The question asks about the primary function of lysosomes, which are organelles found in eukaryotic cells. To answer this, we need to recall the specific roles of different cellular organelles.
Correct Option: C) Intracellular digestion. Lysosomes are often called the "suicide bags" of the cell because they contain powerful digestive enzymes that break down waste materials and cellular debris, performing intracellular digestion.
The question asks to identify the organelle with which the tonoplast is associated. This requires knowledge of cell biology, specifically the structure and components of various cell organelles.
Correct Option: B) The tonoplast is the membrane that encloses the vacuole, particularly prominent in plant cells. It regulates the transport of substances into and out of the vacuole, maintaining its internal environment and turgor pressure.
The question asks to identify the organelle responsible for oxidative phosphorylation. This process is a key part of cellular respiration, generating the majority of ATP in aerobic organisms. We need to recall the primary functions of each given organelle.
Correct Option: D) Mitochondrion is the organelle that contains the enzymes and machinery necessary for oxidative phosphorylation, the final stage of aerobic cellular respiration where most ATP is produced.
The question asks about the specific storage function of amyloplasts. To answer this, we need to recall the different types of plastids and their respective storage roles within plant cells.
Correct Option: C) Starch — Amyloplasts are a type of leucoplast, which are non-pigmented plastids. Their primary function is the synthesis and storage of starch. They are commonly found in storage tissues of plants, such as roots and tubers.
The question asks about the type of ribosomes found in prokaryotic cells. Ribosomes are essential cellular organelles responsible for protein synthesis. Their classification, often denoted by 'S' (Svedberg unit), relates to their sedimentation rate during centrifugation, which is influenced by their size and density.
D) 70S — Prokaryotic cells are characterized by the presence of 70S ribosomes, which are crucial for their protein synthesis.
The question asks about the primary function of the cytoskeleton in a cell. To answer this, recall the basic roles of major cellular components.
C) Mechanical support and shape — The cytoskeleton, composed of protein filaments, provides structural integrity to the cell, helps maintain its characteristic shape, and resists mechanical stress. It also plays a role in cell movement and intracellular transport.