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What is the function of the nucleolus within the nucleus?
️️ The nucleolus is responsible for the production of ribosomal RNA (rRNA) and assembling
ribosomes.
What is the difference between passive and active transport across the cell membrane?
...
What is the function of the nucleolus within the nucleus?
✔️✔️ The nucleolus is responsible for the production of ribosomal RNA (rRNA) and assembling
ribosomes.
What is the difference between passive and active transport across the cell membrane?
✔️✔️ Passive transport does not require energy and moves substances down their concentration
gradient, while active transport requires energy to move substances against their gradient.
What is the function of vacuoles in plant cells?
✔️✔️ Vacuoles store water, nutrients, and waste products, and help maintain cell structure in plant
cells.
What is the primary function of centrioles in animal cells?
✔️✔️ Centrioles help organize the microtubules during cell division, facilitating the formation of the
mitotic spindle.
What is the role of the cytoskeleton in a cell?
✔️✔️ The cytoskeleton provides structural support, facilitates movement, and helps in cell division.
What is the function of the mitochondria in the cell?
✔️✔️ Mitochondria generate ATP through cellular respiration, providing energy for the cell.
What is the purpose of the smooth endoplasmic reticulum (ER)?
✔️✔️ The smooth ER synthesizes lipids, detoxifies harmful substances, and stores calcium ions.
How do eukaryotic cells differ from prokaryotic cells?
,✔️✔️ Eukaryotic cells have a nucleus and membrane-bound organelles, while prokaryotic cells lack
these structures.
What process occurs in the mitochondria to produce ATP?
✔️✔️ Cellular respiration occurs in the mitochondria, where glucose is broken down to produce ATP.
What is the function of the cell’s ribosomes?
✔️✔️ Ribosomes are responsible for translating mRNA into proteins during protein synthesis.
What type of cell contains a large central vacuole?
✔️✔️ Plant cells contain a large central vacuole that helps with water storage and maintaining cell
turgor pressure.
How do lysosomes aid in cell maintenance?
✔️✔️ Lysosomes contain digestive enzymes that break down waste materials, cellular debris, and
foreign substances.
What is the role of the Golgi apparatus in a cell?
✔️✔️ The Golgi apparatus modifies, sorts, and packages proteins and lipids for transport or secretion.
What is the purpose of the plasma membrane’s cholesterol molecules?
✔️✔️ Cholesterol molecules in the plasma membrane help maintain membrane fluidity and stability.
What is the function of the peroxisomes in a cell?
✔️✔️ Peroxisomes break down fatty acids and detoxify harmful substances like hydrogen peroxide.
What is the role of cilia and flagella in cells?
✔️✔️ Cilia and flagella help with movement of the cell or movement of substances across the cell
surface.
, What is the function of the extracellular matrix?
✔️✔️ The extracellular matrix provides structural support, helps in cell communication, and anchors
cells to their surroundings.
What is the primary difference between plant and animal cells in terms of organelles?
✔️✔️ Plant cells contain chloroplasts and a large central vacuole, which are not present in animal
cells.
What is the function of the tight junctions in animal cells?
✔️✔️ Tight junctions seal adjacent cells together to prevent leakage of fluids between them.
Which of the following is not a type of natural lipid?
A.
Supersaturated
B.
Polyunsaturated
C.
Saturated
D.
Unsaturated ✔️✔️Correct answer: Supersaturated
There are three types of natural lipids: unsaturated, polyunsaturated, and saturated. Supersaturation is
a not a naturally occurring lipid.
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