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Cells Study Guide

What is the smallest unit that can preform all the processes necessary for life? A cell
Who was the first person to describe cells? Robert Hooke
Who discovered single-celled organisms that include bacteria? Anton Van Leeuwenhoek
Who concluded that all animal parts were made of cell? Matthias Schleiden
Who concluded that all animal tissues were made of cells? Theodor Schwann
Who concluded that all animal cells come from exiting cells? Rudolf Virchow
Why can't a chicken egg grow so large? It does not have to take in nutrients
What limits most cells to a very small size? The surface area-to-volume ratio of the cell
How would you calculate the surface area-to-volume ratio? Divide the total surface area of the cell by the cell's volume
What are three parts of the cell theory? 1. All organisms are made of one or more cells 2. The cell is the basic unit of all living things 3. All cells come from existing cells
What kind of cells have cell walls? Plants and fungi have cell walls
What protective layer covers a cell's surface? Cell membrane
What is the fluid inside of a cell? Cytoplasm
What is a structure that covers a specific function in cells? Organelle
What is the genetic material that carries information that is needed to make new cells or new organisms? DNA
What organelle contains DNA and has a role in growth, metabolism, and reproduction? Nucleus
What parts do all cells have in common? All cells have cell membranes, organelles, cytoplasm, and DNA in common
What are the two basic kinds of cells? Prokaryotes and eukaryotes
What are prokaryotes? Prokaryotes are single-celled organisms that do not have a nucleus or membrane-bound organelles
What are the most common prokaryotes (and the smallest)? Eubacteria
What are ribosomes? Cell organelle composed of RNA and protein
How do eubacteria and archaebacteria differ?
Created by: 1648164