USABO Exam Questions and Verified Answers Pack | Passed | A

Benedict test : simple carbohydrates; reducing sugars (monosaccharides- ie. glucose, fructose, glyceraldehyde, lactose, arabinose and maltose) biuret test : A biochemical test for the presence of proteins. ninhydrin test : detects amino acids iodine test : Test for starch sudan test : tes...

Which statement is true about enzymes? Enzymes A. Are made up of a base containing nitrogen, phosphate, and ribose. B. Have activity that is independent of temperature and pH. C. Lose some or all of their normal activity when their 3-D structure is disrupted. D. Provide the activation energy nee...

biological form is known as this : anatomy biological function is known as this : physiology this term means tapered on both ends; streamlined body contour : fusiform rate of exchange (for things like nutrients, waste products, and gases) is proportional to this : (membrane) surface area amo...

Mycorrhizae : Symbiotic organisms (aka symbionts) with plants that live on their roots, helping the plant gain nutrients Nerve net : A nervous system that moves neural signals in all directions from the stimuli, found in invertebrates like hydra Malpighian tubules : Tubes in an insect that ...

insterstitial fluid : fluid located between cells and among tissues cuboidal epithelium : cube shaped epithelial cells that function in secretion, and are located in various endocrine glands simple columnar epithelium : lines intestines, secretes digestive juices and absorbs nutrients, one ce...

root system : the entire set of plant roots that anchor the plant, absorb and transport minerals and water, and store food shoot system : the aerial portion of a plant body, consisting of stems, leaves, and (in angiosperms) flowers photosynthate : a sugar or other product of photosynthesis ...

homologous chromosomes : Chromosomes that have the same sequence of genes and the same structure chiasmata : X-shaped regions where crossing over occurred. cohesins : Proteins that hold sister chromatids together crossing over : Process in which homologous chromosomes exchange portions of the...

Which statement is true about enzymes? Enzymes... A. Are made up of a base containing nitrogen, phosphate, and ribose. B. Have activity that is independent of temperature and pH. C. Lose some or all of their normal activity when their 3-D structure is disrupted. D. Provide the activation ener...

Types of animal signaling/communication : 1. Pheromones: Chemical signals that have evolved for communication between members of the same species 2. Auditory: Vocalizations for animals to remain hidden while talking 3. Visual: Signals that can be seen like gestures, facial expressions, body pos...

vitamin b1/thiamine : coenzyme in TCA, beriberi (anemia, nerver disorders, emaciation) vitamin b2 (riboflavin) : FAD and FMN (angular chelitis) (ETC) niacin : NAD+ and NADP+ vitamin b6 (pyridoxine) : amino acid metabolism (numb feet, bad coordination, unstable gait, anemia, muscle twitch, i...

What enzyme does HIV use to convert RNA to DNA? : Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. : 5'...RNA polymerase Which of the following is TRUE of prokaryotes? I. Simultaneous transcription and translat...

What vitamin is found in Porkk, used in removing CO2, and symptoms of deficiency are Beriberi : B1 Thiamine Whats is B2 : riboflavin (skin lessions and cracks at corners of mouth) What is B3 Found in Nuts, Meats, and Grains : Niacin *skin and gastrointesinal lessions, delusions, cofnusions) ...

Why is myelin important in the nervous system? A. It allows signals to travel faster along axons because depolarization occurs only at myelinated locations. B. It allows signals to travel faster along axons because depolarization occurs only at nonmyelinated locations. C. It bundles the dendr...

The production of the genetically engineered "golden rice" could be important to people of developing nations, especially in South-East Asia, because: A. people are more likely to consume yellow grains than white. B. golden rice is less expensive to grow and harvest than white rice. C. golden...