Final Flashcards
Natural Selection causes organisms to inherit genetic changes that allows them to be better suited to a particular environment. Give a characteristic of life that is an examples of this.
Evolution
An adder in the Namid Desert can use camouflage to attack its prey. What is a characteristic of life that this is an example of?
Evolution
The theory that the most basic level or organization of life is a cell.
Cell theory
The theory that all living organisms are made of cells and all cells come from pre-existing cells.
Cell theory
Correctly indicate the levels of organization in increasing order?
organelle, cell, tissue, organ, organ system, organism
How living things change over time due to mutation, natural selection, etc.
Evolution
The theory of evolution explains what?
Why we have such diversity of life on this planet
The principles of evolution =
the mechanics of how that works
Which of the following ways that living things use energy is necessary to sustain life on this planet due to the law of entropy causing everything to become disorganized?
photosynthesis
entropy causes energy to…
be lost
life wouldn’t be possible on this planet without ______
photosynthesis
Why is sexual reproduction(genetic recombination) more adventages than asexual reproduction
- diversity
…because genetic recombination = diversity = key for survival and adapatation
This process is necessary to sustain all life on this planet
photosynthesis/cellular respiration
Which of the following modes of reproduction is most adventages for survival?
sexual reproduction/genetic recombination
Food entering the human digestive system causes the pancreas to release insulin and other hormones into the bloodstream to regulate blood glucose levels. This is an example of how living organisms
maintain homeostasis
state of internal constancy or equilibrium
homeostasis
Constant stream of energy required to maintain organized life
metabolism
disruption of homeostasis
disease
Consumers break down organic material from other organisms to fuel their metabolism. This is an example of how living organisms
use energy
how all living things process energy
glucose metabolism
Gregor Mendel discovering ways in which alleles are passed on from one generation to the next and how you can predict the outcome of one gene vs. the other
Laws
- Law if Inheritance
- Law of Segregation
- Law of Independent Assortment
explains why we have the diversity of life on the planet
theory of evolution
the theory of why there’s so much diversity of life
theory of evolution
atoms interact with one another to become stable
- atoms become stable by filling their outermost electron shell
valence electron shell theory
the theory that explains why molecules form
valence electron shell theory
principles of evolution
natural selection sexual selection mutation genetic drift gene flow
all of the principles of evolution
hardy-weingberg principle
no two species can coexist in the same ecological niche
- when 2 species interact and compete over the same ecological niche
competitive exlusion principle
2 outcomes of competitive exclusion principle
- one species displaces the other
- resource partitioning: use different parts of same ecological niche, coexist in same environment, but no longer use same resources
states that the more you know about an electron’s position, the less you know about where it’s going
-principle of valence electron shell theory
Heisenberg Uncertainty Principle
2 Laws of Thermodynamics
Law of Energy Conservation: all energy is conserved, merely transformed from one to the other
Law of Entropy: all energy transfers are inefficient = loss of energy
3 types of bonds
covalent: when atoms share electrons in their outermost electron shell
- most biological connections
- potential enrgy ( > covalent bonds = > potential energy)
ionic: 2 atoms of opposite charge interact
- don’t occur often in biological systems because they don’t readily form in water
hydrogen: one of the most important for life
- gives DNA double helix structure
- allows proteins to fold into enzymes
- gives water life-sustaining properties
dissolver
- dissolve polar nonionic substances, ions, and some nonpolar gases
- When you breathe in oxygen, it will diffuse past your lung cells and dissolve in your blood because water has what characteristic
- This property of water is especially important for organisms which use water to transport dissolved materials throughout their systems
solvent
Water has many properties that allow biological organisms to function. Which properties of water allows trees to pull water from the roots into the upper branches?
cohesion/adhesion
works well together
- water is attracted to itself
cohesion
- attracted to other polar substances and surfaces
- When a nurse pricks your finger and draws blood into a capillary tube, what propertie of water allows the blood to be attracted to the surface of the glass and flow up the tube
Adhesion
- area where water area is separated from air/atmosphere (skin)
- Insects and other materials are able to settle on top of water without breaking through.
Surface Tension
- keep temp. compatible with those of living organisms
- 1 calorie = 1 g H2O increase 1 degree C
- allows costal regions to balance drastic changes in climate
- allows humans to exercise and not die from a rapid rise in temperature
- water is less dense in its solid form than its liquid form
Heat Capacity
- synonymous to Photosynthesis (energy being absorbed/stored)
- monomer -> polymer
- kinetic -> potential
Dehydration Synthesis
- synonymous to Glucose Metabolism (energy being extracted)
- polymer -> monomer
- potential -> kinetic
Hydrolysis
A glycoprotein is a combination of two polymers attached to each other from two different basic biological groups. It is obvious what group the protein aspect of this molecule belongs to. The molecule however that is attached to the protein belongs to the ________________ group.
carbohydrate
Nucleic acids, starch, and proteins are broken down by enzymes into their respective monomers during a chemical process called
hydrolysis
___________________ are the hereditary material found in the cells of all living organisms and is used to instruct each cell how to function.
nucleic acids
polysaccharides are made by
dehydration synthesis
- used for energy and structure
- most abundant ones (cellulose) on the planet aren’t used for food
- most readily available source of energy in human bodies
- used for short term energy storage
- easy breakdown for energy consumption
- used for construction of cell walls
- attached to proteins for cell recognition
- cellulose: most abundant (polysaccharide), nondigestible
carbohydrates
- what lipid makes cell membranes unique
- most important lipid for life
phospholipid
- all of the functions of the cells
- allows everything in biology to function
- “the workers”
proteins
- hereditary material
- “blueprints” of the cell
- code for how proteins are to be made
nucleic acids
- The majority of energy capturing in a plant leaf takes place in which organelle
- photosynthesis occurs
- Life on our planet requires a replenishment of energy from the sun. Which organelle replenishes and ecosystem with energy from the sun
- autotrophs
chloroplast
which organelle does the process of transcription(copying of DNA) take place
nucleus
- which organell does the process of translation (conversion of mRNA sequence to protein sequence) take place
- makes proteins
ribosomes