In eukaryotes, fatty acids are stored as triglycerides in cells that have A) Golgi that store fatty acids B) too little atp C) Lysosomes that synthesize glycogen from excess glucose D) Liposomes that contain an enzyme that performs dehydration synthesis E) mRNA that makes amino acids in to fat Explain why

During aerobic respiration, high energy electrons are taken from glucose and transferred to electron carriers. The cell then uses the energy from these electrons to: O A) produce carbon dioxide B) produce oxygen C) pump hydrogen ions across the inner mitochondrial membrane D) reduce electron carriers E) make glucose

32. The antimetabolites inhibit: a) the ribosome assembly b) the ribosome movement c) cell respiration d) glycolysis e) the Krebs cycle

Which of the following factors does NOT help cells survive and grow well in an AEROBIC environment?   a) Superoxide Dismutase b) Catalase c) Peroxidase d) Hydroxyl radicals e) Thioglycolate

The peptide bond on the C=O side of bulky hydrophobic residues is cleaved by a) Trypsin b) RNase H c) succinate dehydrogenase d) chymotrypsin e) Factor VIII ( explanation not needed) thank you

Which of the following proteins would NOT be made on ribosomes that are bound to the rough endoplasmic reticulum? a) a digestive protein that is found inside a lysosome b) an ion channel protein that is inserted into the cell membrane. c) insulin protein, which is secreted from the cell. d) a protein that becomes part of the cytoskeleton

The most abundant element, by mass, in living organisms is: a) C b)  O  c)  N  d)  Na Which of these molecules is a polymeric macromolecule? A) glucose   b)  urea  c)  citric acid  d)  albumin (a protein) A polymeric macromolecule which consists of glucose monomer units is: a) glycogen  b)    albumin   c)  phosphatidyl choline   d)  cholesterol

Endoplasmic reticulum (ER) is the site of all the following EXCEPT A) drug detoxification by means of mixed-function oxidases B) synthesis of proteins that are secreted from the cell C) N-linked glycosylation of newly formed polypeptides   D)Ca2+ storage in muscle tissues   E) hydrolytic activities carried out by acid hydrolases Option 6

Trypsin catalyzes the cleavage of: a) all peptide bonds b)  peptide bonds after Lys or Arg   c) peptide bonds before Lys or Arg  d)  peptide bonds after Met Papain catalyzes the cleavage of: a) all peptide bonds b)  peptide bonds after Lys or Arg   c) peptide bonds before Lys or Arg  d)  peptide bonds after Met The molecule which binds to an enzyme and undergoes chemical reaction is called a: a)  substrate   b)  cofactor   c)  coenzyme  d)  prosthetic group A metal ion which binds to an enzyme and assists it in catalysis is called: a) substrate   b)  cofactor   c)  coenzyme  d)  prosthetic group Proteases are a subclass of which larger class? A)  isomerases   b)  oxidoreductases   c)  lyases  d)  hydrolases Transferases which catalyze the transfer of a phosphate group are called: a) lyases  b)  ligases  c)  kinases  d)  phosphatases

Many eukaryote cells are NOT able to synthesize (make their own) the amino acids that they require to conduct life processes. When such a cell is placed in an aqueous (water) solution containing the 20 essential amino acids, one would expect that a) nothing would happen. b) amino acids would be moved into the cell by specific membrane transport proteins.  c) H2O would dissolve in the membrane. d) the cell would make Glucose into amino acids. e) the cell would divide.