In what way might the membranes of different cells be unique? Phospholipids can be found in only certain membranes Only certain membranes are selectively permeable Certain proteins are unique to each membrane Certain membranes are constructed from only amphipathic molecules

Proteins are inserted into the structure of a cell's plasma membrane. Which of the following would not be a function of these membrane proteins? forming channels acting as receptors forming the entire glycocalyx anchoring cells to other structures MacBook Pro

What molecule forms channels in the phospholipid bilayer?  Group of answer choices proteins lipids carbohydrates nucleic acids

Which of the following adaptations compensates for one of the disadvantages of being multicellular? (think carefully before answering!)     Semi-permeable membranes     Cytoskeleton     Extracellular matrix     All of the above

Each of the following is a function of membranes except defining cell and organelle boundaries. information storage. regulation of transport. cell-cell communication. sites for specific biochemical functions.

As part of their function, membrane-bound organelles, such as mitochondria and the en- doplasmic reticulum, must move substances across their membranes. Which of the following statements best describes a feature shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their functions? A B с D double membranes, in which one membrane encloses the other rigid and nonfluid membranes membranes composed of carbohydrates highly folded membranes

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

Which statement below is corredt when comparing plant and animal cells? O Plant cells only have a cell wall, and animal cells only have a plasma membrane. Plant cells only have a plasma membrane, and animal cells only have a cell wall. Both plant and animal cells have a plasma membrane, and plant cells also have a cell wall. O Both plant and animal cells have a plasma membrane and a cell wall. O Both plant and animal cells have a cell wall, but only animal cells have a plasma membrane. 1 ntc

the cell membrane is made of a phospholipid bilayer what does the phopholipid bilayer provide for the cell

Which of the following does NOT accurately represent a difference between mucous membranes and skin?   Question options:   both layers of cells in mucous membranes are alive, whereas one layer in skin is largely dead   mucous membranes are wet, whereas human skin is dry   mucous membranes secrete mucus and skin does not   skin covers the outer body, while mucous membranes cover cavities open to the outside   the outer layer of a mucous membrane is thicker than the outer layer of skin   all these statements are TRUE