Show:
Ecology #1
Ecology #2
Cellular Transport
Solutions and Tonicity
Cell Organelles
100
List 3 biotic and 2 abiotic factors, respectively:
Answers will vary but must list 3 LIVING and 2 NON-LIVING factors in that order.
100
In a food web, algae, grasses, and trees are all examples of:
Acceptable answers include: AUTOTROPHS, PRODUCERS, or PRIMARY PRODUCERS
100
Passive transport does not require energy to move molecules from an area of _______ concentration to an area of ________ concentration.
from an area of HIGH concentration to an area of LOW concentration.
100
A solution is made up of two parts. Name both parts and give an example of each.
A SOLVENT (one example is WATER) and a SOLUTE (one example is KOOL-AID)
100
Which cell organelle is also known as a PHOSPHOLIPID BILAYER?
The CELL MEMBRANE or PLASMA MEMBRANE
200
The ultimate source of energy for organisms on Earth is:
The SUN
200
Explain what it means if an organism is an OMNIVORE and provide an example of one: TRASHKETBALL - DAILY DOUBLE!!!!
An omnivore is an organism which feeds on both plants and animals. Examples include: Humans, Bears, Pigs, etc.
200
Active transport uses energy to move molecules up the concentration gradient from _______ to ________ concentration.
from LOW to HIGH concentration
200
A cell is said to be in a ______________ solution when the concentration of solute is the same inside the cell and outside the cell. The diffusion of water across the membrane will be equal.
ISOTONIC
200
Which cellular organelle makes energy for the cell and is found in both plant and animal cells?
The MITOCHONDRIA
300
As energy is transferred "up" levels in a food chain or food pyramid, how much energy will be lost at each step? TRASHKETBALL - DAILY DOUBLE!!!!
About 90%
300
An organism that cannot make its own food is called a(n):
Acceptable answers include: HETEROTROPH, or CONSUMER
300
A key difference between passive transport and active transport is that active transport requires ...
Energy
300
When cells are placed in a ________________ solution, there is more solute outside the cell than inside of the cell. In this environment, the cell will lose water and its shape will ______________.
This is a HYPERTONIC solution - The cell will SHRINK or SHRIVEL.
300
Name two of the three cell organelles which are ONLY found in plant cells (not found in animal cells).
CELL WALL, CHLOROPLAST, and CENTRAL VACUOLE
400
Explain the role of DECOMPOSERS and DETRITIVORES in an ecosystem: BONUS OPPORTUNITY: For a TRASHKETBALL - DAILY DOUBLE - explain the key difference between the two types of organisms and provide an example of each!
Decomposers and detritivores break-down dead and decaying material in an ecosystem and return the nutrients to the soil. DECOMPOSERS break down the material using enzymes and include FUNGI and BACTERIA. DETRITIVORES chew or grind the material and include EARTHWORMS, FLIES, SLUGS, and MILLIPEDES.
400
Which growth model is used when a limiting factor is present in a population? AND What is the shape of this curve?
LOGISTICAL GROWTH which has an S-Shaped curve.
400
This type of passive transport involves the movement of water across a semi-permeable membrane. TRASHKETBALL - DAILY DOUBLE!!!!!
Osmosis
400
When cells are placed in a ________________ solution, there is more solute inside the cell than outside the cell. In this environment, the cell will gain water and its shape will ______________.
This is a HYPOTONIC solution - The cell will SWELL.
400
If an organism has a cell membrane, but does not have a nucleus or membrane-bound organelles, it is known as:
A PROKARYOTE
500
Name and explain the three main types of SYMBIOTIC RELATIONSHIPS? BONUS OPPORTUNITY - For a TRASHKETBALL DAILY DOUBLE, provide an example of each type of symbiotic relationship!
MUTUALISM - Both organisms benefit - EX: The Egyptian Plover bird (+) and crocodile (+). COMMENSIALISM - One organism benefits, while the other is unaffected - EX: Moss (+) growing on a tree (0). PARASITISM - One organism benefits, while the other is harmed - EX: A flea (+) on a dog (-).
500
What is the name for the type of population growth that takes place under ideal conditions with unlimited space and resources? AND…. What letter is this type of growth curve shaped like?
EXPONENTIAL GROWTH which has a J-Shaped curve.
500
In what direction on the concentration gradient do particles naturally diffuse?
DOWN the concentration gradient
500
In your own words, describe what the term DYNAMIC EQUILIBRIUM means. TRASHKETBALL - DAILY DOUBLE!!!!
Dynamic Equilibrium is a MOVING BALANCE. For example: When the concentration of water outside the cell is the same as inside the cell. Molecules will continue to move, the concentration will shift slightly back and forth, but overall balance will be maintained.
500
List all three parts of the CELL THEORY: TRASHKETBALL - DAILY DOUBLE!!!!
1. All living things are made of one ore more cell. 2. Cells are the basic building blocks of life. 3. All cells come from pre-existing cells.