Osmosis/Diffusion
Diffusion is the movement of particles from an area of ___ concentration to ___ concentration.
What is high to low?
Which two are types of active transport: endocytosis, sodium-potassium pump, facilitated diffusion, or osmosis?
What are endocytosis and sodium-potassium pump?
Which part of the cell regulates the movement of materials in and out?
What is the cell membrane?
Which molecules are needed for cellular respiration?
What are glucose and oxygen?
Enzymes lower the __ required for reactions to start.
What is activation energy?
A chicken egg placed in pure water swells in size. What type of solution is the water compared to the egg?
What is a hypotonic solution?
Diffusion and osmosis are examples of this type of transport.
What is passive transport?
The cell membrane allows water in and out but not all solutes. This is called ___.
What is selective permeability?
What is the main source of energy for photosynthesis?
What is light?
When a phosphate group is removed from ATP, energy is ___.
What is released?
The dialysis tubing starch experiment showed iodine could enter, but starch could not leave. What is this property called?
What is semipermeable?
Proteins that act as tunnels for specific substances are called ___.
What are channel/transport proteins?
In the egg lab, which best described the role of the membrane?
It allowed water to enter and exit the egg, as it would a cell
Energy is captured in the ___ and released in the ___.
What are chloroplasts and mitochondria?
Enzyme activity depends on environmental factors. Which two graphs tested this?
What are temperature and pH?
A freshwater organism’s cell fill up with water when the solution around it is ___?
Hypotonic (high concentration)
Moving substances into or out of the cell using vesicles, like exocytosis, requires ___.
What is energy/ATP?
How do cells maintain homeostasis?
Cells maintain homeostasis by moving molecules inside and out based on their needs.
Which process causes bread dough to rise during fermentation?
Anaerobic Respiration (carbon dioxide release from alcoholic fermentation)
Which statement explains how inhibitors affect enzymes?
The substrate won't be able to attach to the enzyme
In the egg experiment, why did the eggs shrink in a starch/syrup solution while they swelled in water?
Because the starch/syrup solution was hypertonic, and the water was hypotonic
What does it mean for a membrane to be "selectively permeable"?
It lets some molecules/materials in but keeps others out
A cell membrane providing support and protection is true, but its essential role is ___.
What is regulating movement of materials?
Which statement best explains why plant cells contain both chloroplasts and mitochondria?
What is “Sugars are made in chloroplasts, then used in mitochondria to make ATP”?
How come all enzymes can't come together with any substrate and work?
They have to fit together, structure affects function