Which of the following choices correctly describes the co...
Which of the following choices correctly describes the composition of the cell membrane?
contains only lipids
contains lipids and protein
contains lipids and cytosol
contains only proteins
Correct answer is B
It consists of a lipid bi-layer with embedded proteins. The basic function of the cell membrane is to protect the cell from its surroundings.
The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.
In the diagram, the arrow labelled II represents the ...
The condition that encourages denitrification is ...
Which of the following statements is true about arthropods? ...
The organism designated P in the food chain above is normally sustained by energy from ...
Which of the following inherited conditions usually shows incomplete dominance? ...
The mineral nutrient that easily gets leached out of the soil is ...
Which of the following is not a constituent of blood plasma? ...
The correct base pairing for DNA is ...
The period of inactivity seen in some animals during long period of heat or drought is ...
A plant cell placed in a solution with a higher water potential will ...