Cell membrane: The semi-permeable phospholipid bilayer that controls substance entry and exit, maintaining the internal environment of the cell.
Nucleus: The organelle containing genetic material and controlling cell activities through regulation of gene expression.
Mitochondria: The powerhouse of the cell responsible for ATP production through aerobic respiration.
Ribosomes: Cellular structures where protein synthesis occurs, translating genetic information into polypeptides.
Endoplasmic reticulum (ER): A network involved in protein and lipid synthesis, divided into rough ER (with ribosomes) and smooth ER (without ribosomes).
1. Which key feature best characterizes mitochondria within the cell?
2. What is the primary function of mitochondria within eukaryotic cells?
3. What is a gene in the context of genetics and inheritance?
Cell membrane — role?
Controls substance entry and exit.
Cell membrane — role?
Controls substance entry and exit.
Gene — function?
Codes for specific proteins or traits.
Nucleus — function?
Contains genetic material, regulates activities.
Mitochondria — role?
Produce ATP via aerobic respiration.
Ribosomes — function?
Synthesizes proteins.
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