18 Questions
What is the function of the inner membrane folds called cristae in a mitochondrion?
Increase surface area
Where are chloroplasts typically found?
In plants and algae
Which characteristic supports the endosymbiont theory regarding the evolutionary origins of mitochondria and chloroplasts?
Having similarities with bacteria
What is a key feature that distinguishes eukaryotic cells from prokaryotic cells?
Containment of DNA in a nucleus
Which organelle is responsible for using solar energy to synthesize carbohydrates?
Chloroplast
Why is the matrix of a mitochondrion important?
It assists in carbohydrate breakdown
Which component of the cytoskeleton is described as a ropelike assembly and runs from the nuclear envelope to the plasma membrane?
Intermediate filaments
Which motor protein is instrumental in muscle contraction by interacting with actin?
Myosin
What is the primary function of microtubules within the cell?
Move organelles and materials within the cell
What is the major extracellular component found in animals that provides support and varies in flexibility depending on the tissue?
Collagen
How do cilia differ from flagella in terms of structure and function?
Flagella are shorter and more numerous than cilia
Which structure with nine triplets of microtubules arranged in a ring is only found in animal cells and plays a role in cell division?
Centrioles
What is the primary function of the mitochondria in a eukaryotic cell?
ATP production
Where are ribosomes responsible for protein synthesis found in eukaryotic cells?
Cytosol and endoplasmic reticulum
What is the evolutionary origin of mitochondria and chloroplasts in eukaryotic cells, according to the endosymbiont theory?
Engulfed prokaryotic cells
Which organelle is responsible for capturing light energy and converting it into glucose in plant cells?
Chloroplasts
What is the function of the cytoskeleton in a eukaryotic cell?
Cell shape support and intracellular transport
Which organelle is responsible for generating most of the ATP in a eukaryotic cell through cellular respiration?
Mitochondria
Test your knowledge on the components of the cytoskeleton: microtubules, intermediate filaments, and microfilaments. Learn about the structure and functions of each component.
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