Flashcards in Chapter 3 Deck (112)
Ribosomes are comprised of RNA that has been synthesized directly by the what?
Hydrostatic refers to the pressure of the what?
The process in which a single cell can produce daughter cells that are different from each other?
Movement of particles from higher to lower concentrations through a membrane, such as in dialysis, occurs by what?
Diffusion (filtration uses either gravity or pressure)
What functions as a sac-like or tubular network of structures that provides transport?
Cells use up to 40% of their daily energy expenditure engaged in what important process?
Active transport (Active transport requires a lot of ATP)
Normal isotonic sodium chloride solution is __%.
The type of proteins that guide cells on the move in the bloodstream to their destination ar a wound site are called what?
Cell adhesion molecules (cell adhesion molecules stop cells that are moving)
The golgi apparatus is involved in doing what to the cell membrane?
Modifying it, but not producing it.
During hyperplasia, cells are dividing at a rapid rate and may progress toward what kind of state?
The following are inclusions except which one? Glycogen, melanin, lipids, vesicles.
Chromatin is the term for the loosley coiled appearance of WHAT in a non-dividing cell?
True or false: The cell membrane is made up of a phospholipid monolayer?
False (It is made up of a phospholibit BILAYER)
Molecules soluable in WHAT can pass through the fatty acid portion of the cell membrane unassisted?
Lipids (like dissolves like)
Particles that are dissolved in a media are refered to as the what?
Areas of tubular channels that interconnect cardiac muscles as well as muscle in the digestive tract are called what?
The process called what explains how embryonic cells become specialized and diverse?
The phase of mitosis when the chromosomes align at the equator is called what?
The movement of particles from higher to lower concentration is termed what?
The protein ACTIN, which results in some type of movement or contraction, is found where?
In the microfilaments. (Cilia cause movements but do not contain actin.)
What is the source of most of the cell's energy?
Which chemicals on the surface of cells function to attach to and recognize hormones?
During differentiation, certain genes are what while others are activated?
A transmission electron microscope can magnify a cell how many times?
Which organelle consists of microtubules and functions both in distributing chromosomes during cell division and in forming portions of cilia and flagella?
In what stage of mitosis do the centromeres and chromosomes pull apart and begin migration towards the poles?
Hypertonic solutions tend to cause cells to do what?
Shrink (Cells will lose water and shrink in a hypertonic media because of the high osmotic pressure)
Anabolism, catabolism, and cellular respiration are all individual parts of what?
In receptor-mediated endocytosis, an LDL particle of cholesterol is attracted to cells that contain what?