Cells A_M1

17 cards·by jennybakalov

cells

basic unit of structure and function of all living things

three major cell parts

cell membrane, nucleus, and cytoplasm

cell (plasma) membrane

surrounds every cell to separate its cytoplasm (a cell's internal fluid surrounding the organelles) from its outside environment

selective semipermeable membrane

the part of the cell membrane that regulates what comes in and what leaves the cell

bi-lipid

double layer of fatty substances like cholestrol

nucleus (little body)

a vital organelle (cell structures which help cell's function) within a cell; controls cell activities; facilitates cell division

Where is the nucleus of a cell usually located?

centrally

In the nucleus of a cell, what readily absorbs stains?

DNA and protein

What surrounds the nucleus of a cell?

nuclear membrane

chromatin

loose and diffuse state of arrangement of DNA and proteins within the nucleus

chromosomes

short, rodlike structures formed when chromatin condenses; specific number in the nucleus of each species; visible during nuclear division

mitosis

cell division consisting of 2 phases

mitosis (first step of cell division)

exact duplication of nucleus to form two identical nuclei

cytoplasmic division

occurs after nuclear division

nuclear membrane (nuclear envelope)

double-layered membrane with pores at regular intervals for material exchange between thenucleus and the cytoplasm

nucleoplasm

the clear, semi-fluid medium filling spaces around the chromatin and nucleoli

nucleolus/nucleoli

a small, round body found within the nucleus