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Ch. 35 & 40
Physiology
| Question | Answer |
|---|---|
| What type of pathogen can antibiotics treat? | bacteria |
| From where does active immunity come? | yourself |
| What carries out humoral immunity? | antibodies |
| What is the injection of a weakened pathogen called? | vaccination |
| Waht is the body's first and most important line of defense against diesase? | skin |
| What is the name of diesease-causing organisms? | pathogen |
| Killer T cells attack pathogens in what kind of immunity? | cell-mediated response |
| what type of immune cell does HIV destroy? | Helper T cells |
| An opening in the skin is a potential entrance for what? | infection |
| What happens during anallergic reaction? | Mast cells produce histamines |
| What triggers and immunce response | antigens |
| Why do people with AIDS die from sicknesses such as colds and flu? | No Immune System |
| What are the wtwo divisions of nervous system? | central and peripheral |
| Which neruron type travels from the brain to the body? | Motor |
| What is a stable internal envionment? | homeosatsis |
| What mechanism is used to maintain a stalbe internal environment? | Feedback Inhibition |
| What is the name of the chemical that travels across a synapse to the next neuron to continue an impulse? | neurotransmitter |
| Which part of darwin's theory is represented when lions prey on antelope and some escape? | Survival of the fittest |
| Which characteristic of a population best explains why some species survive while others do not? | biodiversity |
| Why do lethal recessive alleles remain in a population | heterozygotes |
| Which of Mened;s laws does a dihybrid cross prove? | Independent Assorment |
| What is the chance of a male child during fertliization | 50% |
| How ddoes genetic drift affect biodiversity? | decreases it |
| Name one positive thing taht results from mass extinctions | opens up habitats |
| What stage of protein synthesis occurs at the ribosome? | translation |
| During transcription what base replaces thymine on the duplicated stranc? | uracil |
| What type of mutation will shorten the DNA strand and change every amin acid after it? | deletion |
| What varies among proteins resulting in different functions | amino acids |
| Which bases do DNA and RNA share? | guanine, cytosine, adenine |
| What two organisms are carriers of recombinant DNA? | Bacterial plasmids and transgenic organisms |
| What tool is used to cut DNA into fragments? | restriction endonucleases (enzymes) |
| What ddoes natural selection act directly on? | Phenotypes or allele freuencies of a popluation |
| How are lethal alleles maintained in a population | heterozygotes |
| to help remove lethal alleles, what type of male should you remove from a population | heterozygote |
| Define natural selection | ability to survive and reproduce |
| What are the two main sources of variation in a population? | mutations and gene shuffling |
| In order for speciation to occur, what must happen to the original population? | Isolation geographic or behavior but eventually reproduce |
| While observing rocks, if one layer has very few species and another below it has many different species, what does this prove has occurred? | Mass extinction |
| What is the most important factor to ensuring species survival? | biodiversity |
| During photosynthesis what is the carbon dioxide used to produce? | sugar or glucose |
| Which part of the cell is the packaging factory | golgi |
| Name the two factors that can reduce enzyme activity if they are outside the optimum range. | pH and temperature |
| What kind of organism will always be a prokaryote | bacteria |
| Why do we use control groups in experiments? | to compare to the results of the test group |
| What is produced from meiosis | 4 different haploid gametes |
| Hemophilia usually affects males but can affect females, but it is rare. What can you infer about how this disease is transmitted? | Sex-linked recessive on X |
| What stage of protein synthesis occurs at the ribosome? | translation |
| Identify 3 things that we have produced from genetic engineering. | Clones, transgenic organisms, medicine, more food |
| What is the most immediate natural cause of genetic variation? | Mutations |
| Where does transcription occur and what does it produce? | Nucleus; mRNA |
| Where does translation occur and what does it produce | ribosome and proteins |
Created by:
3j0mk1
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