Biochemistry

chemical formula for water H₂O polar molecule molecule has positive and negative sides DUE to unequal sharing of electrons examples of polar molecules salt, sugar, water non-polar molecule molecule that shares electrons equally and does not have oppositely charged ends examples of non-polar molecules oils, fats, waxes cohesion attraction between like molecules (two water molecules) adhesion attraction between unlike molecules (water and glass) meniscus curved water line at top o...

How many elements have been found to occur in nature? 92 Living organisms are made up of energy and matter. True or false? True Why is chemistry important in the study of biology? The body is composed of chemical elements. Chemical reactions occur in the body. Chemistry studies matter and energy. The most abundant elements in the body are _____. hydrogen, carbon, nitrogen, oxygen This element is needed for cellular respiration. oxygen Elements abundant in the body are not abundant on...

Histones are _________ Charged and are rich in _________ Amino Acids - Positively - Lysine and Arginine "LA" DNA Methylation occurs on which Nucleotides? Cytosine and Adenine Cytosine is _________ and turned to Uracil Deaminated Cytosine → Uracil Add ________ to Uracil to form _________ Methyl Group Thymine Uracil → Thymine Purine Synthesis requires GAG - Glycine - Aspartate - Glutamine Pyrimidine Synthesis Requires - Aspartate - Carbamoyl Phosphate - Leflunomid...

BIOCHEMISTRY LAB REPORT 4 2023

BIOCHEMISTRY LAB REPORT 4 2023

Major Classes of Biological molecules carbohydrates, lipids, proteins, nucleic acids Elements found in biological molecules H, Na, Mg, K, Ca, C, N, O, P, S, Cl, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Se, I, Mo, W Common functional groups in biological molecules -Methyl -Ethyl -Phenyl -Carbonyl -Ether -Ester -Acetyl -Anhydride -Guanidinium -Imidazole -Sulfhydryl -Disulfide Name common linkages in biological molecules Structural features of carbohydrates Linear but most of the times for...

Conversion of CO2 to organic compounds by a wide variety of living organisms is referred to as A. photoablation. B. ossification. C. photosynthesis. D. sequestration. E. carbon fixation E. carbon fixation Reduced molecules become _____ upon donating an electron in a redox reaction. A. saturated B. bound to oxygen C. oxidized D. reduced C. oxidized Given equal masses (the same number of moles of a compound), which phase of matter has the greatest entropy? Gas Which of the follo...

weaker the higher the dielectric constant, the (stronger/weaker) the interaction between charges stronger alcohol causes dehydration, which leads to (stronger/weaker) charges in the body cooling high heat capacity of water has what affect on the body? high heat of vaporization what property of water helps prevent dehydration? high does water have a high or low dielectric constant? clathrate molecules of one component are physically trapped within the crystal structure of another (ex. ...

In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. C) 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. E) the nucleus. In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope. C) nucleolus. D) nucleoplasm. E) nucleos...

Thermodynamics the study of energy transformations first law of thermodynamics -Interconverted -Energy is conserved second law of thermodynamics Universe tends towards maximum disorder -All physical and chemical processes -Maintain homeostasis Entropy -Change in randomness or disorder of reactants to products Enthalpy the heat content of a system Bioenergetics The field of bio chem concerned with energy free energy energy that is available to do work - Approaches 0 as equilibriu...