Unit 2 - Cell Structure & Division

Name:

(1) are the basic building blocks of the body from which all larger parts are formed.
(2) are long, threadlike strands of a substance called chromatin which is made up of DNA.
(3) is cell division which creates four daughter cells having half the genetic material of the parent cell.
(4) are proteins which make up genes which control the passing on of characteristics from parents to offspring.
(5) are sex cells, ova or sperm, resulting from meiosis which form a zygote after fertilization.
(6) are the molecules adenine, cytosine, guanine, and thymine which make up DNA.
(7) are strings of amino acids used by the body to build new cells and tissues.
(8) is cell division which creates two daughter cells with nuclei identical to the parent cell.
(9) is the process in which DNA makes a copy of itself before cell division.
A/An (10) is a small structure found in the cytoplasm which has a particular job to do.
The (11) is a network of membranes with pouches that store proteins and help channel substances to various parts of the cell.
A/An (12) is a round body containing enzymes that can break down many substances.
A/An (13) is the power plant of the cell which converts food into energy the cell uses to grow, divide, and do its work.
A/An (14) is the cell's center of protein production.
The (15) is a thin covering which encloses the cell and regulates substances that pass through it.
The (16) is a jelly-like material which fills the cell
The (17) is the control center of a cell which directs all its activities.
The (18) is a flat membrane sac that processes proteins and other substances produced in the cell.