When testing the effect of molecular weight on diffusion, the
hydrochloric acid and ammonia molecules were placed at different
ends of a sealed tube. The ammonium chloride that formed when the
molecules diffused towards each other and met was closer to the
ammonia end of the tube. TRUE OR FALSE?
Diffusion continues to occur until there is an equal concentration
of particles on both sides of a semi-permeable membrane. TRUE OR
FALSE?
Diffusion is the spontaneous net movement of particles from an area
of lower concentration to an area of higher concentration. TRUE OR
FALSE?
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When testing the effect of molecular weight on diffusion, the hydrochloric acid and ammonia molecules were...
Diffusion is when molecules move from an area of high concentration to low concentration. True or False
21. The ______ prevents plants cells from bursting when place in a ____ solution. a) centrioles-hypotonic b) chloroplasts-hypertonic c) plasma membrane-hypertonic d) vacuole-hypertonic e) cell wall-hypotonic 22. Specialized cells like your own lung cells each lack which of the following organelles which are commonly found in an onion. a) cell membrane b)cell wall c)ribosomes d)nucleolus e) none of the above ______ 23. White blood cells engulf and destroy foreign particles by a process known as phagocytosis which is actually a)...
Experiment 2: Diffusion Concentration Gradients and Membrane Permeability Data Tables Table 2: Indicator Reagent Data Indicator Starch Positive Starch Negative Glucose Positive Glucose Negative Glucose Test Strip n/a n/a green yellow IKI Solution dark blue light brown n/a n/a Table 3: Diffusion of Starch and Glucose Over Time Indicator Dialysis Bag After 60 Minutes Beaker Water After 60 Minutes Glucose Test Strip yellow green ( if all glucose passed to the beaker from the bag) IKI from incolore changed to...
DATE: NURS 208A NAME: 1. The function of ribosomes is to: 6. Inb Digest foreign bacteria and toxic substances Produces energy from glucose y Aid in cell division Synthesize proteins Which of the following statement is false about the cell membrane? 2. Cell membrane is composed of phospholipid layer The cell membrane prefers large molecules to pass through freely Cell membrane is a semipermeable boundary which determines what can enter and ex the cell The exterior surface is hydrophilic phosphate...