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BIOL 2311 – Exam 5 (47 questions; max score: 110 out of 100 points) Answered.

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Course
BIOL 2311

Institution
12th Grade

NAME: BIOL 2311 – Exam 5 (47 questions; max score: 110 out of 100 points) Multiple choice questions. (40 points). Select a single answer per question. Each question is worth 1 pt. 1. An example of negative feedback is the control of blood glucose levels by glucagon. A __________ in blood gl...

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biol 2311 exam
biol 2311 exam 5
biol 2311 exam 5 47 questions
bowie high school biology 2311

Institution Secondary school
Education 12th Grade
Course BIOL 2311
School year 6

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NAME: Lourdes Chico
BIOL 2311 – Exam 5 (47 questions; max score: 110 out of 100 points)

Multiple choice questions. (40 points). Select a single answer per question. Each question is
worth 1 pt.

1. An example of negative feedback is the control of blood glucose levels by glucagon. A
__________ in blood glucose leads to the pancreas secreting glucagon that promotes
__________ of glucose from the bloodstream.
a. fall; release
b. fall; removal
c. rise; removal
d. rise; release
e. none of the above

2. The hands and feet experience high amounts of abrasion. It contains so called thick
skin having five epidermal strata. Which epidermal layer in thick skin consists of dead
keratinocytes?
a. stratum corneum
b. stratum spinosum
c. stratum granulosum
d. a and b
e. a, b, and c

3. Motor units in a muscle contract _______________ and this helps _______________ fatigue.
a. asynchronously; prevent
b. synchronously; prevent
c. asynchronously; promote
d. synchronously; promote
e. a and c

4. The _______________ is the period where another AP can be generated.
a. relative refractory period
b. absolute refractory period
c. all-or-none period
d. a and b
e. b and c

5. All fibers in the cerebellum are _______________ while the fibers in the cerebrum are
_______________.
a. ipsilateral; contralateral
b. contralateral; ipsilateral
c. contralateral; contralateral
d. ipsilateral; ipsilateral
e. none of the above

6. The right cerebral hemisphere controls the muscles on the left side of the body and
vice versa. Which pathway generalization best explains this phenomenon?
a. pathways decussate
b. pathways use a relay of neuronal connections
c. pathways exhibit somatotopy
This study source was downloaded by 100000892213116 from CourseHero.com on 10-11-2024 05:55:24 GMT -05:00

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, d. pathways are symmetrical
e. all of the above

7. The __________ cells in the thyroid gland are responsible for producing the __________
hormone.
a. parafollicular cells; calcitonin
b. follicular cells; thyroglobulin
c. follicular cells; colloid
d. a and b
e. a, b, and c

8. During cross-bridge cycling, the __________ positions the myosin head into high-energy
state.
a. ATP hydrolysis
b. ATP attachment
c. ATP synthesis
d. a and b
e. b and c

9. Which of the following statements about the regeneration of nerve fibers is incorrect?
a. PNS nerve fibers cannot be regenerated
b. CNS nerve fibers cannot be regenerated
c. Schwann cells secrete growth inhibiting factors to stop axon regeneration
d. Oligodendrocytes secrete growth promoting factors to spur axon regeneration
e. none of the above

10. Which of the following skeletal muscle fiber structure is not part of the “triad”?
a. sarcomere
b. t-tubule
c. terminal cisternae of the SR
d. b and c
e. a, b, and c

11. Which of the following is not a component of RNA?
a. nitrogen-containing base
b. deoxyribose sugar
c. phosphate group
d. all of the above
e. none of above

12. __________ is a hormone interaction where one or more hormones counteracts the
action of another.
a. permissiveness
b. antagonism
c. synergism
d. a and c
e. b and c

13. Which of the following statement relating to parathyroid gland is true?
a. 4-8 parathyroid glands embedded in anterior part of thyroid gland
b. contains parathyroid cells that secrete parathyroid hormone
This study source was downloaded by 100000892213116 from CourseHero.com on 10-11-2024 05:55:24 GMT -05:00

https://www.coursehero.com/file/240317032/BIOL-2311-Exam-5-Answereddocx/

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