knowledge review #2

NAME:

1. Your mouth is dry from rushing to class. You pop a piece of chewing gum into your mouth, and start chewing. Your mouth begins to get moist. Name & explain the process that has taken place. [2 pts]

osmosisis the process that has taken place.the solutes of the gum, caused an influx of saliva to the mouth to dilute and distribute them.

2. Imagine the cell as a factory. Which of the organelles is/are most compatible to the assembly line and which to the shipping department? Defend your answer. [3 pts]

The endoplasmic reticulum, both smooth and rough, are more compatible to the assembly line, making lipids, carbohydrates and protein molecules.The ribosomes can also be thought of in this manner.The Golgi apparatus is more like the shipping department; it is responsible for putting the ‘order’ together and releasing to either the cell’s environment or to the organism’s environment for delivery.

TRUE OR FALSE(1 pt each)

T / FCILIA ARE LONG AND ACT TO PROPEL CELLS, WHILE FLAGELLA ARE SHORT AND ACT 

TO MOVE MATERIALS OVER CELL SURFACES

T / FA DAMAGED EPITHELIUM WILL USUALLY BLEED EXCESSIVELY

T / FA TRANSITIONAL EPITHELIUM HAS MULTIPLE LAYERS AND IS MOST LIKELY TO EXHIBIT A PROTECTIVE FUNCTION

T / FTRANSPORT OF A SUGAR ACROSS A CELL MEMBRANE REQUIRES ENERGY

T / FFROM A SURFACE VIEW, CELLS THAT LOOK LIKE FRIED EGGS LAID SIDE BY SIDE ARE SQUAMOUS SHAPED

T / FAN ISOTONIC SOLUTION HAS A HIGHER CONCENTRATION OF SOLUTES THAN THE 'OTHER SUBSTANCE'

T / FTHE CELL IS THE SMALLEST UNIT OF THE HUMAN BODY THAT IS CAPABLE OF EXPRESSING THE CHARACTERISTICS OF LIFE

T / FTHE HIP JOINT IS AN EXAMPLE OF A SYNOVIAL JOINT

T / FIf a nerve cell has a greater concentration of Na⁺ on the inside and K⁺on the outside of the cell membrane, then the movement of Na⁺ outside and K⁺ inside is by diffusion.

t / FMUCUS MEMBRANES LINE BODY CAVITIES THAT USUALLY HAVE CILIATED CELLS

T /FA FRONTAL PLANE WOULD divide the head so that the face remains intact

FILL IN THE BLANKS(1 pt each)

THE ______MUCUS___MEMBRANES LINE BODY PASSAGES OPEN 

TO THE EXTERIOR, AND_____SYNOVIAL____ MEMBRANES LINE JOINT CAVITIES.

THE LAYER THAT CONNECTS EPITHELIA TISSUE TO THE CONNECTIVE TISSUE IS CALLED THE ___BASEMENT MEMBRANE

CELL EATING IS CALLED _______PHAGOCYTOSIS____

THE DIFFUSION OF WATER THROUGH SELECTIVELY PERMEABLE MEMBRANES ISCALLED _______OSMOSIS_____

ACTIVE TRANSPORT ACROSS A CELL'S MEMBRANE REQUIRES __ENERGY OR ATP___

Multiple Guess [1 pt each]

___C__ IF YOU COULD REMOVE A RED BLOOD CELL AND PLACE IT IN A HYPOTONIC SOLUTION, IT WOULD PROBABLY:

A. GAIN WATER, SWELL & BURST

B. RETAIN ITS NORMAL WATER CONTENT & SIZE

C. LOSE WATER & SHRIVEL

___E__If snake venom were able to DAMAGE PROTEINS in human CELL

membranes, which TRANSPORT PROCESS(es) might not function?

A. diffusion only

B. osmosis only

C. facilitated diffusion only

D. active transport only

E. C & D

___B__ Filtration is defined as the movement of molecules through 

a membrane:

A. from low concentration to high concentration

B. by hydrostatic, or blood PRESSURE that is greater on one side of THE MEMBRANE than on the other

C. from low to high hydrostatic pressure

D. from low osmotic pressure to high osmotic pressure