Blog

One organelle, called the _______________, contains enzymes that digest worn out parts of cells.A) ribosomeB) lysosomeC) vacuolesD) endoplasmic reticulumE) centriole

The main difference between prokaryotic cells and eukaryotic cells is A. prokaryotic cells have more internal, membrane-bound compartments than eukaryotic cells. B. eukaryotic cells have membrane-bound subcellular compartments, called organelles, and prokaryotic cells do not. C. prokaryotic cells have linear DNA and eukaryotic cells have circular DNA. D. prokaryotic cells have a nucleus and eukaryotic cells do not. E. eukaryotic cells contain double-stranded DNA while prokaryotic cells do not

Which organic compound is not only responsible for energy storage, but also can provide thermal insulation?a. lipidsb. proteinsc. nucleic acidsd. carbohydratese. monosaccharides

. The major functions of the plasma membrane do NOT include A. separation of the fluid environments inside and outside the cell.B. regulation of molecules and ions that pass into and out of the cell.C. recognition and communication between different cells and tissues.D. maintaining connections between adjacent cells.E. production of proteins used in construction of the cell wall.

The _____ charge of a proton is exactly balanced by the _____ charge of a(an) _____ A. Negative; positive; electron B. Positive; neutral; neutron C. Positive; negative; electron D. Neutral; negative; electron

The second shell of atom can hold a maximum of____electrons a. two b. four c. eight d. sixteen

Bonus question

Bonus   Which is NOT true of eukaryotic cells? A. A true nucleus contains the chromosomes.B. Eukaryotic cells contain membrane-bounded compartments.C. They contain ribosomes that are smaller than those of prokaryotic cells.D. They all contain mitochondria.E. They contain many organelles in the cytoplasm.

Which of the following help in defending humans against disease? A. immunoglobulins (antibodies)B. lysosomesC. peroxisomesD. All of the choices help defend against disease.

Glycogen is to animal cells as ________ is to plant cells. A. lipid B. cellulose C. starch D. protein E. sugar