← Biology Ch.6 (a) Test
Biology Ch.6 (a)
5 Written Questions
5 Matching Questions
- prokaryotic cell
- transmission electron microscope
- a the DNA is concentrated in the nucleoid
- b a prominent structure within the nondividing nucleus which appears through the electron microscope as a mass of densely stained granules of fibers adjoining part of the chromatin.
- c a semi fluid, jellylike substance
- d used to study the internal ultra structure of cells.
- e eat by engulfing smaller organisms or other food particles
5 Multiple Choice Questions
- a netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope
- surface has ribosomes
- - the boundary of every cell. Functions as the selective barrier that allows sufficient passage of oxygen, nutrients, and wastes to service the entire cell
- membrane-enclosed compartments
- the interior of a prokaryote cell
5 True/False Questions
central vacuole → pump excess water out of the cell, thereby maintaining a suitable concentration of ions and molecules inside the cell
glycoproteins → proteins that have carbohydrates covalently bonded to them
eukaryotic cell → the DNA is concentrated in the nucleoid
food vacuoles → develops by the coalescence of smaller vacuoles themselves derived from the GA and ER.
endoplasmic reticulum → consists of a network of membranous tubules and called cisternae. Site for protein synthesis.