SCIENCE
CELL BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
ribosomes
|
|
|
cytoplasm
|
|
|
cell membrane
|
|
|
all of the above
|
Detailed explanation-1: -Although cells are diverse, all cells have certain parts in common. These parts include a plasma membrane, cytoplasm, ribosomes, and DNA. The plasma membrane (also called the cell membrane) is a thin coat of phospholipids that surrounds a cell.
Detailed explanation-2: -All living cells, prokaryotic and eukaryotic, have a plasma membrane that encloses their contents and serves as a semi-porous barrier to the outside environment. The membrane acts as a boundary, holding the cell constituents together and keeping other substances from entering.
Detailed explanation-3: -All cells have a plasma membrane, cytoplasm, ribosomes, and DNA.
Detailed explanation-4: -Companion cell is the only living tissue among the given choices. Rest all are dead tissues. Companion cells are found along with sieve tube elements in the phloem tissue.