Disulfide bridge - Study guides, Class notes & Summaries

In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. - answer-nucleoid A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus - answer-the nucleus In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) n...

Extracellular Matrix (ECM) - The ECM provides structural support to the cell and also plays a role in cell signaling. -Components: • Collagen • Glycoproteins (proteins with an oligosaccharide) • GAGs (long polysaccharide chains with amino sugars) • Proteoglycans (a core protein with one or more GAG chains connected) - Composed mostly of water. All of those proteins, glycoproteins, and proteoglycans are dissolved and assembled within a watery medium and most typically the protein ...

HAIR: Oregon State Board Practice Questions with Certified Solutions What ionic compounds are included in metal hydroxide relaxers? Sodium (Na), Potassium (K), and Lithium (Li) added to (OH) How much curl does a hard press remove? How many times is it pressed? 100 percent Twice on each side of the hair How much curl does a medium press remove? How many times is it pressed? 60 to 75 percent One time on each side with slightly more pressure How much curl does a soft press remove? How many times...

True/false, if false explain why Accessory pigments transfer excited electrons to the chlorophyll a molecules at the reaction center of PSII. - Answer False, accessory pigments transfer energy, but do not transfer electrons. Right, so the statement is False - electrons are NOT transferred True/false, if false explain why The flow of electrons through the ATP synthase is coupled to generating ATP. - Answer False, the flow of protons, NOT electrons, through the ATP synthase is coupled to gen...

MCB 2000 Exam 1 Alanine (ala) nonpolar aliphatic Glycine (gly) nonpolar aliphatic Valine (val) nonpolar aliphatic branched chain Leucine (leu) nonpolar aliphatic branched chain Isoleucine (ile) nonpolar aliphatic branched chain Proline (pro) nonpolar aliphatic ring structure that is not aromatic Phenylalanine (phe) nonpolar aromatic permits absorption of UV light at 280 nm Tyrosine (tyr) polar and nonpolar properties -amphipathic uncharged aromatic OH group Try...

Cosmetology Practice Exam 214 Questions with Verified Answers Bacteria - CORRECT ANSWER one celled microorganisms with both plant and animal characteristics Viruses - CORRECT ANSWER microorganism capable of infecting almost all plants and animals, including bacteria. Parasites - CORRECT ANSWER plant or animal organisms that live on, or in, another living organism and draw their nourishment from that organism. Must have a host to survive. Immunity - CORRECT ANSWER ability of the body ...

Biology 101 Exam 1 Questions With Verified Answers. Biology - answerStudy of life Basic Science (Discovery Science) - answerPrimarily focusing on finding out causes and explaining them; gaining knowledge for its own sake. Curiosity based. Applied Science - answerAnswer specific questions aimed at solving practical problems Properties of Life - answerOrder, Evolutionary Adaptation, Response to the Environment, Regulation (Homeostasis), Energy Processing, Growth and Development, Reproductio...

Activation Energy The energy required to start a chemical reaction. Amino acid An amino acid is a small molecule containing an amino group and a carboxylic acid group as well as a side chain of variable structure, called an R group Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Catalyst substances that speed up chemical reactions and remain unchanged by the reaction they facilitate Chaperones ...

The chirality of an amino acid results from the fact that its α carbon: A) has no net charge. B) is a carboxylic acid. C) is bonded to four different chemical groups. D) is in the L absolute configuration in naturally occurring proteins. E) is symmetric. C) is bonded to four different chemical groups. Of the 20 standard amino acids, only ___________ is not optically active. The reason is that its side chain ___________. A) alanine; is a simple methyl group B) glycine; is a hydrog...

Cosmetology written for NORTH CAROLINA Exam 99 Questions with Verified Answers Atoms - CORRECT ANSWER Atoms make up elements. Elements make up matter. Therefore, all matter is comprised of : Triangle - CORRECT ANSWER Base shape user within a half circle From side to side - CORRECT ANSWER As it sculpts hair, the moveable blade of the clipper moves Support - CORRECT ANSWER Not a main purpose of hair Fillers - CORRECT ANSWER Product used to equalize porosity of hair True skin - CO...