Bsc2086 Lab Quiz 1

Front 1

What were the goals of the first lab?

Back 1

1- Chemically testing different types of organic compounds
2 - Testing the effect of different temperatures on the rate of enzymatic hydrolysis (digestion) of starch and lipids.

Front 2

Purpose of chemical tests

Back 2

Determine the chemical composition of substances i.e. body fluids and food.

Front 3

Test Substance/ Test solution

Back 3

The material you are testing to determine its chemical composition

Front 4

Reagents

Back 4

Chemicals that you add to the test solution to perform the test

Front 5

Positive Test

Back 5

When test solution contains the substance for which you are testing.
Reagents react with the substance and produce a change in appearance.

Front 6

Negative Test

Back 6

Test solution lacks the substance for whic you are testing, the reaction does not take place to produce the change.

Front 7

Chemical Tests in 1st Lab

Back 7

Lugol's Test
Benedict's Test
Sudan 4 Test
Biuret Test

Front 8

Recognize 4 things for each test

Back 8

1 - Recognize the test on sight
2 - Name the type of organic compound the test identifies
3 - Name the reagents used in the test
4 - Describe the appearance of a positive and negative result

Front 9

Sudan 4 Test

Back 9

A. Lipid Test
B. Identifies: Lipids
C. Sudan 4 Dye - hydrophobic; attracted to lipids but avoids contact with water. BINDS TO LIPIDS in sol'n.
D. Positive = Red Ring
Negative = pink water

Front 10

Action of Bile on lipids

Back 10

Digestive substance.
No enzymes.
Emulsifies lipids = increases contact btwn lipids and lipid-digesting enzymes.

Front 11

Digestion of lipids experiment results

Back 11

1 - Color of two test tubes: 1 = lavender; 2 = light pink
2 - Responsible for the color differences = one was at optimal temperature.
3 - Why didn't much lipid digestion occur = No bile

Front 12

Biuret Test

Back 12

A. Protein test
B. Identifies proteins.
C. Reagent: Albumin
D. Positive: Violet color

Front 13

Lugol's Test

Back 13

A. Starch test.
B. IDs (starch)
C. Reagent: Lugol's
D. Positive: brown-black color
Negative: Iodine-amber brown

Front 14

Benedict's Test

Back 14

A. Carb/Sugars test
B. IDs: reducing sugar (mono/disacc)
C. Reagent: Benedicts
D. Positive: orange, red, yellow, grn

Front 15

Enzymes & Temperature

Back 15

Complex protein molecules.
Low temps = reduced acivity
High temps = destroy enzyme

Front 16

Optimal temperature for amylase activity (enzyme)

Back 16

37 degrees

Front 17

What temp produced the least starch digestion?

Back 17

0 dg

Front 18

Lugals & Benedicts correlation

Back 18

Strong Lugals = Weak Benedicts
Medium L = Medium B
Weak Lugals = Strong Benedicts

Front 19

Digestive Tract

Back 19

Hollow tube.
Mouth to anus.
Accessory organs emptying secretions into tract

Front 20

Is food a part of the digestive tract?

Back 20

No. Oustide the body.

Front 21

Most organs of digestive system are found where?

Back 21

Abdominopelvic cavity.

Front 22

What organs can be easily mistaken as part of the digestive tract?

Back 22

Kidneys, spleen, female reproductive structure. All in the abdominopelvic cavity.

Front 23

Parietal peritoneum

Back 23

Serous membrane that lines the walls of abdominopelvic cavity

Front 24

Visceral Peritonea

Back 24

Serous membranes that cover the surfaces of the organs found within the cavity

Front 25

Peritoneal fluid

Back 25

Lubricating fluid produced by the peritonea; prevents friction to the organs as they rub against one another and cavity walls.

Front 26

Extensions of the peritonea

Back 26

Omenta, Mesenteries, Ligaments

Front 27

Omenta, Mesenteries, Ligaments

Back 27

Omenta - anchor organs to other organs in the digestive sys.
Mesenteries = attach parts of the DT to the dorsal body wall
Ligaments = anchor organs other than those of the DT to the dorsal, lateral/ventral body walls.

Front 28

Omenta (2)

Back 28

Greater omentum - extends from greater curvature (lower edge) of the stomach and covering the small intestine and colon.
Lesser omentum = extends from the lesser curvature (upper edge) of the stomach to the liver. Covers the caudate lobe of liver.

Front 29

Mesenteries (4)

Back 29

Mesoduodenum - anchors duodenum
Mesentery proper - achors jejunum and ileum to the body wall
Mesocolon - anchors majority of the colon to dorsal body wall
Mesorectum - achors rectum to the dorsal body wall

Front 30

Ligaments (7)

Back 30

Falciform ligament
Ligamentum teres
Median suspensory ligament of the bladder
Lateral ligaments of the bladder
Broad ligament of the uterus
Round ligament of the uterus
Gastrosplenic ligament

Front 31

Falciform ligament

Back 31

Extends from the diaphragm to the liver; attaching point divides the liver into the right and left halves.

Front 32

Ligamentum Teres

Back 32

aka Round ligament
Thickened, unattached front edge of the falciform ligament

Front 33

Median suspensory ligament of the bladder

Back 33

Extends from the midline of the bladder to the ventral body wall

Front 34

Lateral ligaments of the bladder

Back 34

Extend from the lateral edges of the bladder to the lateral body walls

Front 35

Broad ligament of the uterus

Back 35

Extends from the dorsal body wall to attach lengthwise on the uterine horn's dorsal side.

Front 36

Round ligament of the uterus

Back 36

Extends from the lateral body wall and attaches perpendicular to the broad ligament about halfway up each uterine horn.

Front 37

Gastrosplenic ligament

Back 37

Connects the spleen to the stomach

Front 38

Big Outline of DT

Back 38

Esophagus>Stomach>Small I>Lg I> Liver>Gallbladder>Pancreas> Spleen

Front 39

4 Regions of stomach

Back 39

Cardiac - attaches to esophagus
Fundus - bulge on upper left above cardiac
Corpus (Body) - Main
Pylorus - Tapered, terminal portion

Front 40

Stomach Structures

Back 40

Cardiac sphincter
Pyloric sphincter
Rugae - folds of gastric mucosa

Front 41

Stomach edges

Back 41

Greater (lower convex border)
Lesser curvature (upper concave)

Front 42

Small intestine regions (3)

Back 42

Duodenum - Short, C-shaped beginning section
Jejunum - Highly coiled middle scxn
Ileum - highly coiled terminal section; empties into large intestine

Front 43

Small Intestine Structures (3)

Back 43

Ileocecal sphincter - ring of muscle serving as a valve between the ileum and the large intestine
Villi - very small, finger-like projections of the intestinal mucosa

Front 44

Large intestines regions (2)

Back 44

Cecum - blind pouch. beginning of the large intestine. Attached to ileum.
Colon - major portion of lg intestine. 4 parts = ascending, transverse, descending, and sigmoid

Front 45

Large intestine structures (3)

Back 45

Appendix - mass of lymphatic tissue, hangs off cecum.
Haustrae = pouchlike outpocketings of the colon wall
Teniae coli - ribbonlike, longitudinal strips of muscle; contract to produce haustrae.

Front 46

Blood flow thru heart

Back 46

From 3 veins empties into RA:
1. Superior VC
2. Inferior VC
3. Coronary sinus
RA > Tri valve > RV > P Trunk > PSL valve > R + L pulmonary arteries > Lungs > Pulmonary veins > LA > Bi valve > LV > Aortic SL Valve > Aorta > Tissues > Veins --> Superior vena cava

Front 47

Ducts of Liver/Gallbladder/ Pancreas

Back 47

Hepatic duct
Cystic duct
Common Bile duct
Pancreatic duct
Hepatopancreatic duct
Duodenal ampulla

Front 48

Cyst bile duct

Back 48

Conducts bile in and out of the gallbladder

Front 49

Common bile duct

Back 49

Fusion of the hepatic and cystic duct; conducts bile from the liver and gallbladder to the duodenum

Front 50

Pancreatic Duct

Back 50

Conducts pancreatic juice to the DUODENUM

Front 51

Hepatic duct

Back 51

Conducts bile from the LIVER

Front 52

Hepatopancreatic Duct

Back 52

Fusion of common bile duct and pancreatic duct

Front 53

Duodenal Ampulla

Back 53

point where hepatopancreatic duct empties into duodenum