Making Connections
Diffusion Through a Membrane
Beaks of Finches
Relationships and Biodiversity
Gimme Points
100
A student lifted weights after school and found that his muscles started to burn. He couldn’t continue to lift the weights after prolonged exercising. This muscle fatigue is most likely due to
lack of oxygen and build up of waste in the muscles
100
This term is used to describe the movement of molecules across a membrane.
What is: diffusion
Double jeopardy: What is the term used to describe the movement of water across a membrane?
100
Define "competition" and provide an example in nature.
organisms/species fighting for the same resources for survival, reproduction, and growth
EX: cheetahs and lions fighting for the same food source
100
How do guard cells of a leaf help to maintain homeostasis in a plant?
Open and close in response to stimuli (presence of water) to either release or retain water.
100
What state is Ms. Herndon from?
California
200
Describe one way in which a pulse rate below 45 would disrupt homeostasis in an individual whose average resting pulse rate falls in the range of 71-80
Less blood flowing around, less oxygen, more waste building up
200
The diagram above represents a shrinking cell. Identify substance A and describe the concentration of dissolved inside and outside of the cell.
A: water
Inside: low(er) concentration of dissolved particles
Outside: High(er) concentration of dissolved particles.
200
Random mutations and new gene combinations resulting from sexual reproduction are the sources of beak variations. Describe at least two beak variations that could randomly appear and further improve your species’ chances of survival when feeding on small seeds.
- smaller
- narrower
- pointier
(anything that makes sense)
200
Explain why B and C are more closely related than A and C
B and C share a more recent common ancestor than A and C
200
What band did Ms. Herndon make a fan website for when she was 12?
The Jonas Brothers
300
Using a specific example, illustrate how a feedback mechanism maintains homeostasis in a living organism
Response to stimuli to return a system to balance
300
Describe what would most likely happen in this system after 20 minutes.
Starch indicator would diffuse into the "cell" and turn the bag purple/black/blue.
300
Explain how an island could support large populations of both Large Ground Finches and Small Ground Finches
Because of their different beaks, they occupy different niches and have different food sources.
300
Which two bears are most closely related? Support your answer with data from the test results.
Bears 1 and 3 are most closely related because they have the most similar DNA fragment
300
What is Mr. Tischler's favorite football team?
The Eagles
400
How does blood help reduce waste in the body?
Blood provides cells with oxygen and nutrients, and removes waste
Double jeopardy: How does pulse rate relate to your circulatory system alleviating muscle fatigue?
400
(Required: scrap paper) On a piece of scrap paper, label the locations of glucose, starch, and iodine after an hour.
400
When Charles Darwin was developing his theory of evolution, he considered variations in a population important. However, he could not explain how the variations occurred. Name two processes that can result in variation in a population.
Random mutation
Sexual reproduction (recombination)
400
What technique is used to separate DNA for analysis?
Electrophoresis
400
What did Mr. Tischler study in college?
Neuroscience
500
What is represented in the accompanying sequence?
Feedback mechanism/organism maintaining homeostasis
500
How is diffusion utilized in the circulatory system?
O2 and CO2 --> capillary membranes --> RBC membrane --> capillary membrane --> tissues
500
A certain chemical destroys bacteria that have thin cell walls. Bacteria with thick cell walls are not affected. Describe how the introduction of this chemical into a culture containing both types of bacteria could be used to illustrate the theory of natural selection.
The chemical would kill the bacteria with thin walls and the bacteria with thick walls would be able to reproduce.
500
B3
500
What are Ms. Herndon and Mr. Tischler's signs?
Herndon: Gemini
Tischler: Aquarius