Terms in this set (44)
Shape of an animal cell
Packages and transports materials out of the cell
Control center of the Cell (contains the DNA)
What are Eukaryotic cells?
Cells with a nucleus
What groups are Eukaryotic cells divided into?
Plants, animals, fungi, protists
Cells are ___% water
Make proteins for the cell
Shape of a plant cell
fluid inside a cell
Located in plant cells, produces photosynthesis
Protective layer around a cell, keeping its structure
Outer most part of the cell that protects the cell (only in plant cells)
Breaks down sugar for energy
Inner part of the nucleus, stores materials and creates ribosomes
Name two ways of moving large particles
What is Endocytosis?
the process by which a cell surrounds a large particle and brings it into the cell
What is Exocytosis?
the process in which a cell releases a large particle by sending it through the cell membrane
Name two ways of moving small particles
Passive transport, active transport
What is passive transport?
the movement of particles across a cell membrane without the use of energy
What is active transport?
the movement of particles across a cell membrane that does require energy
the movement of particles from low concentration to high concentration or to spread apart (does not require energy)
only certain substances can pass through
the diffusion of water through a semipermeable membrane
Name three scientists who contributed to the cell theory
Shleiden, Schwann, Virchow
What did Shleiden contribute to the cell theory?
all plants are made of cells
What did Schwann contribute to the cell theory?
all animals are made of cells
What did Virchow contribute to the cell theory?
all cells can only form from other cells
a cell's internal delivery system
Endoplasmic reticulum (ER)
stores water and materials (plants only)
Improved the microscope, saw tiny organisms swimming in pond scum and called them "animalcules"
Anton van Leeuwenhoek
looked at a piece of cork under microscope, was the first to see cells, developed the term cells because they looked like tiny boxes (prison cells)
Name the three points of the cell theory
All organisms are made up of one or more cells; the cell is the basic unit of all living things; all cells come from existing cells
What are prokaryotic cells?
cells with NO nucleus
Name two types of prokaryotic cells
1. Bacteria (disease causing) 2. Archaea (live in places most organisms will not)
There is limited space on earth so plants and animals ________ for space to live
an organism that can make its own food by using energy from its surroundings
an organism that eats other organisms or organic matter
Plants use _________ and ________ during photosythesis
oxygen, carbon dioxide
an organism that gets energy by breaking down the remains of dead organisms or animals wastes and consuming or absorbing the nutrients
a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body
energy source and form membranes
energy carrying molecule
make up DNA
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