Conjugated bonds - 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...

Physiology - correct answer The study of the normal functioning of a living organism and its component parts, including all its chemical and physical processes. Levels of Organization in the Human Body - correct answer 1. Atoms 2. Molecules 3. Organelles 4. Cells 5. Tissues 6. Organs 7. Organs Systems 8. Organisms The Organ Systems of the Human Body - correct answer ...

BIOC 3560 Midterm Exam Questions With Answers Latest 2023/2024. Which statement is false with respect to enzyme phosphorylation? (A) The modification is irreversible. *** (B) The modification is covalent. (C) Addition and removal is mediated by different enzymes. (D) Phosphorylation can occur on His residues. (E) I was sleeping when you asked this Kahoot question. 3. In oxygenated myoglobin, a co-ordination bond is formed with which residue? (A) His E7 (B) Leu E7 (C) His F8 *** (D) Leu...

Biochemistry: Concepts and Connections (Appling et al.) Chapter 1 Biochemistry and the Language of Chemistry 1) The water content in the human body is approximately: A) 90%. B) 80%. C) 70%. D) 60%. E) 50%. Answer: C 2) The four most abundant chemical elements in living systems are: A) hydrogen, oxygen, sulfur and phosphorus. B) hydrogen, carbon, nitrogen and oxygen. C) sodium, potassium, carbon and oxygen. D) sodium, potassium, nitrogen and sulfur. E) carbon, nitrogen, oxygen and potassium. Answ...

What are the useful properties of water and why ? - answer-1) Water is a metabolite - in many metabolic reactions including condensation and hydrolysis 2) Water is a solvent - medium in which enzyme catalysed reactions take place (metabolic reactions ) and readily dissolves substances like inorganic ions ( as water is dipolar so totally surrounds the ions) , excretory products (urea/ammonia) , respiratory gases and small hydrophilic molecules ( amino acids , etc) 3) Water has a high latent he...

What are the four rules for writing resonance structures? Correct Answer 1. Atoms must not be moved. Only electrons. 2. All resonance atoms must lie in the same plane. 3. Only valid Lewis structures are allowed. 4 . The number of unpaired electrons must remain constant. What are the two conditions for resonance? Correct Answer 1. An atom must have a P orbital or a lone pair of electrons. 2. It must be single bonded to an atom that has a double or triple bond. The latter comprom...

What are the four rules for writing resonance structures? Correct Answer 1. Atoms must not be moved. Only electrons. 2. All resonance atoms must lie in the same plane. 3. Only valid Lewis structures are allowed. 4 . The number of unpaired electrons must remain constant. What are the two conditions for resonance? Correct Answer 1. An atom must have a P orbital or a lone pair of electrons. 2. It must be single bonded to an atom that has a double or triple bond. The latter comprom...

Energy sources - Answer Carbs and protein= 4 cal/gram; fat= 9 cal/gram; the brain uses glucose for energy, uses ketone bodies during starvation Tissue storage of glucose - Answer Muscles and liver= store glycogen; adipose tissue= fat; cellular mass= protein stores Gluconeogenesis= conversion of non-carb sources into glucose by glycerol and amino acids Homeostasis - Answer Keeps the internal environment/temp of the body at a state of equilibrium Cellular oxidation - Answer Enzymes= pro...

An organism - answer-Photoautotroph Which of the following is not one of the size major elements microbes need to survive, grow, and reproduce - answer-Calcium A microbe that does not require oxygen for metabolism but will use it if it is available - answer-Facultative anaerobe A pathogen would most accurately be described as a - answer-Parasite T or F Passive transport requires a gradient? - answer-True A cell exposed to a hypertonic environment will _______ by osmosis - answer...

ACS Biochemistry Exam Questions With Complete Solutions Metabolism (catabolism and anabolism) - ANSWERS Metabolism: sum of total chemical reactions in an organism, also the method by which cells extract and use energy from their environment. Catabolism: The process by which stored nutrients and ingested foods are converted to a usable form of energy. It produces simple products CO2, H2O, NH3, and building blocks such as sugars and fats that are used in anabolism. Anabolism: t...