Study guides, Class notes & Summaries

Both amino acids and nucleotides form complex chains. Select all the answers below that are accurate. A. The chains formed by both have polar phosphate groups. B. Both contain peptide bonds. C. Both contain nitrogen. D. The chains formed by both can be lysed by trypsin. E. The sequence of chains both form from preexisting templates. : C. Both contain nitrogen. E. The sequence of chains both form from preexisting templates. When a population is in Hardy-Weinberg equilibrium, which of th...

Eukaryote : An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin : This shows as pale areas in the nucleas under electro magnification. It is a less densly packed form of chromatin; 10% is even les...

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 rice has been engineered to be resistant to most commercially available herbicides. D. golden rice has been engineered to contain higher concentrations of β-carotene than white rice. E. golden...

In certain areas of Sub-Saharan Africa high levels of anemia are exhibited as a consequence of iron deficiency. What other symptom would you expect might be found in these peoples? A. goiter B. decrease in immune function C. high degree of oscillation in blood glucose levels D. scurvy E. reproductive failure : B. decrease in immune function Inflammation and injury of the pancreas can cause elevated levels of serum amylase. Injury or disease of which of the following organs might you e...

Peripheral proteins : Bound to the surface of the membrane What are the 6 major functions of proteins? : Transport, enzymatic, signal, cell-to-cell recognition, intercellular joining, and attachment to cytoskeleton Glycolipids : Membrane carbohydrates that are covalently bonded to lipids Glycoproteins : Membrane carbohydrates that are covalently bonded to proteins Transport proteins : Allow passage of hydrophilic substances across the membrane 2 Aquaporins : Water channel proteins ...

1) The physical separation of a eukaryotic cell during cell division is: A. Mitosis. B. Meiosis. C. Binary fission. D. Cytokinesis. E. Synthetic fission. : D 2) Which of the following is TRUE about osmosis? A. A solution of CaCl2 will have a lower water potential than a solution of NaCI with the same concentration. B. Isosmotic solutions can be hypotonic if the solute cannot pass through the cell membrane freely. C. Raising the temperature of a solution increases its water po...

Parazoa : Lack true tissues Eumatazoa : Have cells organized into tissue layers Protostome development : Blastopore becomes the mouth and cleavage is spiral Deuterostome development : Blastopore becomes the anus and cleavage is radial Catabolic : Release energy; break down 2 Anabolic : Consume energy; build Energy coupling : Occurs when the energy from a catabolic reaction is stored in ATP so that it can be available to an anabolic reaction Root hairs : Thin extensions of the r...

Oxytocin : Made in: Posterior pituitary gland Type: Peptide Purpose: Stimulates contraction of uterus and mammary gland cells Regulator: Nervous system Antidiuretic hormone (ADH) : Made In: Posterior pituitary gland Type: Peptide Purpose: Promotes retention of water by kidneys 2 Regulator: Water/salt balance Growth hormone (GH) : Made In: Anterior pituitary Gland Type: Protein Purpose: Stimulates growth (especially bones) and metabolic functions Regulator: Hypothalamic Hormones ...

axon hillock : the cone-shaped area on the cell body from which the axon originates -trigger zone hyperopia : A condition in which visual images come to a focus behind the retina of the eye and vision is better for distant than for near objects -- called also farsightedness. axon hillock has high concentration of what voltage gated pumps : sodium and potassium how to calculate membrane potential : the outside of the neuron, the other side of the membrane is always zero ions inside neur...

iodine deficiency : goiter ethane : C2H6 propane : C3H8 butane : C4H10 methane : CH4 2 enantiomers : mirror image isomers hydroxyl : -OH carbonyl : C=O carboxyl : O=C-OH amino