Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
Steps of the Scientific Method |
1. Observation 2. Hypothesis 3. Experiment 4. Data 5. Conclusion 6. Scientist report their findings in journals |
|
How do enzymes affect biological reactions? |
Enzymes lower the activation energy, thus more reactants can react and the the rate is increased |
|
What properties (more than 1) of water are responsible for capillary action? |
Cohesion, Adhesion, and Surface Tension |
|
Molecules that are too large to pass through the cell membrane use this type of active transport |
Enodcoytosis |
|
Organelle responsible for converting chemical energy stored in food is? |
Mitochondria |
|
In which cells does cellular respiration. (Specifically Glycolysis) |
- Cytoplasm 1. Glycolysis 2. Kerbs Cycle 3.Electron Cycle |
|
What is the chemical equation for cellular respiration? |
C6H12O6 + 6O2 + light energy = C6H12O6 + 6O2 |
|
Why do chromosomes condense during mitosis? |
So that can be separated with relative ease, into equivalent halves |
|
What occurs during translation of proteins? |
In translation, messenger RNA(mRNA) - produced by translation from DNA - is decided by a ribosome to produce a specific amino acid chain, or polypeptide |
|
Describe the structure of DNA. How is it different from RNA? |
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. The 4 types of nitrogen bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). -RNA is single stranded/ DNA is double stranded -RNA has the pentode sugar ribose/DNA has deoxyribose -RNA has the pyrimidine base uracil |
|
Know the difference between homozygous recessive, homozygous Dominant, and Heterozygous. |
-Homozygous is the same. Heterozygous is different. -If something is homozygous it will have the same letters and if its heterozygous it will have a capital and lower case letter. |
|
Mendel's ratio for the F2 generation was...? |
3:1 |
|
Order of events for the origin of life? (Chp 14) |
a. Formation of DNA based on generic systems b. Synthesis of organic polymers c. Formation of protobionts d. Synthesis of organic monomers |
|
Why were cyanbacteria important in the early life on earth? What did they provide to the atmosphere? |
- Cyanobacteria created oxygen, they provided the atmosphere with oxygen |
|
What is the difference between a hominoid and hominid? |
- hominoids are primate groups that include common ancestor of humans and apes |
|
Give an example of an analogous structure |
- Shark fins v Dolphin fins - Moth wings v Bird wings - Octopus eye v. Human eye |
|
Define the endosymbiosis theory? |
It's a theory where the mitochondria and chloroplasts of the cell are believed to have evolved from bacteria. |
|
Know how to classify taxa from broadest to most specific. (DKPCOFGS) |
1. Domain 2. Kingdom 3. Phylum 4. Class 5. Order 6. Family 7. Genus 8. Species |
|
Which 2 kingdoms contain Orangism's w. Cell walls made of cellulose? |
Kingdom Plantae and Fungi |
|
Why are virus considered non living? |
Because they don't have cells |
|
Describe the limitations of the biological species concept? |
Since it's dependent on dependent on sexual reproduction, the species concept may be hard to apply organisms that don't reproduce sexually |
|
What are the 3 biochemical characters used by scientists to identify evolutionary relationships? |
Fossil evidence, Embryology, and Anatomy |
|
Define nitrogen fixation |
Chemical processes by which atmospheric nitrogen is assimilated into organic compounds |
|
What does it mean when a lake is eutrophic? |
It has eater that's rich in mineral and organic nutrients that promote plant life |
|
What's the difference between primary and secondary succession? |
- Primary succession is the colonization of living organisms into an area that want previously colonized by any living things -Secondary Succession is the regeneration of the living community after a major disturbance |
|
What's the difference between limiting factor and range of tolerance? |
- limiting factors are things that prevent a population from growing any longer -cannot survive if there is too much or too little of the factor |
|
Describe transpiration in plants |
The loss of water from a plant by evaporation is known as transpiration. Most of the water is list throught the surface openings, or stomata, on the leaves. |
|
Describe what the difference between density dependent and density independent factors is. |
Density independent is a factor that affects a population based on it's population, including amount of resources, disease, etc. -
Density Independent factor is a factor that affects a population in a manner that doesn't vary according to the density of its population etc. |
|
Give an example of an R-selected species |
Mice, Rabbits, Mosquitoes, Fleas, Weeds, etc |
|
Know how to read an age structure |
If the pyramid is top heavy there'll be a decrease of population. Bottom heavy there should be an increase in population in the coming years. |
|
Give examples of renewable and non renewable resources |
Renew: Water, O2, Timber, Fruit and Vegetables, Meat from animals
Non: fossil fuels |