The Cellular Level Of Organization
This question bank verified by Studydeets
Questions Bank
- An Introduction to Anatomy and PhysiologyThe Chemical Level of OrganizationThe Cellular Level of OrganizationThe Tissue Level of OrganizationThe Integumentary SystemBones and Bone StructureThe Axial SkeletonThe Appendicular SkeletonJointsMuscle TissueThe Muscular SystemNervous TissueThe Spinal Cord, Spinal Nerves, and Spinal ReflexesThe Brain and Cranial NervesSensory Pathways and the Somatic Nervous SystemThe Autonomic Nervous System and Higher-Order FunctionsThe Special SensesThe Endocrine SystemBloodThe HeartBlood Vessels and CirculationThe Lymphatic System and ImmunityThe Respiratory SystemThe Digestive SystemMetabolism, Nutrition, and EnergeticsThe Urinary SystemFluid, Electrolyte, and Acid-Base BalanceThe Reproductive SystemDevelopment and Inheritance
Question 1
Free
Multiple Choice
What is an advantage of the electron microscope over the compound light microscope?
Choose correct answer/s
It can function in complete darkness.
It is older, more reliable technology.
It is less expensive.
It allows much greater magnification of a specimen.
It is portable.
Check answer
Question 2
Free
Multiple Choice
The smallest living unit within the human body is
Choose correct answer/s
a protein.
a cell.
a tissue.
an organ.
an organ system.
Check answer
Question 3
Free
Multiple Choice
The cell theory includes all of these concepts except
Choose correct answer/s
each cell maintains homeostasis at the cellular level.
cells are the smallest units that carry out the essential functions of life.
cells are the building blocks of all organisms.
all cells come from the division of preexisting cells.
every cell is capable of living on its own if isolated from the body.
Check answer
Question 4
Free
Multiple Choice
The only kind of cell in the body that is not produced by the division of preexisting cells is
Choose correct answer/s
a gamete (sperm or egg cell).
a neuron (nerve cell).
an osteocyte (bone cell).
none, because every cell is produced by the division of another cell.
a liver cell.
Check answer
Question 5
Free
Multiple Choice
What would be an example of a cell maintaining homeostasis at the cellular level?
Choose correct answer/s
a cell of the intestine secretes digestive enzymes
a muscle cell contracts
a sperm fertilizes an egg
a cell takes up potassium to maintain the proper cytoplasmic potassium concentration
a cell divides to become two cells
Check answer
Question 6
Multiple Choice
Cytology is the study of
Choose correct answer/s
biological macromolecules.
causes and treatment of cancer.
the origins of life on Earth.
genes and their function.
the structure and function of cells.
To unlock the question
Question 7
Multiple Choice
________ cells are all of the cells of the body except the reproductive cells (sperm and oocytes).
Choose correct answer/s
Core
Somatic
Corpus
Main
Primary
To unlock the question
Question 8
Multiple Choice
Most cells have only one
Choose correct answer/s
nucleus.
ribosome.
peroxisome.
lysosome.
mitochondrion.
To unlock the question
Question 9
Multiple Choice
The extracellular fluid in most tissues is called ________ fluid.
Choose correct answer/s
interstitial
cytosolic
cytoplasmic
outside
peripheral
To unlock the question
Question 10
Multiple Choice
What is a structure that separates the contents of a human cell from its surrounding medium?
Choose correct answer/s
cell wall
tissue
plasma membrane
skin
nucleus
To unlock the question
Question 11
Multiple Choice
If a hole is torn in a cell's plasma membrane, the cell will die because
Choose correct answer/s
it will not be able to maintain differences between the cytoplasm and extracellular fluid.
germs are attracted toward cytoplasm leaking from a cell.
it will not be able to undergo cell division.
its chromosomes will not be held in place.
cells can only make more plasma membrane during cell division.
To unlock the question
Question 12
Multiple Choice
What is the first part of the cell that is affected when the pH of extracellular fluid changes?
Choose correct answer/s
the nucleus
the nucleolus
the cytosol
the plasma membrane
the cytoskeleton
To unlock the question
Question 13
Multiple Choice
How is the plasma membrane involved in structural support of body tissues?
Choose correct answer/s
It has specialized connections to other cells or extracellular materials.
It primarily consists of fibrous proteins.
It is inflated by cytoplasm at high pressure.
Tissues are largely composed of empty plasma membranes left by dead cells.
It is hydrophobic, so it repels extracellular fluid and attracts the membranes of other cells.
To unlock the question
Question 14
Multiple Choice
Functions of the plasma membrane include all of the following except
Choose correct answer/s
separation of the cytoplasm from the extracellular fluid.
regulation of exchange of materials with the extracellular environment.
sensitivity to chemical changes in the extracellular fluid.
thermal insulation.
structural support.
To unlock the question
Question 15
Multiple Choice
Which of the following is not a function of membrane proteins?
Choose correct answer/s
bind to ligands
regulate the passage of ions
act as carrier molecules for various solutes
act as anchors or stabilizers for the cell membrane
store cellular nutrients
To unlock the question
Question 16
Multiple Choice
Most of the surface area of a plasma membrane consists of
Choose correct answer/s
a protein bilayer.
a phospholipid bilayer.
carbohydrate molecules.
DNA.
cells.
To unlock the question
Question 17
Multiple Choice
The tails of a phospholipid molecule in a plasma membrane are
Choose correct answer/s
hydrophilic.
composed of amino acids.
hydrophobic.
facing the cytosol.
interlocked to provide membrane strength.
To unlock the question
Question 18
Multiple Choice
The plasma membrane does not include
Choose correct answer/s
integral proteins.
glycolipids.
phospholipids.
cholesterol.
silk mesh.
To unlock the question
Question 19
Multiple Choice
Identify the role of cholesterol in the plasma membrane.
Choose correct answer/s
enables ions to pass
forms enzymes
reduces membrane fluidity and permeability
anchors the phospholipids
provides energy
To unlock the question
Question 20
Multiple Choice
Figure 3-1 The Plasma membrane
Use Figure 3-1 to answer the following questions.
-What part of the plasma membrane is hydrophobic?
Choose correct answer/s
2
3
4
5
6
To unlock the question