Ecology
Which statement best explains section X of the graph?
the population reached a steady state/dynamic equilibrium due to limiting factors.
What is the job of T-RNA and where can it be found?
1) Brings amino acids to the ribosome
2) Found in cytoplasm
Which statement accurately compares sells in the human circulatory system to cells in the human nervous system?
Cells in the nervous system are different in structure and carry out different specialized functions than cells in the circulatory system.
Name the part of the enzyme that has a special shape to fit the substrate
Active Site
Which structures are found in every living cell?
Plasma membrane and cytoplasm
What role do the amounts of available energy, water, and oxygen play in an ecosystem?
They act as limiting factors.
What are two types of changes that can occur to genes?
Environmental and internal
What usually results when an organism fails to maintain homeostasis?
The organism becomes ill or may die
Enzymes are..
Proteins
Centrioles are cell structures involved primarily in..
Cell Division
Name all symbiotic relationships and their definitions.
1) Mutualism: A relationship where both organisms are being benefited
2) Commensalism: A relationship where one organism is being benefited while the other is not being affected
3) Parasitism: A relationship where one organism is being benefited and the other organism is harmed. In this case, the benefited organism would be considered the parasite while the harmed organism would be considered the host
Name some benefits of insulin
1) It comes from humans
2) Cheaper
3) Does not cause as much harmful side effects as animal insulin
Which change in the body occurs when a disruption of homeostasis has taken place?
a sudden, rapid rise in the number of red blood cells.
What makes an enzyme substrate specific?
Shape
Which organelle is correctly paired with its specific function?
A) Cell Membrane-storing hereditary information
B) Ribosomes-Protein synthesis
C) Vacuole-Production of ATP
D) Chloroplast-transport of materials
B (Ribosomes-Protein synthesis)
Name two types of succession and their definitions.
1) Primary: starts in a lifeless area
2) Secondary: Starts where life was existed before
When the sperm and egg cells combine/make contact, a new cell is created. State the name of the new cell.
Zygote
State the equation for respiration
Glucose + Oxygen = Carbon Dioxide + Water + Energy
What is the name of a substance that speeds up chemical reactions
Catalyst
What is the term for each step in the transfer of energy and matter within a biological community?
Trophic levels
State the ecological level of organization (least to complex)
Species - Population - Community - Ecosystem -Biosphere
Name 5 types of chromosomal mutations
1) Deletion
2) Inversion
3) Duplication
4) Nondisjunction
5) Translocation
Name an example of homeostasis in plants
Opening of stomata in plants when there is too much water and closing of stomata to preserve water when there is a lack of it.
Meat tenderizer contains an enzyme that interacts with meat. If the meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?
Its activity would slow down due to low temperature
What is the original source of almost all energy in most ecosystems?
Sunlight/Solar energy