18 Questions
What are some examples of cytoplasmic inclusions mentioned in the text?
Lipid droplets, glycogen, and melanin pigment
What is the function of actin filaments in the cytoskeleton of a cell?
Allowing cell movement
Which component of a eukaryotic cell is described as the most prominent membrane-bound organelle?
Nucleus
What is one of the functions of cytoplasmic inclusions?
Maintain cell shape
What are the three types of cytoskeletal fibers mentioned in the text?
Actin filaments, intermediate filaments, microtubules
Which organelle houses the cell's DNA in the form of chromatin?
Nucleus
What is the function of the nuclear pores in a eukaryotic cell?
To control the exchange of large molecules between the nucleoplasm and cytoplasm
Where is heterochromatin typically located inside the nucleus of a eukaryotic cell?
Adjacent to the nuclear membrane
What is the main function of euchromatin in a eukaryotic cell?
To regulate gene expression through transcription
How are chromosomes classified based on their functions inside a eukaryotic cell?
As heterochromatin and euchromatin
Which structure in a eukaryotic cell is continuous with the endoplasmic reticulum?
Nuclear membrane
What is the matrix present inside the nucleus of a eukaryotic cell called?
Karyoplasms
What is the primary component of a cell membrane based on its composition?
Lipids
Which organelle is a major site for adenosine-triphosphate (ATP) production through aerobic respiration?
Mitochondria
What is the function of the smooth ER within a cell?
Lipid and steroid synthesis
Which cell component carries its own genetic material (DNA)?
Mitochondrion
What makes the plasma membrane semi-permeable, regulating the passage of substances?
Lipid bilayer
Which component of a cell is made up of lipids and proteins, and helps in regulating the passage of substances?
Cell membrane
Test your knowledge on the biochemistry of cell membrane and cytoplasm, including the composition of the cell membrane, the structure of phospholipids, and the semi-permeability of the lipid bilayer.
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