HUMAN BIOLOGY (MLTS2101)
Biological Science - BS
Semester: First Semester
Level: 200
Year: 2015
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-Work-Fatherland
P. O. BOX 39 Bambili
MINISTERE DE L’ENSEIGNEMENT MINISTER OF HIGHER EDUCATION
SUPERIEUR
UNIVERSITY OF BAMENDA
ContinuousAssessment
Human
Biology
Paper 3
PART 1: MCQ 21 Marks)
Instructions: Answer the questions by selecting the
single letter that best answers the question (N/B the
right answer is 1 mark an d the wrong answer is- 0
mark)
1. The outer layer of the skin is composed of
a) transitional epithelium
b) stratified squamous epithelium
c) pseudostratified columnar epithelium
d) stratified columnar epithelium ;
e) none o.f the above
2. Blood cells all develop from a common stem cell
in bone marrow, but early in development they split
into separate lineages. Which three of these cells
develop from the myeloblast lineage?
a) monocyte, erythrocyte, neutrophil
b) thrombocyte, erythrocyte, lymphocyte
c) basophil, eosinophil, neutrdphil.
d) lymphocyte, monocyte, erythrocyte
e) none of the above
3. Connective tissue is complex because it has a
variety of cells and a non cellular background called
a ----------------- surrounding them
a) collagen b) elastin c) mucous sescretion d) matrix
e) none ofthese
4. Epithelial tissue is characterized by each of these
traits, except that -------------
a) It lacks blood vessels
b) It is anchored to a basement membrane
c) It functions in secretion, absorption, and excretion
d) Epithelial cells are loosely packed and have much
intercellular material e) None of the above.
5. Which of the following pairings is incorrect?
a) hyaline. cartifage, articular ends’ of long bones
b) fibrocartilage, invertebral discs and menisci
c) elastic cartilage, epiglottis, and external ear
d) supporting connective tissue, blood
e) None of the above.
6. In which choice are the major groups of plasma
proteins listed in order from highest to lowest
percent?
a) albumins, globulins, fibrinogen
b) fibrinogen, globulins, albumins
c) globulins, fibrinogen, albumins
7. The junction, between the diaphysis and epiphysis
in a growing bone is called the ---
a) endosteum c) epiphyseal disk b) periosteum
d) articular cartilage e) none of these
8. In adults, red blood cells are made in one place,
spend most of their lifespan in another, and most are
finally destroyed in yet another place. Which choice
lists these locations in chronological order?
a) spleen, blood vessels, spleen b) bone marrow,
blood vessels, spleen c) bone marrow, spleen, blood
vessels d) blood vessels, spleen, bone marrow e)
none of the above.
9. The benefit of the biconcave shape of red blood
cells is that it
a) Gives more room for the nucleus and organelle
b)Decreases the distance between the cell .
membrane and hemoglobin molecules; facilitating
oxygen uptake c) Allows the cells to hold more
hemoglobin- d) Keeps them from leaking out through
the walls of capillaries e) c and d
10. During platelet plug formation, platelets release
these substances, which cause more platelets to
adhere to the plug. a) prostacyclin and NO b)heparin
and plasmin c) ADP and thromboxanes d)
erythropoietin and bilirubin e) a and c
11.Which part of the brain deals primarily with
spatial processing
www.schoolfaqs.net
A) thalamus B) left hemisphere C) right hemisphere
D) hypothalamus
12. In the human brain, the temporal lobe is located:
a) above the parietal b) above the frontal lobe
c) beneath the frontal lobe d) to the left of the
occipital lobe
13. The lefts hemisphere of the brain specializes in
the area of
a) Perceptual tasks b) emotional content of language
c) speech d) self understanding
14. Which area of the limbic system is responsible
for learning on basis of reward and punishment?
a) thalamus b) hypothalamus c) amygdala d)
hypocampus
15. Prior to the start of an action potential the
membrane of neuron is normally:
a) depolarized with a high concentration of sodium
ions inside the nerve cell b) repolarized with a high
concentration of potassium ions on both sides of the
cell wall d) at rest, with a reciprocal flew of
potassium and sodium ions into and out of the cell
c) at rest, with established sodium and potassium ions
concentration on either side.
16. Which part of the brain controls breathing?
a) hypothalamus b) medulla oblongata c) spinal brain
d) midbrain
17. The primary responsibility of central nervous
system is to
a) process changes in internal and external stimuli
and communicate this information to the brain
b) synthesize, sensory input to compute an
appropriate motor response
c) regulate involuntary movements such as internal
organ functions. d) control voluntary movements
such as those in the bones, joins and skeletal muscles
18. What is the relationship between the cerebrum
and cerebral cortex?
a) The cerebral cortex is located above and. dictates
the activity of the cerebrum b) the cerebrum and
cerebral cortex together make up the frontal lobe
c) the cerebrum is covered by the cerebral cortex
d) the cerebral cortex is covered by the cerebrum .
19. Which system (s) would likely be activated if you
encountered something you were afraid of?
a) the autonomic nervous system. b) the peripheral
nervous system (PNS) c) the sympathetic nervous
system (SNS) d) the autonomic nervous system and
SNS e) all of the above
20. What brain structures are most, likely to be
involved in the act of raising one’s hand?
a) medulla Oblongata, pons and spinal cord b)
cerebellum and spinal cord c) cerebellum and
medulla oblongata d) thalamus and hypothalamus
21. Damage to the hippocampus often results in
which of the following
a) difficulty in accessing memories prior to the
damage b) difficulty in forming new memories
c) neither of these answers d) both of these answers
PART 2: Short answer essay questions (9 Marks)
1 a) Define the term osteogenesis (I mark)
b) Name and describe the different types of
osteogenesis (4 marks
2- Using the diagram, describe the events
that take place along the axon after
stimulation (4 marks)
www.schoolfaqs.net
www.schoolfaqs.net