Ch.1 Cell: the Basic Unit of Life

Question 1

cell

Answer 1

in biology, the smallest unit of that can preform all life processes; cells are covered by a membrane and have DNA and cytoplasm

Question 2

cell membrane

Answer 2

a phospholipid layer that covers a cell´s surface; acts as a barrier between the inside of a cell and the cells environment

Question 3

organelle

Answer 3

one of the small bodies in the cell´s cytoplasm that are specialized to preform a specific function

Question 4

nucleus

Answer 4

in a eukaryotic cell, a membrane-bound organelle that contains DNA and that has a role in the processes such as growth, metabolism, and reproduction

Question 5

prokaryote

Answer 5

an organism that consists of a single cell that does not have a nucleus

Question 6

eukaryote

Answer 6

an organism made of cells that have a nucleus enclosed by a membrane ; eukaryotess include animals, plants, and fungi, but not archaebacteria or eubacteria