1) which of the following enzymes is(are) involved in the transport of co2 by blood?
a.carbonic anhydrasec.both a and b
b.hemoglobind.neither a nor b
2) which of the following best describes the properties of the elements?
a.chemical and physical properties vary in a systematic way as one moves across a row
of the periodic table.
b.chemical and physical properties vary in a systematic way as one moves down a
column of the periodic table.
c.both a and b
d.neither a nor b
3) which halogen atom is most electronegative?
a.bromine
b.chlorine
c.fluorine
d.iodine
4) which of the following is true about a molecule which contains two polar bonds
which have the same degree of polarity?
a.it will always be polar.
b.it will never be polar.
c.it will only be polar if it is bent.
d.it will only be polar if it is linear.
5) which of the following results from the fact that the osmotic pressure of blood is
higher than pressure at the venous capillaries?
a.nutrients flow from the capillaries into the interstitial fluid.
b.wastes flow from the interstitial fluid into the capillaries.
c.both a and b
d.neither a nor b
6) what is the formula of the compound formed between barium and oxygen?
a.ba2o2
b.ba2o
c.bao2
d.bao
7) the secretion of renin by the kidneys results in which of the following?
a.the conversion of angiotensin to angiotensinogen
b.an decrease in blood pressure
c.both a and b
d.neither a nor b
8) the following images shows some representations of some of the common
components of blood.
if whole blood is centrifuged and then separated into a sediment and plasma, which of
the following would be the most likely to be found in the plasma?
a.erythrocytes
b.thrombocytes
c.leukocytes
d.agranular leukocytes
e.all of these will be found in the sediment.
9) the following represents carbonic acid, an important part of the buffer system in
blood.
how many single covalent bonds are represented in this structure?
a.6
b.5
c.4
d.3
10) which of the following bonds is the most polar?
a.h-f
b.h-cl
c.h-br
d.h-i
11) in the region of the periodic table associated with the transition elements which type
of orbitals are being filled?
a.s
b.p
c.d
d.f
12) when a particular solid sample is examined under a microscope it is observed that
there are regions which are black and regions which are yellow. what type of material is
this sample?
a.a compound
b.an element
c.a homogeneous mixture
d.a heterogeneous mixture
13) how many unpaired electrons are there in a carbon atom in its ground state?
a.1
b.2
c.3
d.4
14) which of the following gives the correct order of pressures?
a.arterial > osmotic blood pressure > venous
b.arterial > venous > osmotic blood pressure
c.osmotic > blood pressure > arterial > venous
d.venous > osmotic blood pressure > venous
15) which of the following blood cells are the largest?
a.erythrocytesc.neutrophils
b.monocytesd.thrombocytes
16) which of the following products are formed when potassium reacts with water?
a.kh + o2
b.ko + h2
c.koh + h2
d.k2o + h2
17) the word atom is derived from a word in which language?
a.arabic
b.greek
c.hebrew
d.latin
18) which of the following is not true of red blood cells?
a.they are destroyed in the kidneys.
b.they are formed in bone marrow.
c.they have a nucleus.
d.none, all of these are true.
19) which of the following is the correct order of filling orbitals?
a.1s, 2s, 2p, 3s, 3p, 3d, 4s
b.1s, 2s, 2p, 3s, 3p, 4s, 3d
c.1s, 2s, 3s, 4s, 2p, 3p, 3d
d.none of these