WorksheetsBiology
Total questions: 22
Worksheet time: 23mins
3 parts of a plasma membrane
Charged phosphate group
Glycerol
Lipids
2 fatty acids
The structure of a Plasma Membrane has what 2 parts
Made of Phospholipid Bilayer
Glycerol
2 Layers of lipids + proteins + carbohydrates
Fatty Acids
move needed substances or waste through the membrane
(a)
(a) semifluid material inside the membrane
What does the cytoskeleton do? (2 answers)
Network of protein fibers
Semifluid material in the membrane
Microtubules
Helps the cell maintain it's shape
What containes all the DNA?
Cytoplasm
Fatty Acids
Nucleus
Ribosomes
DNA bound to protein
Chromosome
Chromatin
Ribosome
Cell
Condensed Chromatin
Nucleaus
Microfilaments
Chromosomes
Flagella
Where are proteins assembled (factories)?
(a)
Endoplasmic Reticulum
Membrane system of folded sacs and interconnected channels
Rough ER
Synthesizes Proteins
Smooth ER
Synthesizes Lipids; detoxifies drugs
Golgi Apparatus
Modify, Sort & Package Proteins (FedEx of the Cell)
Vesicles
Membrane bound sacs used for transport - (semi-trucks)
Mitochondria
Converts chemical energy from food into a usable form - (power plant)
Vacuoles
Storage containers - Only found in plant cells
Lysomes
Breakdown lipids, carbs, proteins (Recycling center)
Centrome
Small region of cell that produces microtubles
Centrioles
Short microtubles arragned in a cylindrical tube
What is the rigid layer outside of the cell membrane, provides extra protection, support and shape of the cell? Usually only in plant cells and prokaryotes.
(a)
(Plants only) - What uses sunlight to make food, cellular solar panels
(a)
Passive Transport
No energy required from the cell
Diffusion
Net movement of particles from an area of high concentration to low
Dynamic Equilibrium
Continuous movement of molecules, BUT, no overall change
Facilitated Diffusion
Diffusion through transport proteins
Osmosis
Diffusion of water across a semipermeable membrane
Isotonic
Soln. w/ same concentration of solutes as cytoplasm
Hypertonic
Soln w/ higher concentration of solutes than cytoplams
Hypotonic
Soln w/ lower concentration of solutes than cytoplasm
Active Transport Requires: (3)
Energy
Against concentration gradient
Exocytosis
Molecular Transport - through transport proteins or pumps
2 parts of Active Transport
Osmosis
Endocytosis
Exocytosis
Isotonic
Endocytosis
Taking in material by folding membrane inward
Phagocytosis
Taking in FOOD
Pinocytosis
Taking in LIQUID
Exocytosis
Forcing materials OUT of the cells
Cytoplasm
Semifluid materials inside the membrane
Robert Hook
Coined the term "cell"
Anton von Leeuwenhoek
1st to see microscoptic pond life
Cell Theory
All cells come from preexisting cells
Fluid mosaic model
parts of a cell membrane can slide and move passed each other
Cell membrane
Outer covering of a cell
Both of these have cell membranes and DNA (2 answers)
Plants cells
Prokaryotes
Eukaryotes
Brokaryotes
Fatty Acid Tails
Phospholipid bilayer that repeals wateer
Selective Permiability
cell membranes only allow certain things to pass in and out
Mitochondria
Provides energy to the cell
Nucleus
Cell growth, DNA and reproduction
Cytoplasm
Water based where all organelles are suspended
Cell membrane
Oraganelle that seperates the interior of the cell from the outside
mitochondria
Organelle has it's own DNA stored in it
golgi bodies
Organelle functions to package and deliver proteins
ribosome
Organelle that is a protein factory
a phospholipid bilayer
all organelles are contained in it
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