In animal cells, lysosomes are the organelles in charge of digesting enzymes with nutrients that the cell consumes. If all the lysosomes in a cell were to break, what would would initially happen to the cell? A. Molecules within it would degrade. B. It would lose all the water in the cytoplasm. C. There would be no cellular respiration. D. No proteins would form.

What is the role of cholesterol in animal cell membranes? A. Blocks the association of the fatty acyl chains of phospholipids at high temperature. B. Is a receptor site for hormones on the surface of membranes. C. Broadens the temperature range of optimum membrane fluidity. D. Aids in the transport of small hydrophobic molecules across the membrane.    A fatty acid designated as 20:0 is ________, while one that is designated 20:3 delta ^5,8,11 is ________. A. complex; simple B. unsaturated; saturated C. saturated; unsaturated D. simple; complex E. monounsaturated; polyunsaturated

Which of the following is NOT true about mitochondria and chloroplast proteins? A. Proteins of both organelles are unfolded as they are transported. B. The proteins have N-terminal signal peptides C. The proteins need a proteins translocator D. The proteins remain unfolded once they cross the membranes E. Most of the proteins are encoded by nuclear genome

In addition to vitamin E succinate, which other fat-soluble vitamin has been shown to make lysosomal membranes more unstable and vulnerable to rupture (when consumed in large doses)? A. vitamin A (in the form of retinoic acid) B. vitamin B12 (in the form of cyanocobalamin) C. vitamin B2 (in the form of riboflavin) D. vitamin C (in the form of ascorbic acid) E. vitamin B1 (in the form of thiamine)