Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > Bio Test 3 > Flashcards

Bio Test 3 Flashcards

1
Q

Fast food problems?

A

Palm oil
HFCS- high fructose corn syrup
Access easy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Sedentary life style

A

Driving, tv, computer, phones, video games

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why do we overeat?

A 
Stress
Portion size 
Variety
Boredom
Sweetness 
Culture
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Inhibitions to hunger

A 
Heat, cold, extremes 
Extreme exercise 
Emotions- fear, anger, pain
Depression 
Drugs, poisons- toxins
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How many people are overweight or obese

A

2/3 overweight 1/3 obese

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Organic and not

A 
No pesticides- use other insects, oils, diatomaceous earth
No herbicides 
Use natural fertilizer 
Manure
Compost
Green crops
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why are pesticide residues a problem?

A

They store in fat, breast tissue.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Who did we give DDT to?

A

South America where we get our veggies and fruit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why are children more at risk with pesticides?

A

Eat more in relegation to body size.
Pesticides are for a 160 pound person.
Kids store pesticides in their organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Most contaminated

A 
Apples 
Apricots
Cantaloupe
Celery
Cucumbers
Fresh peaches
Grapes
Green and red bell peppers
Pears
Soybeans
U.S. Cherries
U.S. Frozen/fresh winter squash 
U.S. Green beans
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Least contaminated

A 
Advocados
Bananas
Broccoli
Brussels sprouts
Canned peaches
Cauliflower
Frozen or canned corn
Milk
Onions
Sweet potatoes
U.S. Broccoli 
U.s. Orange juice 
Watermelons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are ways they grow organic?

A

No pesticides- use insects, oils
Natural fertilizer
Manure
Compost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

SA and AV nodes

A

SA- in right atrium, atria contracts simultaneously allowing an electrical impulse that sets the rhythm of your heart(pulse).
AV- sets the rhythm of heart contractions, delays so blood fills up. Causes ventricles to contract simultaneously.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Purknje fibers-

A

Purkinje fibers allow the heart’s conduction system to create synchronized contractions of its ventricles, and are, therefore, essential for maintaining a consistent heart rhythm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe the EKG

A

The electrocardiogram
P- excitation of atria- prior to contraction. Arterial depolarization
Q,R,S- excitation of ventricles, also atria relaxes. Onset of ventricular depolorization.
T- relaxation of ventricles. Replorization

Systole- ventricle contraction
Diastole- ventricle relaxation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Myocardial infarction_

A

Heart attack
Clogged coronary artery
Help- stent. Balloon but can cause another block somewhere else, bypass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Stroke

A

Cerebral vascular accident

  • clogged artery in brain
  • aneurysm- bulging vessels, Dacron stretchy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Arrhythmias

A 
Malfunction of hearts electrical system 
- pace maker takes over SA node
-tachycardia- fast heart rate, not getting the pause, insufficient blood flow.
Bradycardia- slow heart rate, 60bpm
72 bpm normal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Foramen ovale-

A

Hole between atria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Ductus arteriosus

A

Hole between the vessels. When open patent DA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Ventricular septa defect

A

Hole between ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Problems of transportation of vessels in the heart

A

Pulmonary artery attached to LV- lung originated

Aorta attached to RV- no lungs, deoxygenated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Hypertension

A

High blood pressure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What’s considered normal and high blood pressure?

A

Normal- Lower then 120/80

High- 140/90 or above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Why is hypertension dangerous?

A

1) enlarged left ventricle- congestive heart failure
2) strokes, aneurysms
3) myocardial infarction
4) kidney disease

26
Q

Why we need salt?

A

Muscle contractions and neuron communications

27
Q

Yanamamo Indians

A

Lowest salt consumption
10mg a day
95/61

28
Q

Akita province, Japan

A

Highest salt intake
.27g a day
151/93
99% die before 70, strokes

29
Q

African Americans

A 
10x risk dying of high blood pressure 
Age 50 hypertensive
Slave trade, loss of sweat 
Created super efficient kidneys
More salt more water. Water increase blood volume.
30
Q

Chimps

A 
1 group normal salt intake
1 group increased 15g a day
After two years 7/10 blood pressure rose
3 refused two eat
3 remained normal
31
Q

High salty foods?

A 
Canned soup
Fries
Ramen
Hamburger
Ketchup
V8
Soy sauce
32
Q

How much salt we need and actually consume a day

A

2.4 is healthy

5-12 is average

33
Q

Why is red bone marrow important?

A 
Found in spongy bone
Makes:
Red blood cells- carry oxygen and glucose 
Platelets- clotting
Whit blood cells- immune system
34
Q

The 5 types of wbc and explain each

A

Neutrophilis- indicate bacterial infection
Lymphocytes- memory of past invaders, viral, bacterial
Monocytes- viral infections, pass through blood vessels, kill by phagocytosis.
Eosinophil- parisitic infection, allergies
Basophils- allergic reaction

35
Q

What white blood cells are generalists and specific defense

A

Every one besides lymphocytes are generalists- attack any bacteria.
Lymphocytes are a specific defense blood cell that produces antibodies that recognize

36
Q

What are the diff types of T cells found in lymphocytes?

A 
Memory T- recognize past invaders 
Helper T- stimulate killer T cells (t4)
Suppressor T- inhibit killer T cells 
Killer T- kill invader ( antigen) 
Antigen protein not recognized by body
37
Q

What do the non specific wbc do?

A

Barrier defense system
Skin- keratinized, layer, sebum oil
Respitory system- hairs, nasal, cilia + mucus- tubes
Stomach- produces acid
Complement system proteins
Protein jabs holes in bacteria, water fills in and bacteria blows up
Inflammation system
Swelling, hot, throbbing red, due to bringing in blood quickly

38
Q

What does CBC stand for

A

Complete blood count

39
Q

Types of immunity

A

Takes 2 weeks from birth to establish T cells
Passive immunity- mothers milk, placenta
Active immunity- vaccinations, non virulent microbe

40
Q

Where is the herpies and chicken pox virus found in the body?

A

Hides in spinal chord

41
Q

What are auto immune and immune suppressed diseases?

A

Auto immune- body hacking itself
Lupus, crohns, ms, rhewmatoid arthritis, type 1 diabetes
Imuneosupressed- hiv AIDS, chemotherapy, organ transplant

42
Q

What are allergies and examples

A

Allergen- harmless substance that provokes the immune system.
Pollen, insect venom, nuts, dust, shellfish, mites, animal, dandert, protein, foods, metals, cosmetic, perfumes

43
Q

What’s an epipen?

A

Epinephrine adrenaline

44
Q

Tags with antibodies?

A

IGE- protein antibody that attaches to a mast cell in respitory or GI tract. Mast cell explodes, creates histamines which cause inflammation- leads to asthma, anaphylactic shock caused by insect venom, latex, shellfish nuts cause create a lot of histamine

45
Q

What does tetnis do to body?

A

Causes body to contract, lock jaw, spine locks up

46
Q

2012 statistics of deaths

A

1) ischaemic heart disease
2) stroke
3) respitory disease
4) HIV, AIDS
5) diarrhea
6) diabetes
7) road injury
8) hypertension

47
Q

What is diff of HIV and AIDS

A

HIV- human Imuno deficiency virus
AIDS- disease
HIV attacks T4 cells (1000) until (400) are left and u get AIDS

48
Q

What is anthrax, where is it found, and what are the forms

A

Spore forming bacteria
Occurs in cattle, sheep, goats, antelope, camels
In South America, south east Europe, Asia, Africa, Caribbean
3 forms- cutaneous 20% fatal
Gastrointeinal 20-60% fatal
Inhalation- 99.9% fatal

49
Q

Ebola

A

Ebola- virus spread through mucous. Possibly came from monkeys- vector- transporting organism

50
Q

Lyme disease

A

Bacteria- passed by ticks on deer

51
Q

HIV-

A

Passed through blood, mucus

52
Q

Cholera-

A

Bacteria- contaminated water, shellfish

53
Q

Hantavirus

A

Passed by deer mice, through blood, mucus, feces and urine- pulmonary syndrome

54
Q

Diphtheria-

A

bacteria spread by mucus. Increased due to lack of vaccinations. dPT shots

55
Q

Pertussis

A

Whooping cough, bacteria, bordetella pertussis
New borne after 2 months get vaccinated
Increase due to lack of vaccinations

56
Q

Rabies-

A

Virus passed by animal mucus

Increase lack of travel and vaccinations

57
Q

Measles

A

Virus, human contact, lack of vaccinations

58
Q

Anthrax-

A

Bacteria animals to humans

59
Q

Yellow fever-

A

Virus passed by mosquitos

60
Q

Malaria

A

Parasite

61
Q

Tuberculous

A

Bacteria passed by Human mucus due to increased immigration

Biology (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions