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CELLS Structure & Function Review
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The ___________ is thebasic unit of life. cell
____________ was the first person to see “cells” under the microscope. Robert Hooke
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What is the function of the cell membrane?
Controls what enters or leaves cell; When DNA is spread out in the nucleus of a cell of non-dividing cells it is called ____________. chromatin
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What is the function of mitochondria?
In 1855 German physician __________________________ saw dividing cells and reasoned that cells come from existing cells. Rudolf Virchow What is the function of mitochondria? Burn glucose and store energy as ATP
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Bacteria are ______________ prokaryotes eukaryotes
This storage space is a ___________. vacuole
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Small structure in a cell that performs a specific function
Tell two of the parts of the cell theory. *All living things are made of cells. *Cells are the basic units of structure & function in an organism * Cells are produced from existing cells. Small structure in a cell that performs a specific function organelle
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In 1838 a botanist named ___________________________ concluded that ALL PLANTS are made of cells.
Matthias Schleiden What does the nucleolus make? ribosomes
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Tell which part does it? Centrioles Lysosomes
Mitochondria Burns glucose ____________________ Controls what enters or leaves the cell ___________________ Pulls chromosomes during cell division __________________ Digests unwanted substances or cell parts _______________ Makes proteins ______________________ Contains chromatin ___________________ Cell membrane Centrioles Lysosomes Ribosomes Nucleus
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An animal cell is a ____________. prokaryote eukaryote
This organelle is the ____________ Rough ER
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Name an organelle that assists in movement.
Dutch microscope maker who 1st saw living cells. Anton van Leeuwenhoek Name an organelle that assists in movement. Cilia or flagella
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Molecule that provides the energy for active transport
This storage space is larger in plants than animals. vacuole Molecule that provides the energy for active transport ATP
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Organelle that acts as the cell’s control center.
Cells that have a cell membrane but NOT a nuclear membrane are ________________ prokaryotes Organelle that acts as the cell’s control center. nucleus
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Phospholipids & proteins
Cell membranes are made of these 2 main kinds of molecules. Phospholipids & proteins Name another kind of molecule that could also be found in an animal cell membrane Steroids(lipids) OR glycoproteins
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nucleolus Dark spot in the nucleus of a cell where ribosomes are made.
Membranes that allow certain molecules to pass through and not others are said to be ___________________ permeable. Selectively OR semi-
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Programmed cell death or “cell suicide” for the good of the organism
Apoptosis Proteins are made on the __________ in a cell. ribosomes
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In what kind of cell would you expect to see chromatin?
dividing non-dividing Non-dividing Thylakoid stacks would be seen inside _____________________ Mitochondria Golgi bodies chloroplasts chloroplasts
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Cell organelles that burn glucose and store energy as ATP.
mitochondria This structure is a __________ flagellum
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Cytoskeleton, cilia, flagella, OR centrioles
Name an organelle that is made of microtubules Cytoskeleton, cilia, flagella, OR centrioles An membrane protein with carbohydrates attached to its surface that functions in cell identification is called a ____________________ glycoprotein
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Name an organelle besides the nucleus that has DNA
Mitochondria OR chloroplasts Tell one difference between cilia and flagella. Cilia- several, shorter Flagella-one or two, longer
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Tell which part does it? chromatin Rough ER
Makes lipids for membranes ____________________ Makes ATP ___________________ Spread out DNA __________________ Modifies & transports proteins made on its ribosomes ________________________ Regulates calcium levels in muscle cells ________________ Supports and protects plant cells ___________________ smooth ER Mitochondria chromatin Rough ER Smooth ER Cell wall
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Membrane bound sac that contains digestive enzymes.
Endoplasmic reticulum with ribosomes attached is called _________ ER. rough Membrane bound sac that contains digestive enzymes. lysosome
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This organelle makes ATP.
mitochondrion Because the phospholipids in a cell membrane form 2 layers it is called a _____________. bilayer
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Called the “power plant” of the cell because it makes energy
Tell one way plant cells are different from animal cells. Plant cells have a cell wall and animal cells don’t. Plants have larger vacuoles. Plants have chloroplasts and animal cells don’t Called the “power plant” of the cell because it makes energy mitochondrion
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This organelle contains the molecules for photosynthesis.
Tell one way bacteria are different from animal cells. Bacteria don’t have a nuclear membrane and animal cells do. Bacteria have a cell wall and animal cells don’t. This organelle contains the molecules for photosynthesis. chloroplast
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smooth _________ ER does NOT have ribosomes attached The _______________ is made of microfilaments and microtubules and helps the cell to maintain its shape. cytoskeleton
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The yellow part of this phospholipid molecule stays on the outside of the bilayer next to the water environment because it is ______________. polar nonpolar polar
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Pancake-like stack of membranes that modify, sort, &package substances
What is the job of the ribosomes? Make proteins Pancake-like stack of membranes that modify, sort, &package substances for transport. Golgi body
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Name a cell part that has this 9 + 2 arrangement of microtubules
Cilia OR flagella Organelle in a plant or animal cell that contains the cell’s genetic material. nucleus
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Ribosomes are made of __________ & __________
The folded inner membrane in the mitochondria which help to increase the surface area for chemical reactions is called the _______________. cristae Ribosomes are made of __________ & __________ Protein RNA
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Tell which part does it? flagella cristae
Contains genetic info __________________ Give cell shape/support ____________ Few, long structures for locomotion __________________ Provide more surface area inside mitochondria _________________ Place for photosynthesis __________________ Large storage space ___________________ nucleus cytoskeleton flagella cristae chloroplast vacuole
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What is the function of the Rough ER?
Modify and transport molecules made by its ribosomes This organelle is a _____________ Golgi Body
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A plant cell is a ______________. prokaryote eukaryote
Tell one way plant cells and animal cells are alike. Both are eukaryotes. Both have a nuclear & cell membrane. Have most of same organelles (except cell wall and chloroplast)
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Cells that have a nuclear membrane are called ________________
The many short structures on the top of this cell are __________ cilia Cells that have a nuclear membrane are called ________________ eukaryotes
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The cytoskeleton is made of ______________ & ______________
The organelle that regulates calcium in muscle cells, makes lipids for membranes, and breaks down toxins in liver cells is the ____________________ Smooth ER The cytoskeleton is made of ______________ & ______________ Microfilaments microtubules
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The blue part of this phospholipid molecule stays inside away from water because it is ______________. polar nonpolar Non polar
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Theodor Schwann What do ribosomes make?
In 1839 a Zoologist named _________________________ concluded that ALL ANIMALS are made of cells Theodor Schwann What do ribosomes make? proteins
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A B C D E A = ________________ B = ________________
Cell membrane Rough ER nucleus Golgi Body Mitochondrion
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Tell which part does it? Cilia or flagella Golgi bodies
Mitochondria Makes ATP ____________________ Controls what enters or leaves the nucleus _________________ Help cell move __________________ Modify, sort, & package substances for transport _________________ Makes ribosomes ______________________ Control center of cell ___________________ nuclear envelope Cilia or flagella Golgi bodies nucleolus Nucleus
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Put in order of increasing size:
Organ cell organ system organism tissue _______ _________ _________ _____________ ______________ organ cell tissue Organ system organism
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FALSE; All cells have a cell membrane on the outside
True or False Bacteria don’t have a CELL membrane. FALSE; All cells have a cell membrane on the outside Name one of the functions of Smooth ER Make lipids for membranes, regulate calcium levels, Break down toxic substances
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Name an organelle besides the cell nucleus that has its OWN DNA
Mitochondria OR chloroplasts A group of cells that work together to carry out a specific function are called a _______________ tissue
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Plant cells don’t have centrioles
True or False Bacteria don’t have ribosomes. False; Yes, they do Ribosomes aren’t made of membranes True or False Plant cells don’t have centrioles True; at least we can’t see them
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Mitochondria OR chloroplasts
Name an organelle besides the cell nucleus that is surrounded by a DOUBLE membrane Mitochondria OR chloroplasts A group of organs that work together to carry out a specific function are called an _______________ Organ system
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You would expect to see cristae inside a ________________
Centrioles are only seen in __________________________ cells. Dividing animal You would expect to see cristae inside a ________________ mitochondrion
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Endoplasmic reticulum without ribosomes attached is called
Cells that need a lot of energy probably have a lot of ______________ Golgi bodies Smooth ER mitochondria centrioles mitochondria Endoplasmic reticulum without ribosomes attached is called _____________________ Smooth ER
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concentration of molecules across
The difference in the concentration of molecules across a space is called a ______________________ Concentration gradient
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This cell is in a _______________ solution. isotonic
It will probably ________________ shrink swell & burst stay the same size Stay the same size
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This cell is in a _______________ solution. hypertonic
It will probably ________________ shrink swell & burst stay the same size Shrink
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This cell is in a _______________ solution. hypotonic
It will probably ________________ shrink swell & burst stay the same size swell and burst
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When you sit in the bathtub, your fingers get wrinkly because of the water entering your skin cells. The bathtub water is a ____________ solution compared to your skin cells hypotonic Hypotonic isotonic hypertonic
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endocytosis This type of transport is called _______________
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ACTIVE ____________ transport can move molecules AGAINST the concentration gradient. Active Passive When you mix iodine with ____________ you will see a black/purple color change. starch
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The shrinking of plant cells in a HYPERTONIC solution is called
______________ plasmolysis This cell is in a _______________ solution. hypotonic isotonic hypertonic HYPOTONIC
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___________ transport does NOT require energy to move molecules.
Passive ___________ transport does NOT require energy to move molecules. Kind of transport used by ions like Ca+ + , Cl - , Na+ , and K + to move across cell membranes Ion channels (Na+ and K + can also move by the Na+ - K + pump)
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Cell wall is sturdy & holds shape
The proteins in a cell membrane that help move molecules across the membrane are called __________ proteins. What keeps plant cells from undergoing bursting in hypotonic environments? _____________ carrier Cell wall is sturdy & holds shape
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Name the 4 kinds of passive transport
Name a kind of transport that uses carrier proteins to help molecules move across membranes Facilitated diffusion, ion channels, OR Na+-K+ pump Name the 4 kinds of passive transport Diffusion Osmosis facilitated diffusion ion channels
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selectively permeable
A membrane that lets certain molecules pass through and not others is called _______________ Semi permeable OR selectively permeable
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Pinocytosis, phagocytosis, Exocytosis, endocytosis
Name a kind of transport that uses vesicles to move substances across a membrane Pinocytosis, phagocytosis, Exocytosis, endocytosis Name the kind of transport that moves WATER across cell membranes OSMOSIS
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What will happen to this freshwater fish?
There are fewer molecules in fresh water than in the bodies of animals that live in there. What will happen to this freshwater fish? Freshwater fish live in a HYPOtonic environment. Water will move INTO the fish and it must urinate frequently to maintain its water balance. (HOMEOSTASIS)
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Diffusion continues until the concentration of molecules is equal throughout the space. This is called ___________________ equilibrium
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Type of endocytosis in which cells take in small molecules or fluids
Which organelle makes the ATP used to run the Na + -K+ pump? mitochondria Type of endocytosis in which cells take in small molecules or fluids pinocytosis
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From the lungs into the blood
The white circles stand for oxygen molecules. Use what you know about diffusion of molecules to predict which way the oxygen will move. From the lungs into the blood
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The energy for active transport comes from this molecule
The type of transport that moves substances OUT of cells is called ______________ exocytosis The energy for active transport comes from this molecule ATP
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isotonic It will probably __________________
This cell is in a __________________ solution. isotonic It will probably __________________ Undergo cytolysis Undergo plasmolysis stay the same size stay the same size
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The pressure of water exerts in a cell during osmosis is called ________________ pressure.
LABEL THE DIAGRAMS; OSMOTIC HYPERTONIC ISOTONIC HYPOTONIC
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Putting plant cells into a
HYPOTONIC solution will cause water to ____________________________________ enter cell leave cell This will cause a(n) ___________ in osmotic pressure. Enter cell increase
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Putting plant cells into a
HYPERTONIC solution will cause water to ____________________________________ enter cell leave cell This will cause a(n) ___________ in osmotic pressure. Leave cell decrease
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Name the Cell GUY Matthias Schleiden German physician who saw
dividing cells and concluded all cells come from existing cells _____________ German botanist who concluded all plants are made of cells ___________________ Dutch microscope maker who 1st saw living cells __________________ Rudolf Virchow Matthias Schleiden Anton van Leeuwenhoek
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Name the Cell GUY Robert Hooke German zoologist who
concluded all animals are made of cells _______________________ English scientist who 1st saw “little boxes” in cork and called them cells ___________________ Theodor Schwann Robert Hooke
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Tell if the transport is ACTIVE or PASSIVE
Facilitated diffusion ___________________ Osmosis ____________________ Na + - K+ pump ____________________ Diffusion ____________________ Endocytosis _______________________ Exocytosis ________________________ Ion channels ________________________ PASSIVE PASSIVE ACTIVE PASSIVE ACTIVE ACTIVE PASSIVE
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Tell if the transport uses
Vesicles Carrier proteins Needs NO HELP Facilitated diffusion ___________________ Osmosis ____________________ Na + - K+ pump ____________________ Diffusion ____________________ Endocytosis _______________________ Exocytosis ________________________ Ion channels ________________________ Carrier protein Needs no help Carrier protein Needs no help Vesicle vesicle Carrier protein
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Ion channel Match the picture with the kind of transport
Ion channel Membrane proteins make a passageway through the membrane for ions Name a substance that in transported in this way Cl- , Ca+ + , Na+ or K + ions
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diffusion osmosis Match the picture with the kind of transport
Molecules move across membrane without help from carrier proteins or vesicles If the molecule moving is oxygen or carbon dioxide this would be called ____________________ If the molecule moving is water this would be called __________________ diffusion osmosis
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Na+ - K + pump Na+ or K + ions
Match the picture with the kind of transport Na+ - K + pump Energy from ATP is used to move Na + ions OUT OF and K + ions INTO the cell Name a substance that in transported in this way Na+ or K + ions
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ENDOCYTOSIS Match the picture with the kind of transport
Substance is transported INTO cell inside a vesicle If what is moving into the cell are small molecules or fluids this would be called __________________ PINOCYTOSIS
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EXOCYTOSIS Golgi Bodies Match the picture with the kind of transport
EXOCYTOSIS Substance in put in a Vesicle and transported up to the cell membrane and released OUTSIDE INSIDE OUTSIDE CELL CELL Name an organelle that uses this kind of transport Golgi Bodies
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Facilitated diffusion
Match the picture with the kind of transport Facilitated diffusion Carrier protein grabs molecule, changes shape, and flips it to the other side Name a molecule that moves into cells this way glucose
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ENDOCYTOSIS Match the picture with the kind of transport
ENDOCYTOSIS Substance is transported INTO cell inside a vesicle If the green square above is a large molecule or a whole cell this would be called __________________ PHAGOCYTOSIS
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Tell the kind of transport used by each
Glucose ___________________ Oxygen & carbon dioxide _______________ Na + and K+ ions ____________________ Na +, K+ Cl -, & Ca ++ ions_______________ water _______________________ Large molecules & whole cells____________ Small molecules & fluid _______________ Used by Golgi to transport molecules OUT of cell ___________________________ Used by white blood cells to engulf and destroy bacteria _____________________ Facilitated diffusion Simple diffusion Na + – K+ pump Ion channels osmosis Phagocytosis Pinocytosis Exocytosis Phagocytosis
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