Exam (elaborations)
348 Exam #1 Questions With Correct Detailed Answers.
- Course
- Institution
348 Exam #1 Questions With Correct Detailed Answers.
[Show more]
Content preview
348 Exam #1 Questions With CorrectDetailed Answers.
Marathon runners primarily rely on anaerobic pathways for the needed energy.
A. True B. False - ANSWER- False
Overall efficiency of aerobic respiration is 34%.
A. True B. False - ANSWER- True
During a single krebs cycle, ____ molecule(s) of NADH and ___
molecule(s) of FADH are produced.
A. 2.5, 1.5
B. 1.5, 2.5
C.3,1
D.1,3 - ANSWER- C. 3,1
When oxygen is sufficient, NADH produced in glycolysis is converted back to NAD+ by
__________.
A. converting pyruvic acid to lactic acid
B. "shuttling" H into the mitochondria - ANSWER- B. "shuttling" H into the mitochondria
Breakdown of ATP is an exergonic reaction.
A. True B. False - ANSWER- True
Enzymes are catalysts that increase the rate of reactions by ______ the energy of
activation
A. lowering B. increasing - ANSWER- A. lowering
Muscular contractions that occur during normal body movements are tetanic
contractions.
A. True B. False - ANSWER- True
________ skeletal muscle fibers have the lowest ATPase activity.
A.Type IIx
B.Type I
C.Type IIa
D.Type IIb - ANSWER- B. Type 1
Sarcolemma is the _________ of a skeletal muscle fiber
.A. cytoplasm
B. cell membrane
C. nucleus - ANSWER- B. cell membrane
, Which list is in correct order?
A.
Wholemuscle
Fascicles
Musclefibers
Myofibrils
Sarcomeres
Actin&myosin proteins
B.
Wholemuscle
Fascicles
Myofibrils
Musclefibers
Sarcomeres
Actin&myosin proteins - ANSWER- A.
Which list on the next slide has the structure of skeletal muscles in the correct order
from largest to smallest structures? - ANSWER- Sarcolemma, Myofibril, Sarcomere,
Myofilament
Not all neurotransmitters are excitatory.
A. True B. False - ANSWER- True
At rest, a neuron is polarized because the inside of a neuron is ______ charged relative
to the outside.
A. negatively B. positively - ANSWER- negatively
Quizzes can be made up as long as they are excused ones.
A. True B. False - ANSWER- False
The term homeostasis is defined as ____.
A. a change within the internal environment
B. the maintenance of a constant internal environment
C. a low metabolic rate - ANSWER- B. the maintenance of a constant internal
environment
homeostasis - ANSWER- normal resting conditions= relatively constant and "normal"
internal environment
steady state - ANSWER- physiological variable is unchanging, but not necessarily
"normal"; balance between demands placed on body and the body's response to those
demands. Ex: body temp, arterial blood pressure
Body temperature reaches a _______ when at a steady state - ANSWER- plateau
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 Divinehub. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now