In an atom, the number of protons always equals the number of ?
Electrons
The atomic number of an atom is determined by the number of?
Protons
These are basic building blocks of matter that cannot be further broken down by ordinary chemicl means?
Elements
The substance, such as iodine 131 can be used in medicine to produce various images of organs and tissues?
Tracers
Two of more atoms that combine are defined as?
molecule
The biologically important properties of water are
High heat of vaporization
Polarity
Water being liquid at room temperature
Hydrogen bonding
The building blocks molecules of polysaccharides are?
Monosaccharides
Proteins are comprised of?
Amino acids
These are the fundamental units that make up all living things?
Cells
Choose the correct statement concerning cell surface or volume ratios?
A. ) All of the choices are correct
The phospholipid bilayer that surrounds/ maintains the integrity of a cell is called a?
Plasma Membrane
This is the structure found in eukaryotic celss that houses the genetic material?
Nucleus
The contemporary description of the membrane structure of a cell is know as the ?
Fluid-mosaic model
Why is cell division imprtant as related to the size of cells?
cell division restores the amount of surface area needed for exchange requirements
Brad placed a water plant called Elodea in some distilled water. What happened in the cells of the plant?
A.) turned blue
B.) shrunk
C.) did not change
D.) burst
The cells burst
If a cell lacked ribosomes, it would not be able to?
synthesize proteins
Whci one of the following is not part of the cytoskeleton?
B. ) microbodies
Specialized cells that work together to perform a common function, are called?
tissues
This tissue bind structures together and provides structural support?
connective
This involves uncontrollable cell division?
cancer
In a given population why are carcinomas and leukemiaz occuring at a higer incidence than sarcomas?
epithelial tissue and blood have a higher rate of cell division
The protein provides flexibility and strength to connective tissues?
collagen
By dieting you can reduce the number of fat cells your body had?
True or False
False
The cartilage can be found at the ends of the long bones, ribs, and respiratory passages?
hyaline
Fragments of cells that form a plug, sealing holes in injured vessels during blood clotting are?
platelets
Wes noticed that during an infection, his lymph nodes?
