If a small part of the cell membrane surrounds a molecule so that it can enter a cell, then the transport method must be OEndocytosis Passive diffusion O Facilitated diffusion O Active transport O Osmosis

Bacterial Cell Membrane: Because of the unique structure of the cell membrane, the membrane is described as a propery essential for life of the cell. easily frozen at low temperatures selectively permeable easily melted at high temperatures O indestructible

Which of the following is the primary component of the plasma membrane? Cholesterol Glycolipids Phospholipids Integral proteins

In vertebrates, which cell-cell junction allows for direct chemical communication between adjacent cell cytoplasms, without contact with the extracellular fluid, and is composed of the transmembrane protein connexin? O Desmosome O Gap junctions O Adherens junctions O Tight junctions O Focal adhesions

* Cell drinking is referred to as - Pinocytosis Endocytosis Exоcytosis O Phagocytosis O

During mating season, males of certain species will perform displays of aggression toward other males when approached while they are courting a female. This type of behavior is an example of     altruistic behavior     agonistic behavior     fixed action pattern     polygamous behavior     predatory behavior   The capacity to make changes in behavior on the basis of experience is known as     a fixed action.     learning.     habituation.     conditioning.   Which of the following statements is not true concerning the optimal foraging theory?      forager tries to maximize the energy gained     forager tries to minimize the energy expended     forager secures essential nutrients     forager tries to minimize the risk of getting eaten while gathering food     forager contributes to the growth of its population by gathering food

Proteins that will be exported from the cell are synthesized by which of the following cellular components? Rough ER Free cytoplasmic ribosomes Lysosomes Golgi vesicles  Smooth ER

the structure of the plasma membrane is best described as: two layers of phospholipids stacked on top of each other, with proteins embedded in the phospholipids Oa single layer of proteins and polysachharides mixed together two layers of proteins stacked on top of each other O many sheets of peptidoglycan stacked on top of each other O one layer of triglycerides on top of a layer of proteins

How is transport across the cell membrane controlled? Diffusion Concentration gradient Permeability What can and can not diffuse through plasma membrane? Factors affecting diffusion: concentration gradient, temperature, molecule size, surface area

Which of the following pairs is mismatched? cell membrane/lipid bilayer Onucleolus/ribosomal RNA Olysosome/protein synthesis O cytoskeleton/microtubules