Booker 1
Speed up chemical reactions
What is enzymes
Very long organic molecules that carry out all of the functions of life
What is nucleic acids
Within the nucleus, DNA and proteins form threadlike structures called
What is chromosomes
Exact copy of the DNA in its nucleus in a process called
What is replication
Compounds that are made mostly of carbon and hydrogen and some oxygen
What is lipids
Energy rich organic compounds made of the elements carbon, hydrogen and oxygen
What is carbohydrates
The movement of dissolved materials across a cell membrane without using the cell's energy
What is passive transport
Two cylindrical structures call centrioles are copied
What is interphase
Movement of materials across a cell membrane using cellular energy
What is active trasnport
The cell's nucleus divides into two new nuclei and one set of DNA is distributed into each daughter cell.
What is mitosis
Some substances can cross the membrane while others cannot
What is selectively permeable
The centromere of each chromosome splits pulling the chromatids apart
What is anaphase
Large, organic molecules made of carbon, hydrogen, oxygen, nitrogen and in some cases sulfur.
What is protein
Interphase, Growing, Copying DNA and Preparing for Divison
What is the Cell cycle
The cell membrane changes shape and engulfs the particle
What is endocytosis
Diffusion of water molecules across a selectively permeable membrane
What is osmosis
A cell grow, prepares for division and divides into two new cells, which are called daughter cells
What is the cell cycle
In osmosis when water moves in and out quickly the cell membrane shrinks and the cell membrane pulls away from the cell wall, what happens
What is the cells can die
The process that allows large particles to leave the cell membrane
What is exocytosis
the genetic material that carries information about an organism and is passed from parent to offspring
What is DNA
Any substance that cannot be broken down into simple substances
What is an element
Process by which molecules move from an area of higher concentration to an area of lower concentration
What is diffusion
How much of the human body is water
What is 2/3
The shape of a DNA molecule
What is a double helix
The final stage of the cell cycle
What is cytokinesis