Comprehensive BIO 207 Q&A Bundle

In the sympathetic nervous system, _______________ is secreted by postganglionic neurons onto target tissues. norepinephrine Preganglionic neurons are relatively shorter in the ________ nervous system. sympatheitc The ___________ nervous system has thoracolumbar emanations from the CNS. sympatheti...

When DNA is not repaired or cannot be repaired, what is the end result? Apoptosis- programmed cell death or mutation. A mutation occurs in a dog egg that changes a A to a T. This egg is fertilized and a puppy is born. What are the effects, if any? If the mutation is recessive, there will be no chan...

What is a microorganism (microbe)? -microscopic unicellular organisms -not just bacterial -exist in all 3 domains (eukaryotic, bacteria, archaea) -viruses also considered microbes eukaryotes -protists and fungi -extensive membrane-bound organelles -DNA enclosed in a membrane-bound nucleus -cells ar...

Cell The small unit of life that can function independently; A three-dimensional structure, surrounded by a membrane and a prokaryotes and most plants by cell wall, in which many of the essential chemical reactions with life of an organism takes place cell theory A unifying and universally accepte...

Selective Toxicity the ability of a drug, at a given dose, to harm the pathogen and not the host Spectrum of activity the range of pathogens for which an antimicrobial agent is effective Drug susceptibility factors the relative effectiveness the average attainable tissue levels the route of admini...

Human microbiome All of the microbes (bacteria, fungi, protozoa, archaea) that live within the human body and their collective genome. Beneficial microbial interactions 1. Synthesis of metabolites - vitamins and nutrients 2. Carbohydrate digestion 3. Protect from pathogenic microbes by competing fo...

A cell that produces many proteins for secretion would have large numbers of A) rough ER and Golgi apparatus. B) lysosomes and Golgi apparatus. C) Golgi apparatus and microvilli. D) free ribosomes and Golgi apparatus. E) mitochondria and cilia. A) rough ER and Golgi apparatus. Which amino acid has ...

Explain the methodology for measuring the photosynthetic rate in a closed aquatic environment. Connect a Plexiglas leaf chamber to a CO2 sensor so the change in concentration can be measured. The IRGA is the CO2 analyzer. Calibrate the analyzer with CO2 free air and CO2 air making sure the response ...

Free energy differs from total energy because: It is available to do work. Life relies on two key reactions: the oxidation of glucose to produce CO2 and water and the reaction of CO2 and water to produce glucose. These reactions are: Exergonic and endergonic, respectively A reaction that is exergo...

produces a functional RNA, which usually encodes a protein structural gene regulates the expression of a structural gene. - Does not encode an RNA or protein - Includes promoters & binding sites for regulatory proteins regulatory sequence most have one circular chromosome bacteria and archaea are...

what is a population? a group of individuals of the same species living in the same area at the same time what is a community? A group of populations of different species living and interacting in an area. what is an ecosystem? A community of populations and its abiotic environment microbio...

Microbial genomes consist of one or more DNA chromosomes Circular or linear, chromosomes or plasmids Usually one circular DNA chromosome Genome All genetic info that defines an organism Genes Contiguous packets of info encoded on chromosomes A structural gene produces a functional RNA, which us...

dendrites branchlike parts of a neuron that are specialized to receive information axon hillock the conical region of a neuron's axon where it joins the cell body; typically the region where nerve signals is generated. myelin sheath a layer of fatty tissue segmentally encasing the fibers of many ...

Typical definition of GeneticsThe study of genes, heredity, and genetic variation What is a gene?•Basic unit of heredity •Sequence of DNA that codes for a product (RNA or protein) and it's regulatory regions •Located on chromosomes What is an allele?One of two or more versions of a gene Wh...