Medical Quiz

Cell Structure and Functions Quiz


Preview:


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


Both smooth muscle fibers and cardiac muscle fibers:

A. have striations.

B. are under involuntary control.

C. are multinucleate.

D. have branching


What two tissues transport materials throughout the entire plant body?

A. sclerenchyma and xylem

B. phloem and xylem

C. parenchyma and xylem

D. sclerenchyma and collenchyma


Who am I? I am dead at maturity and have secondary cell walls composed of lignin.

A. sclerenchyma

B. collenchyma

C. parenchyma

D. phloem


The type of tissue represented is:

A. Compact bone

B. Hyaline cartilage

C. Simple squamous epithelium

D. Blood


Cholesterol within membranes functions as a(n) __________ through its interactions with both hydrophobic and hydrophilic parts of phospholipids

A. pH buffer

B. ebergy source

C. temperature controller

D. fluidity buffer


The extremely flexible tissue that provides support in soft, nonwoody plants, allowing them to grow upward, is:

A. Parenchyma tissue

B. Collenchyma tissue

C. Sclerenchyma tissue

D. Dermal tissue


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


Which of the following statements about the sodium-potassium pump is true?

A. It transports 3 sodium ions out of the cell in exchange for 2 potassium ions

B. It transports 2 sodium ions out of the cell in exchange for 3 potassium ions

C. It transports water directly out of the cell

D. It transports hydrogen ions out of the cell


This tissue carries nutrients, waste, respiratory gases and many other substances throughout the body

A. Bone

B. Blood

C. Cartilage

D. Muscle


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


The process illustrated in the figure would most likely be used to transport:

A. glucose

B. hormones

C. potassium ions

D. carbon dioxide


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


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


Parenchyma, collenchyma, and sclerenchyma are classified as:

A. Dermal tissues

B. Vascular tissues

C. Ground tissues

D. Primary tissues


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


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


Cells that secrete bone matrix

A. Osteoblast

B. Canaliculi

C. Osteocyte

D. Lamellae


Which cells or cell components play an essential role in the clotting of blood?

A. erythrocytes

B. platelets

C. leukocytes

D. plasma


__________, which are a type of xylem, are extremely efficient in conducting water.

A. Sieve tube element

B. Sclereid

C. Tracheid

D. Vessel element


Biological membranes are normally permeable to:

A. large, hydrophilic molecules

B. small, hydrophilic molecules

C. large, hydrophobic molecules

D. small, hydrophobic molecules


Dividing cells are found in all of the following except:

A. Apical meristems

B. Lateral meristems

C. Vascular cambium

D. Fiber cells


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


Facilitated diffusion:

A. requires a transmembrane protein

B. requires ATP

C. can move molecules against a concentration gradient

D. is typically used to transport small nonpolar molecules


A human white blood cell engulfs a bacterial cell by:

A. exocytosis

B. phagocytosis

C. pinocytosis

D. the sodium-potassium pump




Disclaimer:

Medical Quiz should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational and educational purposes only.