control center inside the cell, contains the cell's genetic DNA material and controls the cell's activities.
how many parts are their of the nucleus
four parts to the nucleus
proteins and lipids make it up semi-permeable Job: controls what enters and leaves the nucleus
gel-like substance made up of salts and proteins job: medium that contains two of the other nuclear structures
a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
small region in the nucleus where the assembly of ribosomes begins. Func: Codes for the RNA
What do the genes code for?
What does the enzyme do in terms of genes?
enzymes control the chemistry that brings about the approximate trait
the streaming movement of a cytoplasm
a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins.
releases energy and produces ATP using energy stored in food molecules POWERHOUSE
small particles in the cell where proteins made Rna and protein are assembled, or protein synthesis
a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.
packages proteins to be used in the cell when needed has ribosomes attached
package proteins in the cell to be used when needed does not have any ribosomes attached
stack of membranes in the cell which enemies attach carbohydrates and lips to proteins
filled with digestive enzymes that surround and break down worn out cell parts
thin flexible outer layer that protects and surrounds the cell and REGULATES what enters and leaves the cell
a strong layer around the cell membrane in plants, algae, and some bacteria
a threadlike structures in the nucleus that contains the genetic information passed from one generation to the next
uses energy from the sunlight to make energy-rich food molecules by photosynthesis
an organelle near the nucleus of a cell that contains the centrioles (in animal cells) and from which the spindle fibers develop in cell division.
are the site of manufacture and storage of important chemical compounds used by the plant cell
contains any non green pigment
the typical yellow pigments of leaves. These are oxygenated carotenoids that are synthesized within the plastids.
What are examples of chromoplasts
red roses, carotenes
colorless with no pigments at all, stored in starches
The outermost, noncellular, protective covering of certain organisms. In plants it is the wax over leaves and in animals it is cynin
True or false: The cell wall is impermeable
false: It is permeable