Module 3 Lecture Exam Questions Flashcards
The substance that moves most rapidly through the cell membrane is:
water
Which of the following statements is NOT true of mitosis?
it occurs at the same rate in all cells
The stage of mitosis during which the chromosomes line up across the spindle is called:
metaphase
In the anatomical position, the palms of the hands are facing the posterior.
false (anterior)
The term proximal means “away from the point of origin”.
false (toward point of origin)
Anabolism produces:
more complex materials needed for bodily functions (opposite of catabolism)
In the anatomical position, your big toes are inferior to your knees and ventral to your ankles.
true
Using the description of anatomical structures as described in your course materials, the esophagus would be most appropriately be classified as which of the following?
organ
The existence and maintenance of relatively stable conditions inside the body despite the influence of dynamic and unpredictable internal and external environments is called.
homeostasis
Sweat glands and fingernails are part of which of the following organ systems of the body?
integumentary system
Epithelium that is arranged in many layers is described as “Simple”.
false
Endocrine glands produce:
hormones
Specialized cells that function to secrete products either onto a body surface, or into the blood either directly or via a duct.
glands
The supportive cells in the nervous system are collectively known as:
neuroglia
Cells involved in the healing of the epidermis are produced by cell division occurring in which ONE of the following epidermal strata?
stratum basale
A precursor form of which ONE of the following vitamins is produced in the skin?
vitamin D
Deep wound healing takes place when the dermis has been penetrated.
true
What is the skin protection that absorbs ultraviolet radiation to protect deeper tissue from damage?
melanin
The stratum lucidum is only found in the hairless, thick skin of the fingertips, palms and soles of the feet.
true
A modified apocrine sweat gland that produces wax is the __________.
ceruminous gland
A positively charged ion is an “anion”.
false
What is a mixture that contains larger particles that are heterogeneous and appear translucent or cloudy?
colloid
Which of the following statements is NOT true of enzymes?
A. Their names usually end in the suffix -ase.
B. Their shape is important in reactions.
C. They are used up in reactions.
D. They sometimes need cofactors.
C. they are used up in reactions
Which of the following is NOT a common chemical element in the body?
A. Hydrogen
B. Carbon
C. Oxygen
D. Copper
copper
Which of the following is NOT an organic compound?
A. Fat
B. Water
C. Glycerol
D. Carbohydrates
water
A chemical bond formed by the swapping of electrons is described as a (an):
ionic bond (covalent is sharing)
Which of the following is NOT a compound?
A. Water
B. Table salt
C. Phosphorus
D. Hydrochloric acid
phosphorus
All the matter in the universe is composed of one or more fundamental substances known as:
elements
The molecular mass of a molecule consists of:
the sum of the atomic mass of its atoms
All the following are monosaccharides except:
A. Fructose
B. Sucrose
C. Galactose
D. Glucose
sucrose (disaccharide)
Ions are atoms that contain an uneven number of protons and electrons which results in an overall positive or negative charge.
true
Which of the following is NOT true?
A. Electronegativity is the ability of an atom to attract electrons to itself
B. The more electronegative an atom is, the more strongly it can attract electrons
C. Fluorine is far more electronegative than hydrogen.
D. Oxygen (O2) is very electronegative, and it is polar.
Oxygen (O2) is very electronegative, and it is polar
Exergonic reactions ………. energy.
release
When the reactants of a chemical reaction have more energy than the products, they have undergone an ……….. reaction.
exergonic
“Decomposition of two substances and, in exchange, synthesis of two new compounds from them”.
exchange reaction
The rate of a chemical reaction can be determined by:
concentration of reactions AND products
What is also known as “proton donors”?
acids
Which of the following best describes the main structural difference between triglycerides and phospholipids?
triglycerides contain three fatty acid groups, but phospholipids have two fatty acid groups and one phosphate molecule
Which of the following statements is NOT true of skeletal muscle?
A. The cells are long and thread-like.
B. It is normally under conscious control.
C. It is involuntary.
D. It is described as straited.
it is involuntary
What is the longest muscle in the body, travels obliquely across the front of the thigh?
sartorius
The flexor carpi and extensor carpi muscles move the foot.
false (hands)
All of the following are muscles of mastication except:
A. Masseter
B. Temporalis
C. Medial pterygoid
D. Extensor digiti minimi
extensor digiti minimi
The obicularis oris is a circular muscle that surrounds the oral opening and is responsible for closing and pursing the lips.
true
The biceps femoris, semitendinosus, and semimembranosus mucles are part of the:
hamstring muscles
What muscles rotate the head?
sternocleidomastoid
The latissimus dorsi muscles are used when?
rowing
Which of the following types of muscle tissue is found within your digestive system and used to move food through your esophagus, stomach, and intestines?
smooth
Muscles are made of bundles of fibers. Which is the correct order from SMALLEST to LARGEST in this organizational structure of muscle?
myofibril, muscle fiber, fascicle, muscle
Which two structures engage to create muscle contraction?
actin and myosin
Henry is getting ready to kick a field goal. When his thigh muscle contracts to straighten his knee right before the kick, this is known as …………….. contractions?
concentric
Muscles that work in opposition to the prime mover are known as:
antagonist
Where is the temporalis muscle located?
on the side of the head
Which of the following terms would be used in the name of a muscle that moves the leg away from the body?
abductor
In the female, the pelvic floor is pierced by two openings.
false
Which of the following is NOT one of the rotator cuff muscles?
A. Supraspinatus
B. Infraspinatus
D. Subscapularis
C. Teres major
teres major
Anatomists refer to the lower arm as the arm or the brachium.
false
A group of four strong muscles, located on the anterior surface of the thigh is called:
quadriceps
Which of the following is NOT a muscle of the abdomen?
A. Iliopsoas
B. Internal oblique
C. Rectus abdominis
D. External oblique
iliopsoas
