Atoms and Molecules
Anything that has mass and takes up space
matter
Is salt (NaCl) an element or a compound?
compound
What 2 compounds make up the sides (backbone) of DNA?
Sugar and Phosphate
The diffusion of water across a cell membrane.
osmosis
The ability to cause change?
Energy
Who was the scientist that took the picture that showed DNA is a double helix?
Rosalind Franklin
What are the 4 nitrogen bases found in DNA?
Adenine
Thymine
Guanine
Cytosine
The expulsion or secretion of materials from a cell. (Exit)
Exocytosis
One kind of atom; simplest form
Element
Which of the following bases is not included in DNA:
Adenine
Uracil
Thymine
Guanine
Cytosine
Uracil
How do the nitrogen bases always pair up?
Adenine – Thymine
Cytosine - Guanine
Movement of materials through a membrane against a concentration gradient and requires energy from the cell.
Active Transport
Made of 2 or more elements
Compound
What form of cellular transport brings large particles into the cell by engulfing it in the membrane?
Endocytosis
What is the name of the shape of DNA? Looks like a twisted ladder.
Double Helix
When a cell uses no energy to move particles across a membrane.
Passive transport
Why is the hydrogen molecule an element, but water is a compound
Hydrogen is only made of one kind of atom so it is an element.
Water is made of more than one type of elements so it is a compound.
What form of cellular transport expels large particles out of the cell?
Exocytosis
Create the complimentary strand of DNA for:
TAAGGCA
ATTCCGT
Passive transport of materials across a membrane using transport proteins.
Facilitated diffusion