Characteristics of Life
What are three of the characteristics of life?
What is
respond to environment, consumes energy (metabolism), reproduces, has cells, has genetic material, evolves...
What type of cell has a chloroplast?
What is a plant cell?
For a hypothesis to be valid it must be
What is testable
The four macromocules are
What are Lipids, Carbohydrates, Proteins and Nucleic Acids
What type of transport requires entry?
What is active transport?
What is abiotic and biotic factors?
What is abiotic factors-non living factors (temperature, water)
biotic factors- living factors (trees, animals)
A major difference in prokaryotic cells and eukaryotic cells is that
What is eukaryotic cells have a true nucleus, prokaryotes do not.
What is the monomer and polymer of proteins?
What is
monomer-amino acids
polymer-polypeptide
The cell membrane acts like a body guard because it only allows certain things to pass. What is the cell membrane describe as because of this?
What is semi-permeable/selectively permeable?
This characteristic of life is possible because of DNA.
What is pass on genetic information (heredity)?
What are the different ways cell reproduce? Describe them.
What is
asexual reproduction (binary fission, 1 organism)
sexual reproduction (sperm & egg, 2organisms)
If you were to draw a graph of your data from a lab, what would go on the X axis?
What is independant variable
Athletes will have pasta parties the night before an event because it provides what
What is carbohydrates for short term energy
A stalk of celery was placed into a solution. After 2 hours the celery stalk was shriveled. What type of solution was the celery placed in?
What is a hypertonic solution?
What type of cell has a nucleus, ribosomes, lysosomes, and does not have a cell wall?
What is an animal cell?
The difference between a control and constant (controlled variable)
What is the control are the natural conditions that are used as a base line for comparison. Constants (controlled variable) are the things in the experiment that you keep the same in every trial.
How do organisms get the macromolecules necessary for life?
What is through food? except nucleic acids which an organism receives from parents?
What are the types of active transport?
1. molecular pumps
2. endocytosis
3. exocytosis
Describe the 2 feedback loop systems. Provide an example of each.
What is
negative feedback- reduces a stimuli in order to bring the body back to homeostasis ex- blood pressure/temperature
positive feedback- amplifies the stimulus the goal is reached ex-child birth/blood clotting
What are the 3 parts of cell theory?
What is..
1. All things are made of cells.
2. Cells are the basic unit of life.
3. All cells come from pre-existing cells.
What is a valid hypothesis for the research question: How does temperature affect seed germination?
What is IF we decrease the temperature of the room where we are gemninating the seeds THEN they will take longer to germinate BECAUSE then need a specific temperature to grow.
What macromolecules are used for energy?
1. Carbs
2. Lipids
3. Proteins
*Nucleic acids do not provide energy; just genetic information
What is diffusion?