12 Questions
According to the theory of panspermia, how did the evolution of life on Earth potentially begin?
With the arrival of complex organic molecules on meteors or cosmic dust
What recent findings support the idea that some meteorites may have carried organic materials?
Discovery of fossils on Mars
How do most scientists view the hypothesis that an early source of carbonaceous material is extraterrestrial?
They find it testable but unproven
Which moon is mentioned in the text as having liquid water beneath its surface?
Europa
What force does the theory of spontaneous origin propose as leading to life from inanimate matter?
Selection
What is NASA planning to do in relation to Europa to explore the possibility of life?
Land on Europa, drill through the surface, and send a probe down
What is the primary function of the cell wall in plant cells?
To provide a rigid structure and maintain cell shape
Which organelle is responsible for generating the majority of the cell's energy in the form of ATP?
Mitochondrion
What is the primary function of vacuoles in plant and animal cells?
To store water, nutrients, and waste products
Which organelle is responsible for sorting, packaging, and secreting cellular products?
Golgi apparatus
What is the primary function of lysosomes in cells?
To digest excess or worn-out organelles and engulfed pathogens
Which organelle is primarily involved in the formation of the spindle fibers during cell division?
Centrioles
Test your knowledge on the different organelles in a cell and their functions. Learn about the roles of cell wall, mitochondrion, vacuole, Golgi Apparatus, lysosomes, and more.
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