Honors Biology Unit 2 Study Guide with Questions and Correct Answers
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Course
Honors Biology
Institution
Honors Biology
Two main ideas contained in the cell theory -cells come from other living cells via reproduction -cells are the basic unit of structure and function for all living things
The role the surface area plays in the exchange of materials between the cell and its environment for a cell: the membrane -any...
Honors Biology Unit 2 Study Guide with
Questions and Correct Answers
Two main ideas contained in the cell theory ✅-cells come from other living cells via
reproduction
-cells are the basic unit of structure and function for all living things
The role the surface area plays in the exchange of materials between the cell and its
environment ✅for a cell: the membrane
-anything the enters or leaves the cell must pass across the cell membrane
Prokaryotic ✅-have nucleus
-DNA is in the cytoplasm
-found in single-celled organisms
-only organelles are ribosomes
Eukaryotic ✅-contain a nucleus
-DNA is in the nuclear membrane
-Found in multicellular organisms
-contain other organelles
Centrioles ✅rod-like structures made of microtubules; found in eukaryotic cells;
important in cell division (arrance spindles that pull chromosomes apart in in mitosis);
position of centrioles determine position of nucleus
Chloroplast ✅site of photosynthesis; photosynthesis occurs in the internal membrane
of the organelle
Cytoskeleton ✅framework of the cell that lends support and defines its shape; plays
important role in intercellular movement and movement of substances, also in cell
division
Golgi apparatus ✅processes and packages proteins; receives proteins from the rough
ER; packages the proteins into vesicles and sends them to the right place
Lysosomes ✅breaks down and recycles old molecules; have digestive enzymes that
break down old molecules into parts that can be recycled
Mitochondria ✅organelle in which energy is generated; cellular energy is produced;
provides energy needed to power chemical reactions; cellular respiration (produces
energy in the form of ATP)
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