Golgi apparatus: particles composed of protein and RNA; synthesizes proteins
D.
mitochondrion: nonmembranous structure that synthesizes proteins
Q.43)
Osmosis is defined as the movement of
A.
molecules from high concentration to a low concentration
B.
water molecules from a high concentration to a low concentration through a selectively permeable membrane
C.
water molecules from a low concentration to a high concentration through a selectively permeable membrane
D.
ions from a low pressure region to a high pressure region through a selectively permeable membrane
Q.44)
The relationship of osmotic pressure and the number of solute particles in a solution is
A.
the lower the number of solute particles, the greater the osmotic pressure
B.
the greater the number of solute particles, the lower the osmotic pressure
C.
the greater the osmotic pressure, the lower the number of solute particles
D.
the greater the number of solute particles, the greater the osmotic pressure
Q.45)
A hypertonic solution
A.
has a greater concentration of solute particles than the cells in the solution
B.
would cause cells in the solution to lose water or become shrunken
C.
has greater osmotic pressure than do the cells in the solution
D.
all of the above
Q.46)
Lipids are synthesized in
A.
the Golgi apparatus
B.
the smooth endoplasmic reticulum
C.
the rough endoplasmic reticulum
D.
the liver
Q.47)
Cytoplasm occurs between the cell membrane and the nuclear envelope of a cell
A.
true
B.
false
Q.48)
A cell that secretes a large quantity of protein, would have a larger number of lysosomes for this function
A.
true
B.
false
Q.49)
A 5% glucose solution is isotonic to human cells
A.
true
B.
false
Q.50)
The movement of sodium ions from a region of lower concentration inside a cell toward a region of higher concentration outside the cell is accomplished by
( 2 words )
Q.51)
The outer membrane of the rough endoplasmic reticulum has organelles called __________ attached to it.
Q.52)
In dehydration synthesis of a carbohydrate,
A.
larger molecules are decomposed into smaller ones
B.
monosaccharides become joined together
C.
water molecules become joined to monosaccharide molecules
D.
the molecule is decomposed in to CO2 and H2O
Q.53)
When a sucrose molecule is decomposed to yield a glucose molecule and a fructose molecule,
A.
the process involves dehydration synthesis
B.
a water molecule is released
C.
a water molecule is used
D.
none of the above
Q.54)
The reactions of anaerobic respiration occur in the
A.
cytoplasm
B.
mitochondria
C.
nucleus
D.
all of the above
Q.55)
Which of the following substances increases in amount during cellular respiration?
A.
oxygen
B.
glucose
C.
ATP
D.
glycogen
Q.56)
Which of the following is an example of catabolism?
A.
The synthesis of the cell membrane from precursor molecules
B.
the oxidation of glucose in the cytoplasm and mitochondria
C.
the formation of secretory proteins in the pancreas
D.
the duplication of DNA molecules in the nucleus
Q.57)
What is the function of ADP molecules living in cells?
A.
They form a genetic material important for reproduction
B.
They act to "capture" energy from the oxidation of fuels to be used in other cell processes
C.
They act as coenzymes so that the fats can be synthesized.
D.
They are an integral part of the cell membrane, important in the transport of water molecules.
Q.58)
In the citric acid cycle,
A.
carbon dioxide is released
B.
hydrogen atoms are released
C.
2 ATP's form
D.
All of the above
Q.59)
Cellular respiration is defined as the process by which
A.
energy is released from molecules and is transferred to other molecules
B.
cells breathe, or take in O2 and give off CO2
C.
cells produce energy from O2 and absorb heat.
D.
energy is absorbed from glucose and is transferred to CO2
Q.60)
Anaerobic respiration involves chemical reactions in ____________, where as aerobic respiration involves reactions in ____________.
A.
mitochondria; cytplasm with O2 needed
B.
cytoplasm without O2 needed; cytoplasm with CO2 required
C.
mitochondria without O2 needed; mitochondria with O2 needed
D.
cytoplasm without O2 needed; mitochondria with O2 needed
Q.61)
The process of copying DNA information into the structure of the mRNA molecule is called which of the following?
A.
Translation
B.
synthesis
C.
replication
D.
transcription
Q.62)
During the anaerobic phase of respiration, pyruvic acid is transformed in to glucose
A.
true
B.
false
Q.63)
An ATP molecule consists of an adenine, a ribose and 3 phosphates.
A.
true
B.
false
Q.64)
Which of the following is not one of the 4 basic body tissues
A.
epithelial tissue
B.
connective tissue
C.
brain tissue
D.
muscle tissue
Q.65)
A basement membrane occurs between
A.
muscle and nerve tissue
B.
epithelial and connective tissue
C.
connective tissue and muscle tissue
D.
brain and nervous tissue
Q.66)
Epithelial tissue functions in
A.
secretion
B.
absorption
C.
protection
D.
all of the above
Q.67)
The muscle tissue that can be consciously controlled is
A.
smooth
B.
skeletal
C.
intercalated
D.
none of the above
Q.68)
Connective tissue fibers are produced by
A.
macrophages
B.
mast cells
C.
fibroblasts
D.
all of the above
Q.69)
A general characteristic of connective tissue is that it
A.
consists of cells with much intercellular material between tehm
B.
has no blood supply to the tissue
C.
covers the outside of organs
D.
commonly is found lining body cavities
Q.70)
Adipose tissue is a specialized form of
A.
fibrous connective tissue
B.
elastic connective tissue
C.
loose connective tissue
D.
reticular connective tissue
Q.71)
Epithelial tissues are characterized by a lack of blood vessels
A.
true
B.
false
Q.72)
The tissue that covers all body surfaces is
Q.73)
A single layer of flattened epithelium would constitute the tissue called
( 3 words )
Q.74)
Membranes lining the body cavities that lack openings to the outside are called
A.
synovial
B.
mucous
C.
serous
D.
cutaneous
Q.75)
The primary means by which body heat is lost
A.
conduction
B.
convection
C.
evaporation
D.
radiation
Q.76)
Which of the following is a normal response to excessive loss of body heat in a cold environment?
A.
Dermal blood vessels become constricted
B.
sweat glands become inactive
C.
skeletal muscles contract involuntarily
D.
all of the above
Q.77)
Exposure to ultraviolet light causes the skin to darken by stimulating the production of
A.
melanin
B.
carotene
C.
hemoglobin
D.
cyanin
Q.78)
An example of a serous membrane is
A.
the nasal membranes that secrete mucous
B.
the linings of the gastrointestinal system
C.
the lining of the thorax
D.
the membranes covering joint cavities in the knee
Q.79)
Sweat functions to cool the body by
A.
convection
B.
conduction
C.
evaporation
D.
radiation
Q.80)
Which of the following layers of the epidermis consists of a single row of columnar cells that undergo mitosis and includes pigment producing melanocytes?
A.
stratum corneum
B.
stratum granulosum
C.
stratum spinosum
D.
stratum germinativum
Q.81)
Shafts of hair are composed of
A.
living dermal cells
B.
dead dermal cells
C.
living epidermal cells
D.
dead epidermal cells
Q.82)
Eccrine sweat glands differ from sebaceous glands
A.
in terms of what is secreted
B.
in their location in the body
C.
because subaceous glands are associated with hair follicles, sweat glands are not.
D.
All of the above
Q.83)
Epidermal cells are supplied with nutrients from blood vessels located in the
A.
epidermis
B.
dermis
C.
subcutaneous layer
D.
all of the above
Q.84)
Serous membranes are characterized by __________, whereas mucous membranes are characterized by____________.
A.
Lining body cavities that lack openings to the outside; lining body cavities and tubes opening to the outside
B.
being composed of connective tissue only; being composed of epithelial tissue only
C.
secreting synovial fluid that lubricates the joint surfaces; secreting mucous
D.
lining joint cavities; covering the surface of the body
Q.85)
Epidermis is distinguished by being _____________, whereas the dermis is distinguished by being __________.
A.
the innermost layer of the skin; under the dermis
B.
composed of largely fibrous connective tissue; composed of stratified squamous epithelial tissue
C.
the outermost layer of skin; composed of stratified squamous epithelial tissue
D.
composed of stratified squamous epithelial tissue; composed of fibrous connective tissue.
Q.86)
A hair is distinguished from a hair follicle by
A.
being composed of living stratified squamous cells, whereas a hair follicle is composed of dead dermal cells
B.
originating in the subcutaneous layer, whereas a hair follicle originates in the dermis
C.
strictly the position, with the hair being in the center of the follicle
D.
being composed of dead epidermal cells, whereas a hair follicle is composed of living dermal cells
Q.87)
The subcutaneous layer can be described as
A.
being composed of loose connective tissue and adipose tissue
B.
the skin
C.
functioning as a heat insulator or helping to conserve body heat
D.
all of the above
Q.88)
The tough layer of waterproof material that makes up the outermost portion of the wpidermis is called the stratum lucidum
A.
true
B.
false
Q.89)
the outermost layer of the epidermis is stratum basale and the innermost layer is the stratum corneum
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