH of 2 equals a 10 times 10 (100) increase in acidity.
400
The jawbone may be called the ___
A. mantis
B. mantua
C. mandible
D. manganite
What is C.
The lower jaw of vertebrates or either jaw of certain insects is the mandible.
400
As air is inhaled, the sequence in which it passes through the respiratory tract is best described by which of the following choices?
A. Pharynx, nasal cavity, larynx, trachea, bronchi, bronchioles
B. Nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles
C. Nasal cavity, trachea, pharynx, larynx, bronchioles, bronchi
D. Nasal cavity, bronchi, bronchioles, trachea, pharynx, larynx
What is B.
When inhaling, air is taken in through the mouth and nose, and then through the larynx and pharynx. These passageways warm the air and prepare it for gas exchange. The air continues on through the trachea, commonly referred to as the “windpipe”. The trachea then splits into a right and left bronchi, with each side dividing further into smaller bronchioles. While some bronchioles may directly be involved in gas exchange, the majority of them are part of the conducting airway, which simply moves air through the respiratory system to get them to the alveoli where most of the gas exchange occurs.
500
Marcus is 20 years older than his youngest sister Cindy. The sum of their years is 66. How old is Cindy?
A. 12
B. 23
C. 46
D. 52
What is B. 23
500
The color purple (P) is dominant in a plant. If you have a purple plant with an unknown genotype and cross it with a white plant (pp) and get offspring which are 100% purple, what is the genotype of the unknown plant?
A. PP
B. Pp
C. pp
D. Uncertain
What is A. PP
In order for all the plants to have purple flowers, there can be no recessive alleles in the original (parent) purple plant. Since the purple allele is dominant, we know that the white plant must have two recessive alleles, otherwise it would be purple. Since all of the offspring have purple flowers, we can conclude that the original (parent) purple plant had to be PP.
500
B, Si, As, Te, At, Ge, and Sb form a staircase pattern on the right side of the periodic table. How can these elements be classified?
A. As metals
B. As semimetals
C. As nonmetals
D. As ultrametals
What is B.
Metals make up about two-thirds of the periodic table and are mostly located on the left and center areas of the periodic table
500
What is the meaning of disregard?
A. Have no opinion about
B. Pay attention to
C. Care for
D. Ignore
What is D.
To disregard is to "not regard", or to pay no attention to.
500
Which of the following is not a function of pancreatic juice?
A. Chemically digest proteins
B. Chemically digest carbohydrates
C. Increase acidity of stomach contents
D. Neutralize the pH of chyme
What is C.
Pancreatic juice is composed of several digestive enzymes as well as a high concentration of bicarbonate ions, making it an alkaline solution. Since the pH of this fluid is high (not acidic), it is unlikely that it would increase the acidity of the stomach.
Due to the various digestive enzymes, pancreatic juice does break down carbohydrates and proteins. And due to its high pH, it neutralizes the acidity of stomach chyme.