WGU D312 Anatomy & Physiology
OBJECTIVE ASSESSMENT Comprehensive
Resource To Help You Ace 2026-2027 Includes
Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. The cell's central organelle; contains the cell's DNA - Correct Answer:
Nucleus
2. The jelly-like substance in which the cell organelles and nucleus are
embedded - Correct Answer: Cytoplasm
3. A thin and flexible membrane surrounding the cells that acts as a barrier
between the intracellular and the extracellular fluids - Correct Answer:
Cell membrane
4. A membrane-associated protein that spans the entire width of the lipid
bilayer. - Correct Answer: Integral protein
5. A membrane-spanning protein that has an inner pore that allows the
passage of one or more substances. - Correct Answer: Channel protein
,6. A protein molecule that contains a binding site for another specific
molecule (called a ligand). - Correct Answer: Receptor
7. A molecule that binds with specificity to a specific receptor molecule. -
Correct Answer: Ligand
8. A protein that has one or more carbohydrates attached. - Correct
Answer: Glycoprotein
9. A coating of sugar molecules that surrounds the cell membrane. -
Correct Answer: Glycocalyx
10.A membrane-associated protein that does not span the width of the lipid
bilayer, but is attached peripherally to integral proteins, membrane lipids, or
other components of the membrane. - Correct Answer: Peripheral
protein
11.The solution or aqueous part within the cytoplasm in which many
organelles are suspended. - Correct Answer: Cytosol
12.Any of several different types of membrane-enclosed specialized structures
in the cell that perform specific functions for the cell. - Correct Answer:
Organelles
13.A network of membranes that are important for protein and lipid synthesis.
- Correct Answer: Endoplasmic reticulum
,14.The cell organelle responsible for protein synthesis. - Correct Answer:
Ribosome
15.A stack of small, flat sacs of membranes in the cytoplasm that prepare
protein and fat molecules. - Correct Answer: Golgi complex
16.Membrane-bound cell organelles containing digestive enzymes that
disintegrate decayed cell parts and may also destroy viruses and bacteria. -
Correct Answer: Lysosomes
17.Lysosomal breakdown of a cell's own components. - Correct Answer:
Autophagy
18.The breakdown of cells by their own enzymatic action. - Correct
Answer: Autolysis
19.The powerhouse of the cell that helps in ATP production and storage. -
Correct Answer: Mitochondrion (plural = mitochondria)
20.A porous double membrane barrier that separates the nucleus from the
cytoplasm. - Correct Answer: Nuclear envelope
21.A membrane-bound organelle that contains enzymes primarily responsible
for detoxifying harmful substances. - Correct Answer: Peroxisome
, 22.A group of extremely reactive peroxides and oxygen-containing radicals that
may contribute to cellular damage. - Correct Answer: Reactive oxygen
species (ROS)
23.A change in the nucleotide sequence in a gene within a cell's DNA. -
Correct Answer: Mutation
24.The "skeleton" of a cell; formed by rod-like proteins that support the cell's
shape and provide, among other functions, locomotive abilities. -
Correct Answer: Cytoskeleton
25.The thickest of the cytoskeletal filaments, composed of tubulin subunits
that function in cellular movement and structural support. - Correct
Answer: Microtubule
26.Small appendages on certain cells formed by microtubules and modified for
movement of materials across the cellular surface. - Correct Answer:
Cilia
27.An appendage on certain cells formed by microtubules and modified for
movement. - Correct Answer: Flagellum
28.A small, self-replicating organelle that provides the origin for microtubule
growth and moves DNA during cell division. - Correct Answer: Centriole
OBJECTIVE ASSESSMENT Comprehensive
Resource To Help You Ace 2026-2027 Includes
Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. The cell's central organelle; contains the cell's DNA - Correct Answer:
Nucleus
2. The jelly-like substance in which the cell organelles and nucleus are
embedded - Correct Answer: Cytoplasm
3. A thin and flexible membrane surrounding the cells that acts as a barrier
between the intracellular and the extracellular fluids - Correct Answer:
Cell membrane
4. A membrane-associated protein that spans the entire width of the lipid
bilayer. - Correct Answer: Integral protein
5. A membrane-spanning protein that has an inner pore that allows the
passage of one or more substances. - Correct Answer: Channel protein
,6. A protein molecule that contains a binding site for another specific
molecule (called a ligand). - Correct Answer: Receptor
7. A molecule that binds with specificity to a specific receptor molecule. -
Correct Answer: Ligand
8. A protein that has one or more carbohydrates attached. - Correct
Answer: Glycoprotein
9. A coating of sugar molecules that surrounds the cell membrane. -
Correct Answer: Glycocalyx
10.A membrane-associated protein that does not span the width of the lipid
bilayer, but is attached peripherally to integral proteins, membrane lipids, or
other components of the membrane. - Correct Answer: Peripheral
protein
11.The solution or aqueous part within the cytoplasm in which many
organelles are suspended. - Correct Answer: Cytosol
12.Any of several different types of membrane-enclosed specialized structures
in the cell that perform specific functions for the cell. - Correct Answer:
Organelles
13.A network of membranes that are important for protein and lipid synthesis.
- Correct Answer: Endoplasmic reticulum
,14.The cell organelle responsible for protein synthesis. - Correct Answer:
Ribosome
15.A stack of small, flat sacs of membranes in the cytoplasm that prepare
protein and fat molecules. - Correct Answer: Golgi complex
16.Membrane-bound cell organelles containing digestive enzymes that
disintegrate decayed cell parts and may also destroy viruses and bacteria. -
Correct Answer: Lysosomes
17.Lysosomal breakdown of a cell's own components. - Correct Answer:
Autophagy
18.The breakdown of cells by their own enzymatic action. - Correct
Answer: Autolysis
19.The powerhouse of the cell that helps in ATP production and storage. -
Correct Answer: Mitochondrion (plural = mitochondria)
20.A porous double membrane barrier that separates the nucleus from the
cytoplasm. - Correct Answer: Nuclear envelope
21.A membrane-bound organelle that contains enzymes primarily responsible
for detoxifying harmful substances. - Correct Answer: Peroxisome
, 22.A group of extremely reactive peroxides and oxygen-containing radicals that
may contribute to cellular damage. - Correct Answer: Reactive oxygen
species (ROS)
23.A change in the nucleotide sequence in a gene within a cell's DNA. -
Correct Answer: Mutation
24.The "skeleton" of a cell; formed by rod-like proteins that support the cell's
shape and provide, among other functions, locomotive abilities. -
Correct Answer: Cytoskeleton
25.The thickest of the cytoskeletal filaments, composed of tubulin subunits
that function in cellular movement and structural support. - Correct
Answer: Microtubule
26.Small appendages on certain cells formed by microtubules and modified for
movement of materials across the cellular surface. - Correct Answer:
Cilia
27.An appendage on certain cells formed by microtubules and modified for
movement. - Correct Answer: Flagellum
28.A small, self-replicating organelle that provides the origin for microtubule
growth and moves DNA during cell division. - Correct Answer: Centriole
