answers 2024\2025 A+ Grade
Which of the following is the form of energy contained in nutrient molecules and in ATP's high energy
bonds?
a. Mechanical energy
b. Potential energy
c. Kinetic energy
d. Radiation energy
- correct answer b. Potential energy
Which of the following molecules, if present in urine, indicates a problem with kidney function?
a. Albumin
b. Creatinine
c. Sodium ions
d. Water
- correct answer a. Albumin
Which of the following glands produces melatonin, the hormone that regulates sleep?
a. Thyroid
b. Hypothalamus
c. Pituitary
d. Pineal
- correct answer d. Pineal
,If an intensive property is independent of the amount of the material being measured, what is an
example of an intensive property?
a. Mass
b. Volume
c. Density
d. Length
- correct answer c. Density
Density is a ratio of material present in a given volume. Water will have the same density whether in a
bucket or in a cup. It is independent of the amount of material. Therefore, it is an intensive property.
Anxiety about an upcoming final exam causes a student to experience an increase in blood pressure,
dilation of the pupils, and a dry mouth. Which of the following nervous system responses is responsible
for these physical symptoms?
A. Voluntary
B. Sympathetic
C. Limbic
D. Cognitive
- correct answer B. Sympathetic
Sympathetic responses are involuntary physiological responses, often provoked by stress.
Which of the following layers of the epidermis contains cells that provide protection against UV
radiation?
a. Stratum corneum
b. Stratum lucidum
c. Stratum spinosum
d. Stratum basale
- correct answer d. Stratum basale
, Stratum basale is the deepest layer of the epidermis and contains melanin-producing cells, called
melanocytes.
Nails are made of a protein called
a. collagen.
b. vinculin.
c. keratin.
d. elastin.
- correct answer c. keratin.
Which of the following conditions is related to an abnormality in the function of red blood cells?
a. Arrhythmia
b. Anemia
c. Hypertension
d. Leukemia
- correct answer b. Anemia
Pancreatic cells have an abundance of __________________ to meet the protein production demands
of the cell.
a. nuclei
b. mitochondria
c. lysosomes
d. rough endoplasmic reticulum
- correct answer d. rough endoplasmic reticulum
Which of the following explains what happens in the circulatory system during hyperventilation?
a. Oxygen levels increase, causing an increase in blood pH.
b. Oxygen levels decrease, causing a decrease in blood pH.
c. Carbon dioxide levels decrease, causing an increase in blood pH.
d. Carbon dioxide levels increase, causing a decrease in blood pH.
- correct answer c. Carbon dioxide levels decrease, causing an increase in blood pH.