100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
KIN 310 exam 1 || Questions and 100% Verified Answers. $11.29   Add to cart

Exam (elaborations)

KIN 310 exam 1 || Questions and 100% Verified Answers.

 3 views  0 purchase
  • Course
  • KIN 310
  • Institution
  • KIN 310

explain the 2 ways energy expenditure is measured correct answers 1. direct calorimetry: measures the heat your body produces, uses calorimeter chamber 2. indirect calorimetry: measures the oxygen you us and breathe out (VO2 = VE x (FIO2 - FEO2) explain what is involved with open-circuit spirom...

[Show more]

Preview 2 out of 8  pages

  • October 31, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • KIN 310
  • KIN 310
avatar-seller
FullyFocus
KIN 310 exam 1 || Questions and 100% Verified Answers.
explain the 2 ways energy expenditure is measured correct answers 1. direct calorimetry:
measures the heat your body produces, uses calorimeter chamber
2. indirect calorimetry: measures the oxygen you us and breathe out (VO2 = VE x (FIO2 -
FEO2)

explain what is involved with open-circuit spirometry and when you would use it correct answers
- breathing in air from the room, breathing out through a different system
- metabolic cart
- computer
- mixing chamber: collects expired gas
- gas analyzers: measures O2 and CO2
- pneumotach: measures volume of air
- 2 way breathing mask

describe what oxygen consumption is, how it is expressed, and why it increases during exercise
correct answers - oxygen consumption is the body's need for oxygen to create energy (ATP)
- it is expressed as a VO2 value
- as exercise becomes more difficult, we need to recruit more muscle fibers, needing more ATP,
and therefore need more oxygen

why does our body need oxygen both at rest and during exercise? correct answers oxygen is
needed for basic cellular activities including muscle contractions

define what metabolism is and the types of reactions involved correct answers - metabolism:
total of all cellular reactions in the body, process of the body breaking down food to gain energy
- catabolic reactions: decompose, release energy, exergonic
- anabolic reactions: synthesize, consume energy, endergonic

identify what NAD+ and FAD are correct answers they are 2 important molecules that help carry
energy from food during metabolism so it can be used to make energy for your cells, they accept
electrons in the form of hydrogen

what are enzymes and what factors affect their activity? correct answers - enzyme: protein
molecule, catalyst that regulates rate of reaction, speeds up rate of reaction, lowers activation
energy
- temperature and pH: enzyme is not as effective outside of the optimal range
- concentration of enzyme: increase will increase reactions
- concentration of substrate: increase will increase reactions up until point of saturation

describe what foodstuff we can use to create energy correct answers carbohydrates, fats, and
proteins from food can be used to create energy for our bodies

what is glycogen, where is it stored, how is it made, and how is it broken down? correct answers
- glycogen: a type of carbohydrate that stores energy in the body

, - glycogen is stored mainly in the liver and the muscles
- glycogen is made from extra glucose
- glycogenolysis is the process of breaking down glycogen back into glucose when the body
needs energy

define what ATP is correct answers ATP is a molecule that acts as the main source of energy for
cells to carry out their activities

where is the energy stored in ATP? correct answers the energy in ATP is stored in the bonds
between it's phosphate groups, energy is released for the cell to use when this bond is broken

what is bioenergetics? correct answers bioenergetics: the process of converting foodstuff
(carbohydrates, fats, protein) into a biologically useable form of energy

what are the 3 metabolic pathways? correct answers 1. ATP-PC system
2. glycolysis
3. oxidative phosphorylation

explain how the ATP-PC system makes ATP correct answers - occurs in the sarcoplasm
- ADP + PC > ATP + C
- creatine kinase is the enzyme in the reaction
- simplest and quickest method of making ATP
- used at onset of exercise or high- intensity efforts
- PC reformation occurs after exercise during recovery

what does the evidence say about creatine supplementation? correct answers - improves short
duration performance
- increases dynamic muscle strength
- increases fat free mass

explain how glycolysis makes ATP- where in the cell does it take place? what happens during
the energy investment phase? what happens during the energy generation phase? what are the
starting and ending products? how many ATP do you net? correct answers - occurs in
sarcoplasm
- EIP: cell uses 2 ATP molecules to add phosphate groups to glucose from phosphofructokinase,
helps split it into 2 smaller molecules
- EGP: the 2 smaller molecules are broken down further to make the products
- starting products: glucose (or glycogen)
- ending products: 4 ATP, 2 NADH molecules, 2 pyruvate molecules
- net 2 ATP

describe the difference in glucose and glycogen as the starting substrate for glycolysis correct
answers - glucose: needs to be directly broken down using 2 ATP molecules
- glycogen: can skip one of the ATP steps, saving 1 ATP and making the process a little more
efficient

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller FullyFocus. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.29. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67096 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.29
  • (0)
  Add to cart