The Scientific Method
What is a dependent variable?
A variable that depends on a change
What is the difference between the characteristic of "adapt to surroundings" and "react to change"?
Adaptations are permanent, but reactions are momentary
Name organelle 1
Cell Membrane
What is the purpose of mitosis
To duplicate cells in order to grow and heal
What is the purpose of photosynthesis?
To create food energy from light energy
What is a control group?
Experiments are split into two groups: one group is used as a "baseline" and the other is changed or altered in some way. Control groups are the baseline.
Which kingdom of life are NOT considered living?
Viruses
Name organelle 2
The nucleus
What is the purpose of meiosis
To create gametes (sperm and egg cells)
What is the purpose of cellular respiration?
To create cell energy (ATP) from food energy
What are the 6 steps of the Scientific Method?
Ask a question, research, propose a hypothesis, test with an experiment, analyze data, report conclusion
What three cellular components do ALL living things have?
A cell membrane, cytoplasm, and DNA
Give the name AND function of organelle 3
Mitochondria
Responsible for energy production (the site of cellular respiration)
A cell starts with 24 chromosomes. It undergoes replication and ends with 4 daughter cells that have 12 chromosomes.
Was this meiosis or mitosis?
Meiosis
What are the GENERAL inputs and outputs of photosynthesis?
In: Water, sunlight, carbon dioxide
Out: Sugar, oxygen
Mary and Mark are afraid of mice and want to test which brand of mouse trap is more effective.
They plan to track how many mice each trap catches. What is the independent variable?
The brand of trap
Is this cell prokaryotic or eukaryotic? AND how do you know?
Prokaryotic because it has no nucleus
Give the name AND function of organelle 4
Chloroplast, the site of photosynthesis
How many daughter cells and chromosomes will you see AFTER the cell undergoes mitosis?
2 cells, each with 52 chromosomes.
What are the GENERAL inputs and outputs of cellular respiration?
In: Sugar, oxygen, water
Out: Carbon dioxide, ATP
Nero and Agrippa are interested in psychology. They want to see whether psychology magazines are more or less popular than car magazines.
They visit the local dentist office and keep track of how many patients pick up each type of magazine in the waiting room. What are the independent AND dependent variables?
Independent: Type of magazine
Dependent: Number of patients
What are the six characteristics of life?
1. Made of cells
2. Able to reproduce
3. Use and Need energy
4. Adapt to surroundings
5. React to change
6. Grow and develop
Give the name AND function of organelle 5
Vacuole, holds food and water
How many steps does mitosis have?
How many steps does meiosis have?
4, 8
What organisms carry out photosynthesis?
What organisms carry out cellular respiration?
P: Green plants and some algeae
CR: ALL living things