Lab Quiz Week 3

Question 1

Anatomy of the cell

Answer 1

All cells that have 3 major regions easily identified with a light microscope

Question 2

Nucleus

Answer 2

Contains the DNA

Question 3

Plasma Membrane

Answer 3

Separates cell contents from surrounding environment

Question 4

Cytoplasm

Answer 4

Area between the nucleus & plasma membrane

Question 5

Plasma membrane

Answer 5

Selectively permeable

Question 6

Transport through the PM in 2 ways

Answer 6

1. Passive: concentration drives the movement
2. Active: the cell provides energy/ATP to power the transport process

Question 7

Passive transport

Answer 7

1. Diffusion
   a. Simple
   b. Facilitated
2. Filtration

Question 8

Diffusion

Answer 8

Movement of molecules from a region of higher concentration to lower concentration

Question 9

Simple diffusion

Answer 9

Unassisted diffusion

Question 10

Facilitated diffusion

Answer 10

Movement of certain molecules across the PM with the assistance of protein carrier molecules

Question 11

Filtration

Answer 11

Usually occurs only across capillary walls

Question 12

Osmosis

Answer 12

Diffusion of water across differentially permeable membrane
Water moves down a concentration gradient

Question 13

Term familiarity

Answer 13

Isotonic
Hypertonic
Hypotonic

Question 14

Isotonic

Answer 14

Concentration inside the cell is the same as the concentration outside the cell

Question 15

Hypertonic

Answer 15

Concentration of molecules outside the cell is greater than inside (crenation in blood)

Question 16

Hypotonic

Answer 16

Concentration of molecules outside the cell is lower than inside the cell (hemolysis in blood)

Question 17

Active process

Answer 17

Use ATP to move substances across its boundaries
May not be lipid soluble
May be too large to pass through the membrane
May have to move against the concentration gradient

Question 18

Types of active process

Answer 18

1. Active transport
   a. Primary active transport
   b. Secondary active transport
2. Vesicular Transport
   a. Phagocytosis
   b. Pinocytosis

Question 19

Active transport

Answer 19

Carrier proteins that combine specifically with the transported substance

Question 20

Primary Active Transport

Answer 20

Driven primarily by ATP

Question 21

Secondary Active Transport

Answer 21

Driven indirectly by energy stored in Ionic gradience

Question 22

Vesicular transport

Answer 22

Movement of large particles across the cell

Question 23

Phagocytosis

Answer 23

Cell eating

Question 24

Pinocytosis

Answer 24

Cell drinking

Question 25

Gluscose

Answer 25

Benedict’s solution
Heat for 5 minuets in boiling water
(+) green - rusty orange
(-) light blue

Question 26

Starch

Answer 26

Iodine solution
(-) yellow brown
(+) black

Question 27

Protein

Answer 27

Biuret solution
(-) royal blue
(+) violet purple

Question 28

NaCl (Salt)

Answer 28

Silver Nitride (AgNO3)
(+) cloudy white
(-) clear