RC 1 (Cell Structure & Function)
type of cell that has no nucleus and no membrane bound organelles
prokaryotic cell
true or false: both viruses and cells have genetic material
true
1. Slow change that occurs over a long period of time: gradualism or punctuated equilibrium?
2. Little to no change for a long period of time (stasis) followed by fast change: gradualism or punctuated equilibrium?
1.Gradualism
2. Punctuated Equilibrium
the tropism that plants have to touch
thigmotropism
Ecological relationship between Predator-prey. The predator eats/kills the prey.
Predation
type of cell that has a nucleus and membrane bound organelles
eukaryotic (plant & animal)
Ecological relationship where organisms compete for resources like food, shelter, and mates.
Competiton
the goal of natural selection
survive, reproduce, and pass on beneficial traits
the 2 body systems responsible for hormone regulation and the breakdown of glucose from carbs (pastas, bread)
endocrine & digestive
Ecological relationship where one organism benefits the other is unaffected/unharmed.
Commensalism
Why is DNA replication considered semi-conservative?
because each new DNA double helix is composed of one original strand and one new strand
When cells divide too fast or uncontrollably, it is known as which disease?
Cancer
the transfer of genetic material from one population to another; ex. interbreeding/exchanging of genes: genetic drift, gene flow, or speciation?
gene flow
1. vasuclar tissue in plants that transports sugar to the rest of the plant: xylem or phloem?
2. vascular tissue in plants that moves water and minerals upwards: xylem or phloem?
1. phloem
2. xylem
What type of organism belongs at the very bottom of an energy pyramid: producers, herbivores, omnivores, or carnivores?
1. What biomolecule are enzymes: carbohydrates, lipids, proteins, or nucleic acids?
2. What biomolecule makes up majority of the cell membrane: carbohydrates, lipids, proteins, or nucleic acids?
2. Lipids
What part of a nucleotide is responsible for carrying the genetic information that leads to an organism's unique traits: deoxyribose sugar, phosphate group, nitrogenous bases?
nitrogenous bases (A, T, G, C). the order of the bases is what makes everyone look different
what type of natural selection favors extreme traits over basic traits: disruptive, directional, or stabilizing?
disruptive selection
What is the relationship between photosynthesis and cell respiration?
the products for photosynthesis (glucose, oxygen) are the reactants needed for cell respiration. the products for cell respiration (carbon dioxide, water, and energy) are the reactants needed for photosynthesis.
What is an invasive species?
a non-native organism (plant, animal, or disease) that spreads and can cause harm to the environment, economy, or human health.
What are the 3 major parts of the cell cycle in order and what occurs during them?
1. Interphase: cell growth, dna replication, preparation for division
2. Mitosis: PMAT; division of the nucleus
3. Cytokinesis: division of the cytoplasm; result is two identical daughter cells
1. Viruses: living or nonliving?
2. Do viruses have organelles: yes or no?
3. Proteins have genetic material and a protein coat called a capsid: true or false?
1. Nonliving
2. No
3. True
What is speciation?
the formation of a new species (ex. Darwin's finches)
body system that prevents illness or injury (fights off infections)
immune system
How do environmental changes (ex. construction) affect biodiversity (organisms in a particular area)?
Environmental changes often destroy natural habitats, which means animals and plants lose their homes. This makes it harder for them to survive, so we see fewer different types of living things, which is what biodiversity is all about. Plus, sometimes new plants or animals get brought in during construction, and they can mess up the balance of the ecosystem.