ACTUAL Questions and CORRECT
Answers
Cell - CORRECT ANSWER - Basic unit of life
Endoplasmic reticulum - CORRECT ANSWER - Facilitates transport, highway system by which
organelles can move throughout the cell. Composed of a delicate membrane of sacs and tunnels
Rough endoplasmic reticulum - CORRECT ANSWER - I am covered with ribosomes and am
connected to the nucleus in order to facilitate the transport of proteins into and out of the nucleus.
Ribosomes - CORRECT ANSWER - I am the primary sight of protein synthesis in the cell. I am
the most abundant organelle and flow freely in the cytoplasm to synthesize proteins.
Golgi apparatus - CORRECT ANSWER - I sort, process, package, and deliver proteins and lipids
throughout the cell. I can get quite large in cells that have high content of proteins and lipids
Lysosomes - CORRECT ANSWER - I am a recycling bin for older and damaged organelles and I
contain hydrolytic enzymes that degrade macromolecules. My digested components are often transported
to the Golgi apparatus via vascular transport.
Mitochondria - CORRECT ANSWER - Synthesize ATP for cellular respiration. I have christae,
which maximize my surface area for ATP synthesis
Cytosol - CORRECT ANSWER - a viscous fluid in which the other components are suspended;
consists of water plus proteins, salts, sugars, other solutes as well as other macromolecules
Microfilaments - CORRECT ANSWER - Composed of actin, embedded within the plasma
membrane. Facilitates shape changes and cell movement.
, Intermediate filaments - CORRECT ANSWER - Composed of collagen fibres and constructed like
woven ropes of tetramer fibres. Provides strength to the structure of the cell
Microtubules - CORRECT ANSWER - I am composed of the protein tubulin. I facilitate the
intracellular movement of substances.
Chromatin - CORRECT ANSWER - DNA plus associated proteins
Tissues - CORRECT ANSWER - Group of structurally similar cells that perform common/related
function
Protection, absorption, filtration, excretion, secretion, sensory reception - CORRECT ANSWER -
p,a,f,e,s,s are all functions of various epithelia
Polarity, specialized contacts, support by basement membrane, avascular, innervated, regeneration -
CORRECT ANSWER - Structural characteristics of epithelial tissue
Simple squamous epithelium - CORRECT ANSWER - Thin and permeable epithelium, found in
areas of filtration and absorption
Simple cuboidal epithelium - CORRECT ANSWER - Thicker epithelial cell in which secretion and
absorption is more active
Simple columnar epithelium - CORRECT ANSWER - Longer than cuboidal epithelium. A single
layer of cells that play a great role in digestion and secretion - compose cells of the digestive tract
Pseudo stratified columnar epithelium - CORRECT ANSWER - Simple in nature because the cells
of various heights are all attached to the basement membrane. Found in respiratory tract where cilia and
mucus secretion are local specializations.