Biology Exam IV Flashcards


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1

Tidal volume is -

air moved in and out with each normal breath

2

What organ does NOT produce enzymes for starch (carbohydrate) digestion?

stomach

3

Pepsin is an enzyme that digests proteins at acidic pH. Therefore it must act in the -

stomach

4

In terms of heart disease risk, what is true?

As LDL cholesterol levels increase there is an increased risk

5

The main function of glucose is to supply _____ for the body.

energy

6

The major component of plasma is -

water

7

In 2011, the USDA created ______ to replace the food pyramid.

MyPlate

8

Which eating disorder is characterized by bingeing and purging?

bulimia nervosa

9

The _____ are air sacs where gas exchange occurs.

alveoli

10

What is missing in infant respiratory distress syndrome?

surfactant

11

The pharynx is a passageway for food, drink and air.

true

12

The basic building blocks of protein are -

amino acids

13

Which carries urine from the kidney to the urinary bladder?

ureters

14

Glucose -

is filtered and reabsorbed totally

15

If a fat contains mostly saturated fatty acids, it is likely to be ______ at room temperature.

solid

16

Interstitial fluid is made from blood plasma and returns to blood plasma.

true

17

Which organs oft the urinary system is the storage area for urine?

bladder

18

Vital capacity is -

maximum volume of air moved in and out during a single deep breath

19

What is the correct order of the nephron tubule structures?

  1. Bowman's capsule
  2. proximal convoluted tubule
  3. loop of Henle
  4. distal convoluted tubule

20

What structure keeps food from entering the larynx during swallowing?

epiglottis

21

Minerals are organic molecules.

false

22

What is the order of components of the digestive tract?

  1. mouth
  2. pharynx
  3. esophagus
  4. stomach
  5. small intestine
  6. large intestine
  7. rectum
  8. anus

23

What feature is used by both the respiratory and digestive system?

pharynx

24

Urochrome comes from the metabolism of _______ in the liver.

hemoglobin

25

Heartburn is due to -

contents of the stomach escaping into the esophagus

26

Which part of the urinary system is shared with the reproductive system in males?

urethra

27

Excess amounts of most water-soluble vitamins are -

readily excreted

28

3 processes involved in the formation of urine in order

  1. glomerular filtration
  2. tubular reabsorption
  3. tubular secretion

29

A urinalysis showing the presence of protein and blood cells is normal.

false

30

What type of intravenous fluid would be given to reduce edema?

hypertonic

31

Accumulation of excess fluid in loose connective tissue is called -

edema

32

What is the purpose of surfactant that lines each alveolus?

both keeps the alveoli from collapsing and reduces the surface tension in water

33

The process that pushed food through the esophagus is called -

peristalsis

34

Hypertension and edema are often treated with diuretics.

true

35

ADH causes more water to be reabsorbed into the blood to give a lower urine volume.

True

36

The 9 amino acids that the body cannot make are known as nonessential amino acids.

false

37

A 10% dextrose solution is isotonic to plasma.

false

38

Residual volume is -

air remaining in the alveoli after very deep exhalation.

39

The gallbladder produces bile.

false

40

If carbon dioxide levels in the blood increase, the pH will ____, causing ______.

decrease

acidosis

41

Which respiratory structure is used to produce sound?

laynx

42

Cells placed in hypotonic solutions will -

increase in volume

43

The pancreas secretes enzymes acting on -

proteins

fats

carbohydrates

44

During respiration, what is the additional amount of air that can be exhaled from the lungs during an extra exhalation called? This volume is usually around 1,400 ml.

expiratory reserve volume

45

An increase in the extracellular concentration of salts will cause body cells to -

lose water and shrink

46

Hyperventilation could lead to -

alkalosis

47

Metabolic rate is a measurement of the -

energy used in a give period of time

48

Osmoreceptors are involved in the regulation of blood volume.

true

49

The diaphragm contracts during ________ and relaxes during ______.

inspiration

expiration

50

What is the first portion of the small intestine?

duodenum