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Biology 7

biology

QuestionAnswer
What is chemical composition? when all the cells are the same
Name the common characteristics of all cells: cell membranes DNA
What is the difference between prokaryotic and eukaryotic cells? Pro: have no membrane, organelles, and nuclear membrane Eu: contain the above
What are the 2 main parts of a eukaryotic cell? nucleus cytoplasm
Where is a cell wall found? plants, algae, fungi, and many prokaryotics
What do cell walls allow to pass through? water, oxygen, & carbon dioxide
The secondary cell wall of a woody stem plant is made of what? cellulose & lenticels
In 1831 who identified the nucleus and knew its importance? Robert Brown
What does the nuclear envelope contain which allows material to move into and out of the nucleus? nuclear pores
What is the form that chromatin takes when the cell divides? chromosomes
Name the theory that states: During evolution prokaryotic cells were engulfed by other cells to become the ancestors of eukaryotic cells: Symbiotic Theory
Who was the American biologist who suggested the the Symbiotic Theory? Lynn Margulis
What is some of the evidence that led to the Symbiotic Theory? -chloroplast and the mitochondria have their own DNA, RNA, & ribosomes
What is cilia? small hair-like projections from the cell membrane
What is a flagella? a tail-like structure that allows for locomotion
What lines the stacks of inner membrane that trap light energy and contain chlorophyll called? grana-prate
What is the fluid that surrounds grana and where glucose is produced called? stroma
Created by: abbieb
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