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WorksheetsPengukuhan PSPM Siri 4
Total questions: 40
Worksheet time: 20mins
Which of nerve impulse can stimulate normal exhalation and inhibits over expansion of lungs?
Impulse from the carotid artery.
Impulse from the intercostal muscle.
Impulse from the diaphragm.
Impulse from stretch receptors in the alveolar wall.
Which of following act as peripheral chemoreceptors in controlling breathing?
Aortic bodies
Carotid bodies
Stretch receptors
Carotid artery
Which are following are true about hemoglobin?
Contain 4 heme group
Found in white blood cells
Has higher affinity towards oxygen at lung
Can transport some CO2
Which of following are true about myoglobin?
Can be found in red blood cell
Act as oxygen storing pigment
Show cooperativity binding with O2
Has higher affinity towards O2 compare to hemoglobin
Carbon dioxide in the blood is transported in the form of
Bicarbonate ion
Carbaminohemoglobin
Carboxyhemoglobin
Dissolve carbon dioxide
Involuntary control of breathing in mammals is controlled by a part of the brain called the
hypothalamus
medulla oblongata
pons
cerebellum
Bohr shift occurs due to
a rise in the partial pressure of carbon dioxide which lowers the affinity of hemoglobin for oxygen
an increase in partial pressure of oxygen which shift the oxygen dissociation curve to the right
an increase in partial pressure of carbon dioxide which shift the oxygen dissociation curve to the left
a rise in the partial pressure of oxygen which lowers the affinity of hemoglobin for oxygen
Stomata open when guard cells
become flaccid
has increase turgor pressure
has decrease turgor pressure
become turgid
What means by oxygen dissociation curve for hemoglobin that shift to the right?
Affinity hemoglobin towards oxygen become increase
Affinity hemoglobin towards oxygen become decrease
More oxyhemoglobin dissociate and release oxygen
More oxyhemoglobin retain their form
The chloride shift in red blood cells is the movement of
chloride ion into the red blood cell to balance the bicarbonate ion that diffuse out
chloride ion into the blood plasma to balance the bicarbonate ion that diffuse out
bicarbonate ion into the red blood cell to balance the chloride ion that diffuse in
bicarbonate ion into the blood plasma to balance the chloride ion that diffuse out
The cardiac cycle is best describe as
The alternating contraction and relaxation of heart chambers.
The movement of blood from lungs to heart and back to lungs.
The movement of blood from systemic to pulmonary circulation.
The passage of electrical impulses from AV node to SA node to heart muscle
The stage of cardiac cycle that would be affected first if the nerve fibres which make up the bundle of His were cut through is
Atrial systole
Ventricular systole
Ventricular diastole
Atrial and ventricular systole
What happen during ventricular systole?
Ventricular pressure increases
Ventricular pressure desreases
Semilunar valve close
Atrioventricular valve close
Which of the following structures is responsible to initiate the heartbeat?
Atrioventricular node.
Sinoatrial node.
Bundle of His
Purkinje fibers
Which of following true regarding to first sound?
occur during ventricular systole
occur during ventricular diastole
indicate by dub sound
occur when AV valve close
Which of the following are lymphoid organs?
Tonsil
Bone marrow
Spleen
Lymphocytes
Which of the following are false concerning the function of lymphatic system?
transport lipid from small intestine to blood circulation
transport lipid from blood circulation to small intestine
collect and return excess interstitial fluid from tissue to blood capillary
collect and return excess interstitial fluid from blood capillary to tissue
Pulling force in transportation of water are due to:
Osmotic flow of water into root xylem.
Adhesion of water molecules
Transpiration of water in leaves
Cohesion of water molecules to xylem walls
What is the direction of phloem sap flows in plants?
From a sugar source to a sugar sink
From leaf to root
From root to leaf
From a sugar sink to a sugar source
Which statement is true about Casparian strip?
It is thickened strip within the endodermal cell wall.
It ensures movement of water in the root by the apoplast way
It ensures movement of water in the root by the symplast way
It consists of suberin which is not permeable to water.
Which of the following are true about passage of water in the root
Apoplast pathway
Symplast pathway
Transmembrane pathway
Osmosis
Which are true regarding the ventricular diastole?
blood enter both ventricle from vena cava
AV valve open
Dub sound produce
Pressure in ventricle higher than aorta
The oxygen-rich blood enters the heart via the
pulmonary artery
pulmonary vein
vena cava
aorta
When impulses are conducted through the heart, transmission is delayed at the _______________ so that the ___________ fully contract and empty their blood to ________
Sinoatrial node; atria; ventricle
Sinoatrial node; ventricle; atria
Atrioventricular node; ventricle, atria
Atrioventricular node; atria; ventricle
The lub sound is produced by closing of the _____________________ and ____________ valves.
Aortic semilunar; pulmonary semilunar
Bicuspid; aortic semilunar
Tricuspid; bicuspid
Tricuspid; pulmonary semilunar
Choose the correct pathway for water in plants
Soil → epidermis → xylem → root cortex
Soil → xylem → epidermis → root cortex
Soil → root cortex → epidermis → xylem
Soil → epidermis → root cortex → xylem
Movement of water via symplast pathway probably through
cytoplasm
plasmodesmata
cell wall
vacuole
Translocation of sugar from source to sink cell in form of
sucrose
glucose
maltose
fructose
Movement of sugar from source cell to adjacent sieve tube is by
active trasnport
passive transport
osmosis
hydrostatic pressure
Lipid that enter the lacteal known as
chyle
chylomicron
fatty acids
monoglyceride
what is the best description for homeostasis?
to maintain a relatively constant internal environment
to maintain a relatively constant external environment
to maintain a relatively constant internal and external environment
to change both internal and external environment
Which of the following are true about homesotatic control system?
Receptor detect any changes from normal condition
Effector produce response to restore normal condition
Effector detect any changes from normal condition
Receptor produce response to restore normal condition
Which are following are true about blood glucose regulation?
Glycogen is secrete by alpha cells
Insulin is secrete by beta cells
hypoglycemia indicate lower blood glucose
hyperglycemia indicate higher blood glucose
Glycogenolysis refers to conversion of
glycogen to glucose
glucose to glycogen
amino acid to glucose
glycogen to amino acid
Which of the following is not a part of tubular components in nephron?
Bowman's capsule
Collecting duct
Loop of Henle
Glomerulus
Which are following are true regarding the location and stage of urine formation
glomerulus ; ultrafiltration
proximal convoluted tubule ; reabsorption
proximal convoluted tubule ; secretion
distal convoluted tubule ; secretion
Which substances are reabsorbed to the blood capillary?
glucose
water
bicarbonate ion
hydrogen ion
which are true regarding to counter current multiplier mechanism?
involve loop of Henle and vasa recta
to form concentrated urine
filtrate down the descending limb and up the ascending limb
filtrate become hypotonic in descending limb and become hypertonic in ascending limb
Main target cell for ADH is
reabsorption of water in collecting duct
reabsorption of water in loop of Henle
reabsorption of water in proximal convoluted tubule
reabsorption of water in distal convoluted tubule
What happen if blood osmolarity higher than normal?
less ADH is secrete
more reabsorption of water from collecting duct
dilute urine produce
large volume urine produce
