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cell science

cell organelle

QuestionAnswer
what is the smallest unit that can perform all the processes necerssary for life? cell
Who was the first person to describe a cell? Hooke
Who was the person that discovered a single-celled organism including bacteria? Leeuwenhoek
Who concluded that all plants parts were made of cells ? Schleiden
Who concluded that all animals tissues were made of cells ? Schwann
Who concluded that all cells come from existing cells ? Virchow
Why ca 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 the volume you calculate the surface area-to -volume ratio ? Divide the total surface area of the cell by the cell's volume
What are the three parts of the cell theory ? all organisms that are made up of one or more cells,the cells in the basic unit of all living things all cells come from existing cells
What kind of cells have the cell walls? plant,fungi have cell wall
What is the protective layer that covers a cell's surface? cell membrane
What fluid is inside the cell?` cytoplasm
What structure performs a specific function in the cell ? organelle
What organelle that contains DNA and has a role in growth ,metabolism and reproduction nucleus
What part do all cells have in common All cells have cell membrane,organelle,cytoplasm and DNA in common
What are the two basic kinds of cells? The two basic parts of the cells are cells without a nucleus,and cells with a nucleus
what are prokaryotes? Prokaryotes are single-celled organisms that do not have a nucleus or membrane bound organelle
What are the most common prokaryotes (and the smallest cell) Eubacteria or bacteria and the smallest cells
What are ribosomes? Ribsomes are tiny round oranelles made of protein and other materials
How do eubacteria and archaebacteria differ? Eubacteria and archaebacteria are different by the eubacteria ribosome
what are three types of archaebacteria? The three types of archaebacteria are heat loving,salt loving,and methane loving
How do eukaryotes compare in size to prokaryotes? They are about the same size
What does a eukaryote have that a prokaryotes does not? cells with DNA
Which of these words describe humans? protist
What does multicellular means? many cells
What is the function of a cell wall? it gives support to a cell
What are the cell walls of plants and algae made of? glycoprotein and polysaccharide
What are the cell walls of fungi made of? glucosamine polymer chitin
What is a cell membrane? a protective barrier that encloses a cell
What are three types of compound contained in the cell membrane? proteins,lipids,posholipds
What two substances control the movement of materials into and out of the cell? Some of the proteins and lipids do control movement of materials into and out of the cell.
What is the web of proteins in the cytoplasm is known as? phospholipids
What are the two functions in the cytoskeleton? holds organelles in place and it enables cell movement
Created by: dalia hernandez