Unit 1
What is the role of a vacuole?
Storage
What will most likely occur if populations increase at their current rates?
Rapid depletion of natural resources
Guanine goes with ____, while Thymine goes with ____.
Cytosine
Adenine
What molecules are joined together to form proteins?
Amino Acids
Translate the following DNA bases into an mRNA base.
TAG CAG TAC
AUC GUC AUG
Which structure of plant cells helps them produce their foods?
Chloroplast
In some ecosystems, Wolves have been eliminated due to their risks to humans. How would the reintroduction of wolves benefit the ecosystem?
Eliminating Weak animals, thereby decreasing competition.
How do chemicals increase the risk of a person getting cancer?
Causing Cell Mutations
Which cellular process is this?
Glucose + Oxygen = Carbon Dioxide and Water
Cellular Respiration (with 36-38 ATP)
What would be a desirable trait for a transgenic plant?
The ability to resist incests AND/OR
Grow better in unfavorable conditions
If a cell with 8 chromosomes undergoes mitosis, what will be produced?
Two Cells with Eight Chromosomes
What are heterotrophs?
Animals that get their nutrients by consuming other animals or products.
What makes Meiosis different from Mitosis?
Meiosis creates two genetically different cells via the crossing over of chromosomes.
How does a runner keep up a demand for energy when cellular oxygen levels are low?
Anaerobic Respiration
How does sweating maintain homeostasis?
Regulates body temperature
What do both prokaryotic and eukaryotic cells contain?
Ribosomes, Cytoplasm, and Plasma Membranes
Why are farmers suggested to plant different types of crops on the same piece of land throughout the year?
To preserve the quality of the soil.
Scientists believe that Polar bears and Brown Bears evolved from a common ancestor. What would be a reason they are so different now?
Geographic Isolation
A contractile vacuole helps protists eliminate excess liquid. This is a “pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?
ATP
Which will most likely result in a negative growth rate in human populations?
Birth rate lower than Death Rate
What determines the function of a specialized cell?
Active Genes in the Cell
What is the role of Decomposers in the Carbon Cycle?
Break down of dead materials that release carbon dioxide into the atmosphere.
Multicellular Eukaryotic autotrophs belong to which kingdom?
Plantae
Waxes create a waterproof layer to some living organisms. Which group of organic materials do waxes belong to?
Lipids
What does tRNA deliver to Ribosomes?
Amino Acids