Cell Structure and Functions Quiz
Preview:
Who am I? I am dead at maturity and have secondary cell walls composed of lignin.
A. sclerenchyma
B. collenchyma
C. parenchyma
D. phloem
One difference between cardiac muscle fibers and skeletal muscle fibers is that cardiac muscle fibers:
A. are not striated, while skeletal muscle fibers are
B. have several nuclei, while skeletal muscle fibers do not
C. are under voluntary control, while skeletal muscle fibers are not
D. branch and form complex networks, while skeletal muscle fibers do not
This tissue carries nutrients, waste, respiratory gases and many other substances throughout the body
A. Bone
B. Blood
C. Cartilage
D. Muscle
If dense bone lacked canaliculi:
A. there would be no blood supply to the cells.
B. diffusion between cells would not be possible
C. there would be no nerve supply to the tissue
D. the extracellular matrix would not be formed by osteoblasts
Which type of epithelial cells will provide the most protection against abrasion, such as your foot rubbing against the bottom of your shoe?
A. Simple squamous
B. Stratified squamous
C. Simple cuboidal
D. Simple columnar
Cells that secrete bone matrix
A. Osteoblast
B. Canaliculi
C. Osteocyte
D. Lamellae
The type of epithelial tissue you would expect to find lining the upper respiratory tract is:
A. Simple squamous epithelium
B. Ciliated columnar epithelium
C. Stratified squamous epithelium
D. Simple cuboidal epithelium
Which of the following molecules is least likely to cross a cellular membrane by simple diffusion?
A. carbon dioxide
B. nitrogen
C. potassium ion
D. water
Used in places where diffusion needs to occur, such as blood vessels and air sacs of lung
A. Simple cuboidal
B. Simple squamous
C. Simple columnar
D. Stratified squamous
Cartilage-producing cells occupy small cavities in cartilage called __________, while bone-producing cells occupy cavities in bone called __________.
A. lacunae; Haversian canals
B. canaliculi; Haversian canals
C. lamellae; lacunae
D. lacunae; lacunae
Pinocytosis:
A. is engulfment of large particles by the cell
B. involves the specific binding of molecules to receptors on the cell surface
C. is the nonspecific uptake of fluids by pinching inward of the plasma membrane
D. is movement of molecules against the concentration gradient through a permeable membrane
This part of neuron insulates the axon and increases the speed of impulse transmission within neuron
A. Cell body
B. Myelin sheath
C. Dendrite
D. Axon terminal
__________, which are a type of xylem, are extremely efficient in conducting water.
A. Sieve tube element
B. Sclereid
C. Tracheid
D. Vessel element
A human white blood cell engulfs a bacterial cell by:
A. exocytosis
B. phagocytosis
C. pinocytosis
D. the sodium-potassium pump
In a nerve cell, the function of the dendrites is to:
A. conduct impulses away from the cell body.
B. receive impulses and conduct them to the cell body
C. increase the speed at which nerve impulses are carried away from the cell body
D. support and nourish the neuron