Medical Quiz

Cell Structure and Functions Quiz


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


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

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

A. glucose

B. hormones

C. potassium ions

D. carbon dioxide

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

A. erythrocytes

B. platelets

C. leukocytes

D. plasma

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

A. Sieve tube element

B. Sclereid

C. Tracheid

D. Vessel element

Dividing cells are found in all of the following except:

A. Apical meristems

B. Lateral meristems

C. Vascular cambium

D. Fiber cells

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

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

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

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

A. sclerenchyma

B. collenchyma

C. parenchyma

D. phloem

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

The type of tissue represented is:

A. Compact bone

B. Hyaline cartilage

C. Simple squamous epithelium

D. Blood

__________ are living cells that do not conduct sugar themselves but play a crucial role in assisting the movement of sugars.

A. Sieve tube elements

B. Sieve plate

C. Tracheids

D. Companion cells

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

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

A human white blood cell engulfs a bacterial cell by:

A. exocytosis

B. phagocytosis

C. pinocytosis

D. the sodium-potassium pump

Parenchyma, collenchyma, and sclerenchyma are classified as:

A. Dermal tissues

B. Vascular tissues

C. Ground tissues

D. Primary tissues

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

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

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

A. Bone

B. Blood

C. Cartilage

D. Muscle

Biological membranes are normally permeable to:

A. large, hydrophilic molecules

B. small, hydrophilic molecules

C. large, hydrophobic molecules

D. small, hydrophobic molecules

What is meant by the term “fluid mosaic model”?

A. It is the diffusion of lipid-soluble substances through the lipid bilayer.

B. It is the movement of lipids and integral proteins within the lipid bilayer

C. It is the solubility of water in the membrane

D. It is the method of substance transport across the membrane

Cells that secrete bone matrix

A. Osteoblast

B. Canaliculi

C. Osteocyte

D. Lamellae


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