12 Questions
What is a defining characteristic of viruses?
They contain either DNA or RNA
Which virus is responsible for causing AIDS?
HIV virus
What is the role of chloroplasts in cells?
Absorb sunlight for photosynthesis
Which statement about cell membrane permeability is true?
Cell membrane controls what enters and leaves the cell
What is a key difference between unicellular and multicellular organisms?
Multicellular organisms are made of collections of cells
What is the main function of the nucleus in a cell?
Contains genetic material that controls cell function
What is the function of a vacuole in a cell?
Contains cell sap and helps support the shape of the cell
Which organelle is responsible for protein production in a cell?
Ribosomes
What is the main function of a mitochondrion in a cell?
Site of aerobic respiration
What is the function of a cell wall in plant cells?
Gives shape and protection to the cell
Where do chemical reactions take place in a cell?
In the cytoplasm
Which organelle is responsible for transporting substances between cells?
Vesicles
Explore the key characteristics of viruses, such as being parasitic, reproducing inside living cells, and lacking cellular structure. Learn about the different shapes, sizes, and nucleic acid content of viruses through examples like the tobacco mosaic virus.
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