AP BIOLOGY

THE CELL

STRUCTURE AND FUNCTION OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells which lack nuclear membrane are
A
eukaryotic cells
B
prokaryotic cells
C
single cells
D
multicells
Explanation: 

Detailed explanation-1: -Prokaryotic cells, such as bacteria, have a free-floating chromosome that is usually circular and is not enclosed in a nuclear membrane. Instead, the DNA simply exists in a region of the cell called the nucleoid. Prokaryotic cells only have a small range of organelles, generally only a plasma membrane and ribosomes.

Detailed explanation-2: -Final answer: Cells that lack nuclear membrane are prokaryotic cells.

Detailed explanation-3: -In prokaryotes, the DNA (chromosome) is in contact with the cellular cytoplasm and is not in a housed membrane-bound nucleus. In eukaryotes, however, the DNA takes the form of compact chromosomes separated from the rest of the cell by a nuclear membrane (also called a nuclear envelope).

Detailed explanation-4: -Prokaryotic cells do not have a nucleus. All cells can are classified as prokaryotic or eukaryotic based on their internal structure. Eukaryotic cells contain a nucleus-a structure enclosed in a membrane that contains the majority of the cell’s genetic material. Prokaryotic cells lack nuclei.

Detailed explanation-5: -Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

There is 1 question to complete.