unit 1
what is the S.I system
The SI system of units is a revision of the metric system, which was first adopted in France in 1795
what does the eyepiece of a microscope do?
It magnifies the image
What is osmosis?
a process by which water diffuses across a selectively permeable membrane
A mass of cells formed from uncontrolled cell growth is called a tumor
What is the term for a mutation in which a wrong base is used in D.N.A?
Substitution
what is the scientific process
The scientific process, or scientific method, is the formal steps scientists follow to solve problems or answer questions
Why do cells divide?
The surface area of the membrane needs to be proportional to the volume of the cell contents if cells are to thrive and an organism is to grow larger. As a result, cells need to divide.
What is the difference between active transport and passive transport.
Active transport requires energy and passive transport does not
What happens during telophase.
During telophase, the nuclear membrane reforms around each set of chromosomes, and the spindle fibers are dismantled.
What is junk D.N.A?
a term used to describe DNA whose function is other than coding for proteins
what is an Atom
the smallest particles that make up the elements of matter
What is the purpose of a vacuole?
Some vacuoles temporarily store food or other materials, such as water.
What is ATPs full name?
adenosine triphosphate
How many alleles does an AB blood type have?
8