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At what level of organization does life begin?
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What surrounds all cells?
What is semipermeable?
allowing some substances to pass into the cell and blocking others.
What 2 things make up the cell membrane?
phospholipids and embedded proteins
The cell membrane is also called the ----- membrane
Centrioles are found inside of what type of cells?
What additional layer is found around the outside of plant cells and bacteria?
Centrioles are found at the center of the...
How do centrosomes help the cells?
Where is DNA found inside a cell?
What cell process is controlled by the nucleus?
DNA coils tightly during division and assembles into visible...
Where are organelles located?
Where are proteins made in a cell?
Do all cells need ribosomes? Why?
yes because all organisms need to make proteins.
The process of making proteins is called...
How does rough ER differ from smooth ER?
rough er has ribosomes on the surface while smooth er does not.
Rough ER is connected to the ---membrane and to ---ER.
nuclear and smooth
Proteins made by rough ER travel to the Golgi in sacks called ---. Golgi --- and ---proteins for export out of the cell.
cistern, modify, packages
What are Smooth ER jobs?
Make proteins, controls calcium level, detoxifies poisons.
What process takes place inside chloroplasts?
What is the energy for photosynthesis?
What pigment traps the energy?
Chloroplasts are found in what type of cell(s)?
Both chloroplasts and mitochondria are alike in that they both have ---membrane and their own--
double and DNA
Food, water, and wastes are stored inside
Digestion takes place inside---containing---
lysosomes and digestive enzymes
The largest organelle in plants is the...
What organelle breaks down and recyles worn out cells?
Cell membrane: Plant/animal/both
Cell membrane - Function
Provides a boundary between the cell and its environment. Controls what enters/exits cell. Provides protection/support for cell.
cell wall - Function
Surrounds the cell membrane and its contents- give the plant its shape
cytoplasm - Plant/animal/both
cytoplasm - Function
Watery cell fluid that contains the cell organelles-many life processes take place here
vacuole - Plant/animal/both
vacuole - Function
Store water, wastes, and food. Much bigger in plant than animal cells.
ribosome - Plant/animal/both
ribosome - Function
Golgi bodies- Plant/animal/both
Golgi bodies - Function
Synthesize, package, and secrete cell products
rough ER - Plant/animal/both
smooth ER - Plant/animal/both
smooth ER - Function
Makes proteins and lipids that will be exported by the cell, controls calcium level and detoxifies poisons & drugs
central vacuole - Plant/animal/both
central vacuole - Function
Takes up most of the space in plant cells. Store water, wastes, and food
chloroplast - Plant/animal/both
chloroplast - Function
Involved in manufacturing of food (photosynthesis)
mitochondria - Function
Convert energy stored in glucose into ATP
nucleus - Function
Control cell activities
nucleolus - Function
nuclear membrane -Plant/animal/both
nuclear membrane - Function
Materials move from the nucleus to the cytoplasm through nuclear pores in the nuclear membrane
centrosome - Plant/animal/both
centrosome - Function
Makes microtubules, important for cell division
lysosomes - Plant/animal/both
Contain digestive enzymes, breaks down & recycle worn out cells
microtubules - Plant/animal/both
Give the nucleus and cell its shape
nuclear pores -Plant/animal/both
nuclear pores -function
Allows materials to move through nucleus and cytoplasm
Identify the organelle for 92
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Identify the organelle for 100
Identify the organelle for 101
Identify the organelle for 102
Identify the organelle for 103
Identify the organelle for 104
The cell does not use energy. High to low concentration. types - 1.Diffusion , 2.Facilitated diffusion, 3. Exocytosis
The cell uses energy. Low to high concentration. types - 1. Protein pumps, 2. Endocytosis, 3. Exocytosis
diffusion of water through a selectively permeable membrane
cytoplasm of cell surrounds and engulfs large
plasma membrane "pinches in" to permit entry of molecules too large to diffuse through
Semi-permeable membrane (selectively permeable)
-allows some molecules to pass but not others
The concentration of solutes in the solution is equal to the concentration of solutes inside the cell.