Proscholar

Hydrogen correct answers Water molecules are attached to each other and form ____________________ bonds. Oxygen correct answers Sodium (Na+) will be attracted to what portion of a water molecule? Covalent correct answers A bond in which electrons are shared between atoms is a ___________________ bond. True correct answers True or False: Random movement of molecules in solution from areas of high concentration to those of lower concentration is known as diffusion. Both hydrophobic and...

Water correct answers H2O, molecular weight=18, oxygen is partial negative charge, hydrogen has slight positive charge. What is a dipole moment? correct answers difference in charge on two ends of a molecule Anions correct answers negatively charged ions Cations correct answers positively charged ions covalent bond correct answers A chemical bond formed when two atoms share electrons hydrogen bond correct answers Attraction between a slightly positive hydrogen atom and a slightly ...

An experiment is performed in which the sequence of bases coding for the signal peptide is deleted from an mRNA molecule which codes for a lysosomal enzyme. When this mRNA is expressed in a cell, the resulting protein would be expected to be found in the: correct answers Cytoplasm Which of th following is not a typical component of biological membranes in eukaryotic cells? a. proteins that span the lipid bilayer b. fatty acids linked to glycerol by ester bonds c. triglycerides d. phosphol...

What sex determinants are present in females (XX)? correct answers Rspo1 and Wnt4/Betacatenin What sex determinants are present in males (XY)? correct answers Sry and Sox9 Primoridal Germ Cell (PGC) differentiation in XX correct answers Mesonephros --> Retinoic Acid --> Gonad --> no CYP26B1 --> Meiotic entry PGCs Primoridal Germ Cell (PGC) differentiation in XY correct answers Mesonephros --> Retinoic Acid --> Gonad -->CYP26B1 --> No Meiotic entry PGCs True or...

C correct answers Between the time when pre mRNA is generated and when introns are removed from it, a type of RNA called SnoRNA adds a methyl group to some bases in the pre mRNA. From what you know about RNA Processing, you would expect these enzymes to function in the: a. smooth ER b. rough ER c. nucleus d. cytoplasm e. a and b are correct A correct answers The name for cadherins is derived from the observation that extracellular Ca2+ is needed for cells to adhere tightly to one anot...

diffusion limits correct answers distance from oxygen or nutrition source arteries correct answers lead away from the heart (ox) veins correct answers carry blood to the heart (deox); return vessels capillaries correct answers where oxygen, carbon dioxide, nutrients and metabolites are exchanged; cap bed=exchange tubes fish cardiovascular system: atrium correct answers recieves blood from the systematic vasculature; sends deox blood to the gills fish cardiovascular system: ventric...

The anticodon on the tRNA for alanine is CGU and the anticodon for threonine is UGU. What is the base change that resulted in the SLC245A mutation? correct answers - cytosine to thymine The codons for arginine include CGA, CGC, CGG and CGU. what is the base change in the anticodon that results in the amino acid switch from the ancestral African form to the East Asian pattern of pigmentation from this mutation in the OCA2 gene? correct answers - uracil to cytosine from the passage, which of...

protein, urea correct answers In mammals, most of the ammonia, which is the result of metabolizing _____ is converted to _____ in the liver. sodium, glucose and amino acids correct answers In the kidney and SI, high concentrations of _____ permit the resorption of _____. cytoplasmic protein, cells of the dct correct answers the aldosterone receptor is a _____ found in the _____ basilar membranes of epithelial cells correct answers In the dct, the na/k atpase pumps are located in the: ...

Epithelial cells of the alveoli are covered by a layer of water that does what to surface tension? correct answers Increases Damage to the lower motor neurons of C3, C4 and C5 (Phrenic nerve) has what effect? correct answers Paralysis of the diaphram T or F: Elastic recoil of the lungs to their original volume is an active process correct answers False What is the function of Type I pneumocytes? correct answers Responsible for gas exchange that takes place in the aleveoli By decreasi...

in mammals, most of ammonia, which is the result of metabolizing __________, is converted to ________ in the liver correct answers protein, urea Na-driven cotransporters for glucose are found in epithelial cells in the correct answers enterocytes of the duodenum and jujenum epithelial cells of the proximal convoluted tubule amino acids exit epithelial cells in the proximal convoluted tubule by correct answers diffusion down a concentration gradient through transmembrane facilitated transp...