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What correctly describes some aspect of protein secretion from prokaryotic cells?
Prokaryotic cells secrete proteins using the Sec-dependent pathway, where proteins are synthesized with a signal peptide that targets them to the Sec translocase for transport across the cytoplasmic membrane. Once in the periplasm, proteins can be further transported across the outer membrane via specialized secretion systems such as Type II or Type III secretion systems.
Name two differences between the heredity material of a prokaryotic cell and a eukaryotic cell?
Prokaryotic cells have a single circular chromosome, while eukaryotic cells have multiple linear chromosomes. Prokaryotic cells lack a nucleus and their DNA is not associated with histone proteins, whereas eukaryotic cells have a nucleus where their DNA is stored and packaged with histone proteins.
What do prokaryotic cells contain that make proteins?
Prokaryotic cells contain ribosomes, transfer RNA, messenger RNA, and amino acids that are essential for protein synthesis. The ribosomes read the messenger RNA code and help assemble amino acids into proteins through a process called translation.
Difference between eukaryotic cell and prokaryotic cell?
Eukariya means true nucleus.Main difference is Eukariyotes have a nucleus.Having membranous organells is identical to eukaryotes.
What do Type 2 alveolar cells secrete?
Type 2 alveolar cells secrete surfactant, a mixture of lipids and proteins that reduces surface tension in the alveoli, preventing them from collapsing. This helps maintain the elasticity of the alveoli and promotes efficient gas exchange in the lungs.
What does the secretory vesicles do in animal cells?
They mostly secrete proteins...
Does prokaryotic cells have microfilaments?
Prokaryotic cells do not have microfilaments like eukaryotic cells do. Prokaryotic cells lack many of the membrane-bound organelles found in eukaryotic cells and have a simpler cytoskeleton that typically includes proteins like MreB and FtsZ for cell structure and division.
What correctly describes some aspect of protein secretion from prokaryotic cells?
Prokaryotic cells secrete proteins using the Sec-dependent pathway, where proteins are synthesized with a signal peptide that targets them to the Sec translocase for transport across the cytoplasmic membrane. Once in the periplasm, proteins can be further transported across the outer membrane via specialized secretion systems such as Type II or Type III secretion systems.
Name two differences between the heredity material of a prokaryotic cell and a eukaryotic cell?
Prokaryotic cells have a single circular chromosome, while eukaryotic cells have multiple linear chromosomes. Prokaryotic cells lack a nucleus and their DNA is not associated with histone proteins, whereas eukaryotic cells have a nucleus where their DNA is stored and packaged with histone proteins.
Is the ribosome absent in a prokaryotic cell?
No, ribosomes are in prokaryote cells and doing the job of synthesizing proteins.
What do prokaryotic cells contain that make proteins?
Prokaryotic cells contain ribosomes, transfer RNA, messenger RNA, and amino acids that are essential for protein synthesis. The ribosomes read the messenger RNA code and help assemble amino acids into proteins through a process called translation.
What are the final products of proteins?
In prokaryotic cells, mRNA is directly produced. In eukaryotic cells, the first product is called the primary transcript.
Difference between eukaryotic cell and prokaryotic cell?
Eukariya means true nucleus.Main difference is Eukariyotes have a nucleus.Having membranous organells is identical to eukaryotes.
What do prokaryotic and eukaryotic cells use to turn certain genes on or off?
Prokaryotic cells use regulatory proteins like repressors or activators that bind to the DNA to turn genes on or off. Eukaryotic cells use a combination of transcription factors, chromatin remodeling complexes, and non-coding RNAs to regulate gene expression.
What is the protein synthesizer in all cells?
It is done differently in prokaryotic and eukaryotic cells.Prokaryotic cells just build proteins in their cytoplasm.Eukaryotic cells use organelles called ribosomes.
What do Type 2 alveolar cells secrete?
Type 2 alveolar cells secrete surfactant, a mixture of lipids and proteins that reduces surface tension in the alveoli, preventing them from collapsing. This helps maintain the elasticity of the alveoli and promotes efficient gas exchange in the lungs.
Cells in the Salivary glands and pancreas that secrete large amounts of proteins have a highly developed what?
Cells in the Salivary glands and pancreas that secrete large amounts of proteins have a highly developed rough endoplasmic reticulum (RER). The RER is responsible for the synthesis and packaging of proteins before they are secreted from the cell. This organelle is characterized by the presence of ribosomes on its surface, which are involved in protein synthesis.
