Experiments
Name three type of variables
1. Independent 2. Dependent 3. Controlled
Name the 3 statements of Cell Theory
1. the smallest unit of life is cells
2. all cells come from pre-existing cells
3. all organisms are made up of one or more cells
What organelle is known as the "powerhouse" of the cell?
The mitochondria
In your own words define homeostasis and why it is important
helps regulate our body
Where did the cell name come from?
While observing the shape, they looked like small rooms (jail cells)
What is the difference between an experimental group and the controlled group?
The experimental receives the treatment (the independent variable) while the control remains the same
Who came up with the name "cell"? This person studied cells through a self made microscope.
Robert Hooke
Name TWO organelles that is found IN PLANT cells but not in animal cells
chloroplast
cell wall
Having one large vacuole
What two types of feedback does homeostasis use?
Positive and Negative
which organelle are Ribosomes found in? be as specific as possible
They are found in the Rough ER
List three examples of a Dependent variable.
Distance, time, height
anything we can measure
Identify what kind of cell Michelle is projecting
Prokaryotic
Name the organelle that Michelle projects on the screen and name its function
Golgi Apparatus-- determines the destination
What is the most common feedback in the body and nature.
Provide an example
Negative Feedback
ex: sweating, shivering, dehydration
What object can you compare homeostasis to?
Ex: Seesaw, balance beam
If you drink more milk will you get stronger bones? State a good hypothesis for this question
If you increase the amount of milk you drink, then you will increase the strength of your bones.
Put the following in order (smallest to largest) according to cell organization levels
1. heart
2. horse
3. skin tissue
4. blood cells
5. respiratory system
blood cells, skin tissue, heart, respiratory system, horse
What are the 3 roles that cell membrane has?
1. protection inside of cells
2. Determining what is going in and out of the cell
3. supports and provides shape
Name the three parts of the feedback loop after the stimulus.
sensor, control, effector
Is virus alive? Name the type of relationship they have to our cells.
They are not! They have a parasitic relationship (key word) they need a host
Identify the IV and DV in this situation.
Zack wants to determine if the amount of time spent on social media affects anxiety levels. He will be conducting a survey before social media use and after.
IV: amount of time
DV: anxiety level
CV: the survey
Name three differences between eukaryotic and prokaryotic cells.
shape, size, time of discovery, organelles,
unicellular vs multicellular
What are vacuoles?
Small storage places in the cytoplasm
stores food, waste, and water
Explain what can happen when too much sweating occurs and why?
One can get hyperthermia as sweating is making the body cold, and too cold can cause hyperthermia
Translate the following DNA and write the mRNA code
ATG - CGC - TGT
UAC-GCG-ACA