ch 26 Quiz Answers Flashcards
Which of the following function in long-term appetite regulation? Select three peptides from the list below.
- insulin
- ghrelin
- neuropeptide Y
Which of the following is a principal source of body heat?
- Muscle contraction
- Chemical reactions associated with cellular activity
- Bone density
- evaporation
Match each method of heat loss with its accurate example.
Radiation
* Invisible light rays emitted from molecular motion heat the air around your body.
Conduction
* Heat from your body is transferred to your clothes.
Evaporation
* Sweat on your skin turns to vapor in the air.
Read each of the scenarios below. Then, click and drag them into the appropriate category to identify whether each would raise or lower the total metabolic rate (TMR).
Raise the total metabolic rate
- Pregnancy
- Anxiety
- Breakfast
- Fighting a bacterial infection
- Hyperthyroidism
Read each of the scenarios below. Then, click and drag them into the appropriate category to identify whether each would raise or lower the total metabolic rate (TMR).
Lower the Total Metabolic Rate
- Hypothyroidism
- Depression
- Aging
- Reduction in food intake
- Apathy
Drag each label to the appropriate position to indicate which energy system is being described.
Glycolysis
- Describes the partial breakdown of glucose
- Produces 2 molecules of pyruvate per molecule of glucose
- Can produce large quantities of lactate during times of oxygen deficiency
Drag each label to the appropriate position to indicate which energy system is being described.
Aerobic respiration
- Occurs in the mitochondria
- Produces over 30 molecules of ATP
per glucose - Utilizes the slowest reaction rates
irge - Requires adequate oxygen supply
Match each mineral to its most common dietary sources.
- Sodium
- Calcium
- Fluoride
- Iron
- Sodium: Table salt, processed foods; usually present in excess
- Calcium: Milk, fish, shellfish, greens, tofu, orange juice
- Fluoride: Fluoridated water and toothpaste, tea, seafood, seaweed
- Iron: Red meat, liver, shellfish, eggs, dried fruits, nuts, legumes, molasses
When glucose stores are low during exercise, energy can be liberated from adipocytes via lipogenesis.
False
Select the single word into each sentence to make it correct.
- Inside the mitochondria, electrons are passed down a transport chain.
- Hydrogen atoms are split apart as they transfer from coenzymes to the chain.
- The protons are pumped from the intermembrane space.
- Each electron carrier in the chain becomes reduced when it receives an electron pair.
- It is then oxidized again when it passes the electrons along to the next carrier
- The result is that energy is liberated at each transfer.
Complete each sentence describing the hypothalamic response to heat using one of the choices provided.
- The temperature of the blood rises to a point that is too high.
- This is detected by the preoptic area of the hypothalamus
- The hypothalamus activates heat loss mechanisms.
- The simplest response is vasodilation of vessels in the skin.
- This brings more blood to the surface
and allows it to cool.
Which term is defined as any ingested chemical that is used for growth, repair, or maintenance of the body?
Nutrient
When oxygen accepts electrons, water is produced as a byproduct.
True
The formation of ATP as a result of the activity of the electron transport system is termed substrate-level phosphorylation.
False
Arrange the following electron acceptors in the proper order in which they participate in electron transport.
1 = Cytochrome c
2 = Oxygen
3 = Cytochrome c oxidase
1, 3, 2
