Podcast
Questions and Answers
What percentage of the human body weight is made up of water?
What percentage of the human body weight is made up of water?
60-75%
What happens if you lose 4% of water content in your body?
What happens if you lose 4% of water content in your body?
- dehydration (correct)
- fatal
- superhydration
- normal
What kind of bond is a polar covalent bond?
What kind of bond is a polar covalent bond?
Extensive capability to dissolve a variety of molecules
Sugars are non-polar.
Sugars are non-polar.
What creates pressure inside the cell?
What creates pressure inside the cell?
What is a hydrated cell?
What is a hydrated cell?
What happens to a dehydrated cell?
What happens to a dehydrated cell?
What do heads of phospholipids interact with?
What do heads of phospholipids interact with?
What do tails of phospholipids avoid?
What do tails of phospholipids avoid?
What type of cell component allows some molecules to enter and exit whilst excluding others?
What type of cell component allows some molecules to enter and exit whilst excluding others?
What happens if you lack water during a chemical reaction?
What happens if you lack water during a chemical reaction?
What is water's role in the function of proteins?
What is water's role in the function of proteins?
What do proteins turn into?
What do proteins turn into?
If concentration of outside H2O inside?
If concentration of outside H2O inside?
What happens when water moves out of the cell?
What happens when water moves out of the cell?
What is the function of active transport in the paramecium or single cell?
What is the function of active transport in the paramecium or single cell?
What is osmosis?
What is osmosis?
If external is greater than the internal, the cell is?
If external is greater than the internal, the cell is?
Flashcards
Osmosis
Osmosis
Movement of water from high to low concentration through a semipermeable membrane.
Homeostasis
Homeostasis
Tendency to maintain a stable internal environment despite external changes.
Passive Transport
Passive Transport
Transport that doesn't require energy.
Diffusion
Diffusion
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Isotonic Solution
Isotonic Solution
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Hypertonic Solution
Hypertonic Solution
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Hypotonic Solution
Hypotonic Solution
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Universal Solvent
Universal Solvent
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Cohesion
Cohesion
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Turgor Pressure
Turgor Pressure
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Mucociliary System
Mucociliary System
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Cystic Fibrosis
Cystic Fibrosis
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Prokaryotic Cells
Prokaryotic Cells
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Eukaryotic Cells
Eukaryotic Cells
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Cytoplasm
Cytoplasm
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Cytoskeleton
Cytoskeleton
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Ribosomes
Ribosomes
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Endoplasmic Reticulum (ER)
Endoplasmic Reticulum (ER)
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Golgi Apparatus
Golgi Apparatus
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Lysosomes
Lysosomes
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Vacuole
Vacuole
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Mitochondria
Mitochondria
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Nucleus
Nucleus
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Plasma membrane
Plasma membrane
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Cell Wall
Cell Wall
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Chloroplasts
Chloroplasts
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Xylem
Xylem
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Phloem
Phloem
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Stomata
Stomata
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Multinucleated
Multinucleated
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Concentration Gradient
Concentration Gradient
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Solute
Solute
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Solution
Solution
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H2O
H2O
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Solvent
Solvent
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Human Body Water
Human Body Water
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Polarity
Polarity
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Cell Pressure
Cell Pressure
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Phospholipid Bilayers
Phospholipid Bilayers
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Proteins
Proteins
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Catalyze Chemical Reactions
Catalyze Chemical Reactions
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DNA
DNA
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Photosynthesis
Photosynthesis
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Dehydration
Dehydration
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Cilia Sweep Mucus
Cilia Sweep Mucus
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CFTR
CFTR
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Epithelial Sodium Channel
Epithelial Sodium Channel
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Prokaryotes
Prokaryotes
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Eukaryotes
Eukaryotes
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Characteristics of Cells
Characteristics of Cells
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Cell Membrane
Cell Membrane
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Endoplasmic Reticulum
Endoplasmic Reticulum
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Study Notes
Diffusion and Osmosis
- When a solution needs to be diluted, water flows from an area of high water concentration to low water concentration until it achieves the correct solute mixture
- Particle movement is always more to less concentrated
Homeostasis
- Molecules randomly move from high-to-low concentration zones
Solutions
- Solutions move across cells by osmosis
Transport in Cells
- External concentration levels affect the cell's dehydration levels, causing it to crenate/shrink due to it's lower level outside
- Normal external levels will result in solute that remains consistent through out the cell
- If external water concentrations are higher than normal it could cause bloat or damage the cell
- Osmosis is the movement of molecules across a cell, the form of diffusion
Water's Composition
- Polar Covalent Bonds involve adjacent cohesion where water molecules stick together
Cellular Water and Shape
- Osmosis releases water during hypotonic concentrations
Prokaryotic vs. Eukaryotic Cells
- Eukaryortic calls have Golgi Budy
- Eukaryotic vs Prokaryotic are similar in that they contain lipids carbs, proteins, nucleic acids, ribosomes, metabolism and may even include cell walls
Cell Organelles (Animals)
- The Endoplasmic Reticulum helps pacakge proteins with materials for either immediate use or to be packaged
Cell Walls (Plants)
- Cell walls are semipermiable, which protect the cell, and it all made of cellulous
The Gram Stain
- The Gram Stain helps indentify processes bacteria
- Gram Positive is typically purple in color and can retain its color after dying
- Gram Negatives are readily discolorized, typically red, due to lipid rich membranes.
Bacteria
- Bacteria can synthsize and absorb nutrients in heterotrophic solutions
- Bacterial DNA is more circular and not seperated with Plasmid structures.
- Bacteria can range from rods, shaped into chains/spirals
- Bacteria does binary fisson, or single or direct cell replication
Plant Cells
- Each of the cells must perform different tasks (Stem/Root system, etc)
- Photosynthesis produce sugars from sun and carbon dioxide
- There are also fiber cells provide strength to stem/plants
Plasma Membrane
- Must maintain balance through osmosis
- Protects the cell membrane
- Phospholipids bilayers create semi-permiability
- Must regulate proteins
- They can more around if not hydrophilic to help maintain the proper structure of proteins
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Description
Explore diffusion, osmosis, and homeostasis. Understand how water moves across semipermeable membranes and how solute concentration affects the movement of water. Learn about maintaining a stable internal environment through waste elimination and material exchange.
