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FSHN150 Exam #2
N/A
53
Science
Undergraduate 3
10/16/2011

Additional Science Flashcards

 


 

Cards

Term
When do you see splitting cells when your gaining weight?
Definition
childhood, pregnancy, and adolesence
Term
What are the symptoms of Type 1 Diabetes?
Definition

1. Loss of weight

2.Hungry-Cells are "starving"

3.Thirsty-becasue of high H20 losses

4.Urination-High blood glucose spills into urine and pulls H20 with it

5. confusion and breathing difficulties

Term
Describe Type 1 Diabetes.
Definition

1. Onset usually in childhood or adolescence

2. Insulin is not produced, becasue the cells in the pacreas that produce the insulin are gone.

3.Not curable

4. Possible viral or auto immune cause

Term
What are the short term consequences of Type 1 diabetes?
Definition

1. Loss of muscle and excess fat use->ketosis

2. Tend to be thin and loosing weight.

3. If uncontrolled can lead to coma and death.

 

Term
If you are taking insulin shots what must you watch?
Definition

1. Carbohydrates

2.Exercise

3.Alcohol

Term
Describe type 2 Diabetes.
Definition

1. Correlated with excess weight.

2. Stronger genetic/familial link than Type 1.

3. About 90% of diabetes cases.

4. Rate increases with age.

5. Usually adult onset, but now 40%-50% new diabetes in 10-19 year olds.

6.Type 2 increased 30% in 90's.

7. 6% white, 9% African American, 8% Hispanic

8. Produce insulin but not effective-body resists/ignores the insulin

Term
How can you treat type 2 diabetes?
Definition

1.Hypoglycemic drugs (maybe Insulin)

2. Controlling and loosing weight.

3. Weight loss may correct insulin resistance.

Term
What is the difference between Type 1 and Type 2 diabetes?
Definition

Type 1: very high blood glucose, no insulin

 

Type 2:high blood glucose, high insulin (but the insulin is not effective)

Term
What are the long term affects of diabetes?
Definition

1. Kidney failure

2. CVD

3. blindness

4. amputations

5. poor healing from wounds and infections

6. neurological damage

 

Term
What is metabolic syndrome?
Definition

1. "Insulin" Resistance Syndrome

2. 25% of population, higher in non-Europeans

3. Triggered by or aggravated by ABDOMINAL obesity

Term
What is the difference between Type 2 Diabetes and Metabolic Syndrome?
Definition
Type 2 is insulin resistant (very severe) and metabolic syndrome is insulin resistant but not enough to be type 2 diabetes.
Term
Describe lactose intolerance.
Definition

1. People missing or low in lactase.

2. Lactose passes to large intestine, and bacteria break it down causing gas, cramps, and diarrhea.

3. 70-80% of world's adult populatin has it.

4. Starts at age 4.

 

Term
What populations are not usually lactose intolerant and why?
Definition

1. Northern European

2. Middle Eastern

3. Central African

becasue they grew cows, and adapted gene with lactase

Term
What is the affect of milk on lactose intolerant people?
Definition
Most likely to cause problems, but it can be consumed in small quantities or with food.
Term
What is the effect of cheese on lactose intolerant people?
Definition
They can still eat it becasue most of the lactose is seperated out in processing. (esp. hard cheeses)
Term
What is the effect of yogurt on lactose intolerant people?
Definition
They can eat it becasue bacteria in the yogurt breaks down the lactose.
Term
What is lactase?
Definition
Lactose intolerant people take enzyme pills or drops with a meal or used to treat milk.
Term
What are soy/rice milks?
Definition
read the labels, may or may not have calcium or Vitamin D, but significan protein.
Term
What are the advantages of bulking actions of fiber?
Definition

1. Less calories, becasue it replaces high calorie foods.

2. Speeds flow through intestines.

3. Less constipation and hemorrhoids

4.Toxins and carcingoens have less contact time due to speed.

Term
What are the negative effects of bulking actions of fiber?
Definition
if it is high in fiber, may decrease nutrient intake especially if pregnant.
Term
What are the positive effects of binding actions of fiber?
Definition

1. Lowers cholesterol.

2. Can tie up some carcinogens (reduce colon cancer risk)

3. Can tie up bile (cholesterol) and reduce CVD risk.

Term
What are the negative effects if binding action of fiber?
Definition

Low mineral intake.

(seen in middle east)

Term
Which whole foods are high in fiber?
Definition

Legumes

(nuts as well but not as high as legumes)

Term
What is a main source of sugar in a diet?
Definition
sugar water-soda
Term
What are lipoproteins used for?
Definition
Used to transport lipids since they aren't soluble.
Term
Describe chylomicron lipoprotein.
Definition

1. Source: small intestine

2. Functions: Move dietary fact to tissue (dropped in lymphatic system)

3. CVD Risk: N/A

4. High In: tryglycerides

5. Fate: liver clears

Term
Describe VLDL lipoprotein.
Definition

1. Source: liver

2. Functions: move fat to tissues

3.Increases CVD risk.

4. High in: tryglycerides

5. Fate: LDL 

Term
Describe LDL lipoprotein.
Definition

1. Source: VLDL

2. Functions: ??

3. Increases CVD risk

4. High in cholesterol.

5. Fate: arteries (liver)

 

Term
Describe HDL lipoprotein.
Definition

1. Source: liver and small intestine

2. Functions: lowers cholesterol

3. Decreases CVD risk

4. High in: protein

5. Fate: ??

Term
What lipoprotein is high when insulin is high?
Definition
chylomicron
Term
You don't what the LDL to be how many times higher than the HDL?
Definition
4 times higher than the HDL
Term
What increases LDL?
Definition

Saturated fat

trans fat

Term
What decreases LDL?
Definition
mono and poly saturated fat
Term
What increases HDL?
Definition
exercise, loose weight, alcohol (ETOH), and estrogen
Term
What decreases HDL?
Definition
polysaturated fats, smoking, and obesity
Term
What increases VLDL?
Definition
sugar
Term
What are the triglycerides functions?
Definition

1. Concentrated energy (diet and storage)

2. Provides essential fatty acids (linoleic, linolenic)

3. Carrier of fat soluble vitamins (A,D,E,K)

4.Body insulation and padding around organs

5. fatty acids (not TG) in cell membranes

6. adds flavor and texture to foods

7. contributes to fullness (protein may be the key to satiety)

8. made of 3 fatty acids and 1 glycerol

Term
What are phospholipid functions?
Definition

1. in cell membranes

2. help transport other fats in blood

3. precurson for some neural transmitters

4. emulsifier in foods

Term
What are cholesotrol's functions?
Definition

1. Found in cell membranes.

2. Precurson for Vitamin D and some hormones (estrogen, and testorone)

3. Major component of bile

4. Only found in animals, NEVER in plants

5. Not an essential nutrient since man makes it but performs essential functions

6. 1/3 from diet, 2/3 from body

7. of 700 mg, 400 mg go to bile

Term
What are the functions of saturated fats?
Definition

1. maximum # of hydrogen atoms

2. usually solid at room temperature

3. mostly from animal sources

4. exceptions: tropical oils (palm and coconut) are very saturated [processed foods have these oils]

5. Raises blood cholesterol levels, but the degree depends on specific fatty acid.

Term
What are the functions of unsaturated fats?
Definition

1. Fewer H atoms, double bonds, b/t carbons

2. usually liquid at room temperature

3. mostly plant and fish sources

4. more chemically active (turn rancid faster)

5. Lowers blood cholesterol levels.

6. Monounsaturated fatty acid-1 double bond minus 2hydrogens (best source is olive oil)

7. Polyunsaturated fatty acid-2 or more double bonds

 

Term
What is a mix of saturated and unsaturated fats?
Definition
Dietary fats (TG)
Term
What do fatty acids differ by?
Definition

1. degree of saturation

2. length

3. NOT by calories

Term
What are the health dangers of excessive trans fatty acids?
Definition

1. Raises LDL

2. Lowers HDL

3. increases risk for heart diseast

4. current intake is 3% of total kcals

Term
As you go from corn oil to tub margarine to stick margarine it gets more...?
Definition
Saturated
Term
What is albumin?
Definition

protein in blood

Function: fat->tissues (fatty acid transport)

fatty acids come from adipose tissue

Term
What are ketones?
Definition

1. 4 carb fragments from fatty acids

2. brain can use for fuel if concentration high, reduces loss of muscle

3. kidney and heart damage

4."chemical breath"

5. loss of H20/ urine and electrolytes

6. lower blood pressure

Term
true hypoglycemia
Definition
excess secrection of insulin often due to tumor
Term
reactinve hypoglycemia
Definition
may be cause by large, simple CHO load
Term
Fasting hypoglycemia
Definition
8-14 hours after eating, liver glycogen depleted and conversion of protein to glucose may be delayed
Term
When are you likely to see ketosis?
Definition
diabetes, starvation, very low CHO diets
Term
Risk factors for heart disease
Definition

1. age, male, stress

2. diabetes, metabolic syndrome

3. HDL<40

4. obesity

5. viral or bacterial infections

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