Cell Structure & Organelles
Which type of cell junction anchors skin cells together and prevents them from being pulled apart by mechanical stress (like a pinch)?
tight junction
desmosome
gap junction
peroxisome
Correct Answer: desmosome
The centrioles generate which component of the cytoskeleton?
microfilaments
intermediate filaments
microtubules
cilia
microtubules
Blood is primarily composed of plasma and:
fibroblasts
adipocytes
oocytes
erythrocytes
Correct Answer: erythrocytes
Which type of muscle cell is responsible for moving food through the intestines?
cardiac
skeletal
smooth
rough
Correct Answer: smooth
Passive transport:
requires energy in the form of ATP
requires energy in the form of glucose
sometimes requires energy
never requires energy
Correct Answer: never requires energy
The purpose of the phospholipid bilayer is to:
generate energy for the cell
detoxify drugs
produce proteins
create a boundary (between the inside and outside of the cell)
Correct Answer: create a boundary (between the inside and outside of the cell)
Which organelle is able to digest bacteria?
lysosome
mitochondrion
peroxisome
Golgi
Correct Answer: lysosome
Which cell is only found in females?
fibroblasts
neurons
oocytes
adipocytes
Correct Answer: oocytes
Which cell receives and transmits impulses?
adipocyte
neuron
fibroblast
oocytes
Correct Answer: neuron
Pinocytosis is:
cell eating
cell drinking
cell suicide
a selective form of endocytosis
Correct Answer: cell drinking
Where is the DNA located within a cell?
nucleolus
nucleus
lysosome
cytoplasm
Correct Answer: nucleus
Intestinal epithelial cells absorb nutrients through tiny, finger-like extensions called:
microvilli
cilia
flagella
centrioles
Correct Answer: microvilli
Fibroblasts secrete:
antibodies
carbohydrates
fibers
neurotransmitters
Correct Answer: fibers
Which type of cell would need to be full of lysosomes?
white blood cell
erythrocyte
neuron
epithelial cell
Correct Answer: white blood cell
A small, non-polar solute would cross the cell membrane through:
facilitated diffusion
simple diffusion
phagocytosis
a solute pump
Correct Answer: simple diffusion
The rough ER is studded with _________, which make ________:
lysosomes; lipids
ribosomes; proteins
proteins; hormones
peroxisomes; alcohol
Correct Answer: ribosomes; proteins
The short, whip-like cellular extensions that move mucus out of the lungs are called:
flagella
centrioles
intermediate filaments
cilia
Correct Answer: cilia
Cells that cover and line the body are called:
epithelial cells
erythrocytes
adipocytes
stem cells
✅ Correct Answer: epithelial cells
The solute in ocean water is:
water
salt
sugar
lipids
Correct Answer: salt
The facilitated diffusion of glucose requires:
nothing
just a protein carrier
a protein carrier and ATP
just a vesicle
Correct Answer: just a protein carrier
Which organelle makes ATP for the cell through cellular respiration?
nucleus
ribosome
mitochondrion
Golgi
Correct Answer: mitochondrion
The process by which cells become specialized is known as:
stem cellization
differentiation
rebirth
dissertation
Correct Answer: differentiation
In which cell would you find a large lipid droplet?
epithelial cell
adipocyte
fibroblast
erythrocyte
Correct Answer: adipocyte
The fluid that continuously bathes the exterior of cells is:
intracellular fluid
interstitial fluid
extracellular fluid
plasma
Correct Answer: interstitial fluid
Filtration of blood in the kidneys is driven by:
a concentration gradient
a solute pump
receptor-mediated endocytosis
a pressure gradient
Correct Answer: a pressure gradient