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WorksheetsThe Cellular Level of Organization
Total questions: 20
Worksheet time: 10mins
It separates the inner contents of a cell from its exterior environment and provides a protective barrier around the cell and regulates which materials can pass in or out.
(a)
Because they are embedded within the membrane, ion channels are examples of ________.
receptor proteins
integral proteins
peripheral proteins
glycoproteins
The copying of DNA that occurs before cell division can take place.
DNA Transcription
DNA Replication
RNA Transcription
RNA Replication
The rough ER has its name due to what associated structures?
Golgi apparatus
ribosomes
lysosomes
proteins
Cell shrinkage is also called
crenation
lysis
cellular dissolution
hydrostatic pressure
Substances outside the cell membrane are called
intracellular substances
extracellular substances
intercellular substances
Both extracellular material and intercellular material are correct names
All of these are correct names
Which of the following organelles are incorrectly paired with their location within the cell?
nucleolus - within the nucleus
cilia - on the cell surface
golgi apparatus - on the cell surface
microtubules - within the cytoplasm
smooth endoplasmic reticulum - within the cytoplasm of the cell
Cell membranes are said to be selectively permeable because they
allow the free passage of some materials and restrict the passage of others
allow the passage of materials in one direction but not the other
permit the passage of most materials but not of water
Cell membranes are NOT normally selectively permeable.
Which of the following cell organelles is NOT correctly matched with its function?
nucleus - contains genes that determine the structure and function of each cell
lysosome - contains digestive enzymes
mitochondria - site of protein synthesis
Golgi apparatus - packages proteins in secretory vesicles
smooth ER - site of lipid synthesis
The movement of substances across the membrane without the expenditure of cellular energy.
Active
Passive
Neutral
All of these
Have the potential to differentiate into any of the cells needed to enable an organism to grow and develop.
Pluripotent cells
Oligopotent cells
Multipotent cells
Totipotent cells
Unipotent cells
Which of the following sequences on a DNA molecule would be complementary to GCTTATAT?
TAGGCGCG
ATCCGCGC
CGAATATA
TGCCTCTC
How many “letters” of an RNA molecule, in sequence, does it take to provide the code for a single amino acid?
1
2
3
4
Which type of stem cell gives rise to red and white blood cells?
endothelial
epithelial
hematopoietic
mesenchymal
Arrange the following phases in order during mitosis.
anaphase, telophase, metaphase, prophase
metaphase, anaphase, telophase, prophase
prophase, metaphase, anaphase, telophase
prophase, anaphase, metaphase, telophase
When the polymerase has reached the end of the gene, one of three specific triplets codes a “stop” signal, which triggers the enzymes to terminate transcription and release the mRNA transcript except:
UAA
UAG
UUU
UGA
Specific molecule that binds to and activates a receptor.
Ligand
Membrane
glycocalyx
glycoproteins
The movement of particles from an area of higher concentration to an area of lower concentration.
(a)
Cell eating.
pinocytosis
phagocytosis
exocytosis
lysozyme
The concept of a cell started with microscopic observations of dead cork tissue by scientist:
(a)
