BIOL 1070 Study Guide - Midterm Guide: Circadian Rhythm, Parasympathetic Nervous System, Ultradian Rhythm

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12 Feb 2013
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BIOL*1080: W12 Mock Midterm
SLG Session Handout Disclaimer:
SLG Session Handout Disclaimer:SLG Session Handout Disclaimer:
SLG Session Handout Disclaimer:
This resource is not designed to be used independently of SLG Sessions. Please use this resource
for referral only – it is supplemental review and is not meant to be a substitute for lecture or
course material. This document may contain errors which may not be apparent unless you attend
the session for which it was intended. This document has not been approved nor endorsed by, nor
is it affiliated with, the Department of Biology.
To get the most benefit out of the mock midterm, please do this in actual midterm
conditions, which means no notes/textbook/asking friends allowed.
Good Luck!
This midterm will be reviewed at the following session:
Leader Room Day &Time
Alannah Lib 100A – Forster Room Thursday Oct 11
th
4:30-7pm
1. With respect to the Control and Communication Network, which of the following is
false?
(a) The CCN is located all throughout the body
(b) The CCN turns off and rests while we sleep at night; it regenerates for the next
day
(c) Cell to cell communication passes information through the network.
(d) It controls the nervous and endocrine systems.
2. Chronobiology, the study of timescales and cycles, is an important aspect of biology.
Which of the following statements is correct?
(a) Appetite is an example of an ultradian rhythm
(b) The menstrual cycle follows a circadian rhythm
(c) An infradian rhythm is present in our sleep cycle
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(d) Almost all biological cycles follow a circadian rhythm; this is because our body
is very sensitive to light
3. Although there are many different biological ‘clocks’ in the body, there is one that is
known as the CENTRAL clock. This is known as the…
(a) Brain
(b) Circadian nucleus
(c) Suprachiasmatic nucleus
(d) The above terms are all acceptable
4. In regards to biomarkers of osteoporosis, which of the following is correct?
(a) Height is an excellent biomarker for osteoporosis, because as the disease
proceeds, height decreases
(b) Height is a poor biomarker because it must be measured over a period of time
and it has low sensitivity
(c) Height is an excellent biomarker because height only changes during diseased
state
(d) DEXA scores are a poor way to measure osteoporosis because they vary
throughout the day
5. If your family has a history of osteoporosis, what is the most effective way to prevent
the development of low bone density later in life?
(a) Do not engage in physical activity because this will wear out your bones
faster.
(b) Lose weight to reduce the stress on your bones when you walk.
(c) Regularly engage in weight bearing exercises.
(d) Drink a lot of water so that the calcium absorbs more effectively into your
intestine.
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6. Lipid-soluble (lipophilic) chemical messengers diffuse across the membrane. What
are the next two steps (in order)?
(a) Turns on genes to make new protein, binds to cytosolic or nuclear
receptors
(b) Binds to cytosolic or nuclear receptors, turns on genes to make new
protein
(c) Directly alters the activity of existing enzymes, binds to cell surface
receptor
(d) Binds to cell surface receptor, directly alters the activity of the enzymes
7. The liver, skeletal muscle and adipose tissue all play an important role in the break-
down/assembly of molecules. Which of the following statements is correct?
(a) Lipolysis occurs in the liver and muscle, glycogenolysis occurs in the adipose
tissue
(b) Lipolysis occurs in the liver, glycogenolysis occurs in the adipose tissue and the
muscle
(c) Glycogenolysis occurs in the liver and muscle, lipolysis occurs in the adipose
tissue and muscle
(d) Gluconeogenesis occurs in the liver, adipose tissue, and the muscle
8. What do neurotransmitters and hormones have in common?
(a) they are soluble in water
(b) they are proteins
(c) they are chemical messengers
(d) they have nothing in common
9. On your way to class one day, your friend jumps out from behind a pillar, thus
frightening you. What reaction occurs in the nervous system in response to this
terrifying experience?
(a) The sympathetic nervous system reacts by releasing norepinephrine
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