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75 Cards in this Set
- Front
- Back
- 3rd side (hint)
7 Characteristics of living Things
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Organization, Responsiveness, Homeostases, Energy utilization, Reproduction, Evolution Adaptation, Growth change and development
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Levels of Organization
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molecule
Organelle Cell Tissue Organ Organ system organism population community Ecosystem |
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Eubacteria
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True bacteria, most diverse and widespread prokaryotes, tiny unicellular lack nucleus, absorb food
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Archaebacteria
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Consist of prokaryotes, live in the Earth's extreme environment, among earth's first inhabitants
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Protista
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unicellular eukaryotes and their relatively simple multicellular relatives. Have nucleus
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Fungi
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Decomposers, cell walls made of chitin
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Plantae
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carry out photosynthesis, produce own food and sugars, cell walls made of cellulose, don't move.
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Anamilia
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Obtain food from others by ingestion, lack cell walls, normally can move.
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Covalent Bond
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Involves sharing of electrons, is responsible for water having the properties of cohesion and high specific heat.
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Hydrogen bond
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A weak interaction, constantly breaks and reforms.
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Carbohydrate
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Starch, both a fuel and building material.
fuel=sugars. storage= starch in plants, or Glycogen in animals. Stuctural= Cellulose in cell walls of plants, chitin in cell walls of fungus and exoskeletons of crustations and arthropods. |
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Lipid
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Faty acids, saturated and unsaturated.
Triacylglycerol= fat, made up of a glycerol back bone and 3 fatty acids, function storage of energy. Phospholipid, made up of glycerol back bone, 2 fatty acids, and one phosphate, function makes cell membrane. Steriod, function in membrane and makes hormones. |
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Protein
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Enzyme, Amino Acids.
Stucture, Storage, Movement, Transport. |
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Nucliec Acid
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DNA,3 parts, Nitrogenous base, Sugar, phosphate group. G,C,A,T.
RNA, U replaces T. |
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Dehydration Synthesis, Hydrolysis
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Remove water to create a covalent bond, breaks bond by adding water.
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The Cell Theory, 3 points
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1. All living things are conposed of 1 or more cells.
2. the cell is the smallest living unit. 3. Cells arise from division of pre-existing cells |
1. all living cells are composed of...
2. smallest living unit 3. cells arise from... |
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4 Features shared by all cells
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1. Cell Membrane
2. contain Cytosol 3. Contain DNA 4. All cells have ribosomes |
1. Surrounded by this
2. Filled with this 3. In the nuclus and makes us who we are 4. Make proteins |
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Two major types of cells
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1.Prokaryotic
2.Eukaryotic |
1.lack membrane bound nucleus include Eubacteria and Archbacteria
2. Have a membrane bound nucleus, include plantea, anamilia, fungi, and protista |
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Prokaryotic Cells
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1. very small
2. meny have capsules, pili, flagella,cell walls, plasma membrane, Ribosomes, cytosol, Nucleoid 3. No nucleaus, organelles, cytoskeleton |
1. Feature (what it looks like)
2. What it has 3. whats absent |
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Eukaryotic Cells
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1.larger and more stucturally complex
2.membrane bound nucleus, cytoplasm with cytosol and organelles, cytoskeleton |
1.feature
2. makes it different from prokaryotic cells, 2 things inside, internal scaffolding and support framework |
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Distinguishing Features of Animal cells
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1. Nucleous
2. lots of organelles 3. Cytoskeleton 4. No cell wall 5. no chloroplasts 6. No central Vacuole |
1. contorl center
2. lots of these (general) 3. internal scaffolding 4. doesn't have this protective layer 5. not green 6. doesn't have this storage place |
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Distinguishing features of Plant cell
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1. Cell wall
2. central vacuole 3. chloroplast 4. nucleus 5. organelles 6. cytoskeleton 7. Lack contriole |
1. out most layer of protection
2. storage area 3. green 4. control center 5. lots of these (general term) lack this |
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Disinguishing features of fungal cells
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1.Cell wall
2.plasma membrane 3. nucleus 4. organelles 5. cytoskeleton 6. no central vacuole 7. no chloroplast |
1. made of chitin
2. phospholipids make this up 3. control center 4. general term 5. internal scaffolding 6. lack storage 7. not green |
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Nuclear Envelope
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1. double membrane and space in the middle
2.periforated with pores |
1. ____ ___ & ___ in the ____
2. _____ with _____.... how things get in and out |
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Nucleous
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1. darkly stained region in nucleous region in the middle
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1. _____ ____ _____ in __ ___ in the _____
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Nucleoplasm
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1. Where ribosomes are assembled
2. Gel like interior |
1. these are made here
2. nucleoplam made of... |
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DNA
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1. packaged in nucleus
2. DNA+Protein= Chromosome |
1. how is it organised in nucleus
2. ____ + ___ = ________ |
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Non Dividing cells
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1. loose coils
2. chromatid |
1. tight or loose coils
2. called |
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Dividing cells
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1. Tight coils
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1. tight or loose coils
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Chromosome structure
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1. DNA wrapped around histone
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1. DNA wrapped around a protein...whats the name of the protein
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Endoreticulum
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net work of membrane tubes and sacks
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Rough ER
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has ribosomes on surface
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Smooth ER
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1.lacks ribosomes
2 lipd synthesis, detixification, involved in metabloism |
1. looks
2. 3 functions |
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Golgi Apparatus
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modifies sorts and pacakges molecules
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function
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The Endomembrane System
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the role of this system is secretion
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role
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The secretoy pathway
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1. Proteins synthesized by RER ribosomes
2. Protein injected into interior of RER (lumen) and packaged into transplant vesicals 3. proteins reach the golgi and are modified and sorted 4. secretory vesicles containing proteins bud from golgi 5. proteins are expelled from the cell |
1. proteins ____ by _ _ _ _____
2.proteins ____ into ____ of _ _ _ ( ____ ) & ____ into _____ ______ 3 ____ reach the ___ and are ____ & _____ 4. _____ ____ ____ ____ bud from _____ 5. _____ are ____ from the ____ |
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Lysosomes
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1. membrane bond vesicles
2. contain a group of enzymes that break down food and other substances |
1. bound by this
2. contains Acid Hyrolases that do this |
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Peroxisomer
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1.membrane bond sac
2. Enzyme break down hydrogen peroxide |
1. bound by this
2. has enzymes that do tihs |
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Mitochondria
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1. surrounded by 2 membranes
2. power house produced ATP |
1. outer membrane and inner membrane
2. function |
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chloroplasts
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1. plant organelle called a plastid.
2. two membranes 3. contains chlorophil |
1. plant organelle called a
2. ___ membranes 3. contains this which is responsible for photosynthesis |
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cytoskeleton
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1. motility, and support
2.microtubule, microfiliment, intermediate filament |
1. 2 functions
2. 3 types of internal scaffolding |
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Microtubule
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1. Transport vesicle
2. form spindle fibers, cilia and flagella |
1. hollow tube function
2. forms 3 things |
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Microfilament
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1. solid slender rods
2. general support and keeps shape 3. muscle contraction 4. pinching of cytoplasim |
1 looks
2 function 2 3 helps with this (muscles) 4 responsibel for this during cytokinesis |
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Intermediate Filament
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1. stable robs
2. strength and support |
1. looks, very strong fibers
2 functions |
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centrosome and centrioles
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involved in forming spindle during cell division
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function
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The cell cycle
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life of a cell from time formed until it divides
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mitosis
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division of nucleus
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cytokinesis
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division of the cytoplasm
Starts at the end of telophase |
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interphase
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longest phase, includes G1, S and G2
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G1 (Gap 1)
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Growth phase
metablolizing |
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S (Synthesis)
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DNA synthesis, DNA replication
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G2 (gap 2)
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Growth
protein synthesis preparing to divide |
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Prior to Mitosis:Interphase
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1. DNA exsist as duplication chromosomes
2. chromosomes appear threadlike mass called chromatin |
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4 phases of mitosis
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1. Prophase
2. metaphase 3. anaphase 4. telophase |
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Prophase
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1. Nuclear envelope dissapear
2. Nucleous disappear 3. centrosomes migrate to opposite poles, spindle fibers form 4. Chromosomes are condensing |
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Metaphase
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1. chromosomes align on equator
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Anaphase
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1. centromere slpits
2 sister chromatidz pulled to opposite poles by spindle fibers |
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Telophase
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(opposite of prophase)
1. Nulclear envelope reappear 2. Nucleolus reappear 3. spindle fibers dissapear 4. Chromosomes uncoil and become thread like again |
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Cytokinesis in plant cells
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cell plate forms, new cell wall forms from that splitting cell into 2
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Cleavage Furrow
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pinching of cell membrane to make two dughter cells
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membrane Structure
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1. Lipids
2. Proteins 3. CArbohydrates |
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membrane Stucture: Lipids
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Phospholipid
contains glycerol backbone, 2 fatty acids and 1 phosphate group head=phosphate=hydrophilic tails=fatty acids=hydrophobic arrangment bilayer also cholesterol inserted among phospholipids |
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Membrane stucture: Protein
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two types
integral-embedded in membranes, most go from one side to the other peripheral-dissociated with both outer and inner surfaces |
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Membrane Stucture: Carbohydrates
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Associated with the outside
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Glycocalyx
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sugar rich zone
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Hypotonic in animal cells
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lower water level and higher solute levels (inside) water diffuses in and cell will swell and burst
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Hypertonic, in animal cells
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high water and low solute levels inside water diffuses out cell shrinks
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Isonic
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same or equal levels in and out, cell shape is maintained
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Hypotonic
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low water high solute(inside) water enters. cell will swell vacuole fills with water pushes against plasma membrane (calld turgor pressure) limits further entrance of water
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hypertonic
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high water low solute in cel water leaves, vacuole shrinks membrane with draws from cell wall (plasmolysis)
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Iotonic
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Equal and opposite
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Faciliated Diffusion
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"helpers" integral membrane protiends.
2 tyeps channel protein transport proteins or carriers (passive- high to low concentrate |
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Active Transport
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Require energy
against concentrate gradient low-high (uphill) |
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active transport: Endocytosis
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Uptake of larger substances into the cell- enter by vesicles
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Endocytosis: Phagocytosis
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"cell eating"
extensions of cytoplasm called pseudopods surrond particle and enclose in on a vesicle vesicle have lysomes will digest particles |
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