THE CELL
CELL THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
cell membrane, nucleus, and DNA
|
|
|
cell wall, flagella, and chloroplasts
|
|
|
cytoplasm, smooth and rough endoplasmic reticulum
|
|
|
cell membrane, ribosomes, and a chromosome
|
Detailed explanation-1: -Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide. Prokaryotes often have appendages (protrusions) on their surface.
Detailed explanation-2: -Prokaryotic cells only have a small range of organelles, generally only a plasma membrane and ribosomes.
Detailed explanation-3: -The distinction between prokaryotes and eukaryotes is considered to be the most important distinction among groups of organisms. Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not.
Detailed explanation-4: -Ribosomes are found in prokaryotic and eukaryotic cells; in mitochondria, chloroplasts and bacteria. Those found in prokaryotes are generally smaller than those in eukaryotes. Ribosomes in mitochondria and chloroplasts are similar in size to those in bacteria.