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Worksheetsbio - sec.2/ Excretion
Total questions: 18
Worksheet time: 6mins
During hot weather, the rate of sweat secretion increase
as the blood Vessels in the skin .............
Constrict
Contract
dilate
branched
the blood Vessel which contains the highest
amount of urea is ..............
blood capillaries Comes out side the nephren
hepatic Vein
renal Vein
hepatic portal vein
The blood of the kidney failure patient is filtered through the dialysis, depending on
the phenomenon of................
selective permeability
diffusion
osmosis
active transport
When the percentage of glucose in the renal artery is much higher than that of glucose in
the renal vein, this indicates that the occurrence of a disturbance in the processes which
occurred in.............
Bowman's capsule.
nephric tubule.
glomerulus.
collecting duct
Transpiration pull will be maximum under which of the following conditions ? .............
Open stomata, dry atmosphere and moist soil.
Open stomata, high humid atmosphere and well irrigated soil.
Open stomata, high humid atmosphere and dry soil.
Close stomata, dry atmosphere and dry soil.
Which of the following cases is not occurred when the absence of air chambers from the leaves of bean plant ? ..................
The ascent of water and salts in the leaves is stopped.
The stomatal transpiration is stopped in the plant.
The increase of plant temperature which leads to causing a harm to the protoplast.
The cuticular transpiration in plant is stopped.
By comparing an equal amount of urine and sweat, we found always that ..........
thể percentage of nitrogenous wastes is higher in the sweat.
the percentage of salts is equal in each one.
the percentage of nitrogenous wastes is higher in the urine.
the percentage of salts is higher in sweat.
Which of the following statements disagrees with the main function of kidney in human ? ............
The constancy of water percentage in the body cells.
The getting rid of excess water.
The increase of osmotic pressure.
The getting rid of excess salts.
If you know that the concentration of glucose in blood plasma is 0.1 g/cm, when the reabsorption process is complete with the efficiency of 100%, the concentrations of
glucose in the renal filtrate and urine are ............g/cm3 respectively.
zero and 0.1
0.1 and 0.1
0.1 and zero
zero and zero
From the functions of skin epidermis is .............
the extraction of nitrogenous wastes from the blood.
the preventing of bacterial invasion to the body.
the decrease of human body temperature.
the production of sweat.
Which of the following statements is wrong ?
The nephric tubule is ended in the kidney pelvis.
The nephron is connected with one collecting duct.
One collecting duct is connected with more than one nephron.
The nephron is connected with the collecting duct in the cortex of kidney.
Which of the following meals does its eating lead to the more production of urea? ................
A meal that is rich in fats and poor in fibers.
A meal that is poor in carbohydrates and rich in proteins.
A meal that is rich in carbohydrates and poor in fats.
A meal that is poor in fats and rich in fibers.
The kidneys are characterized by being ............
1ocated in'the lower part of the abdominal cavity of human.
long in rabbits.
extended on two sides of the vertebral column in salamander.
more compact in frog.
All the following statements agree with the dialysis, except ............
the concentration of glucose and minerals in the purified liquid is equal to their concentration in the patient's blood.
the membrane that found in the device is semi-permeable.
the excess minerals and poisons pass through the membrane in the device by diffusion.
the concentration of urea in the purified liquid is equal to its concentration in the blood during dialysis.
All the following factors can cause the increase of transpiration rate in the plant,
except ................
the increase of temperature.
the increase of light intensity
the opening of stomata.
the increase of atmospheric humidity.
The skin loses its natural colour in the absence of the cells that .............
form the layer adhering to the body.
found in the surface layer of skin epidermis.
found at the base of the inner layer of skin epidermis.
form the connective tissues in the skin dermis
Which of the following statements agrees with the excretion process of the plant that
lives in the soil rich in calcium ? ....................
The absence of calcium from the leaves reduces the rate of their fall.
The falling of leaves indicates that they are full with calcium element.
The plant gets rid of excess calcium by expelling out of leaves.
The plant doesn't need to the calcium and gets rid of it through the leaves.
The opposite graph illustrates a factor (X) that affects
the rate of transpiration, what do you expect to be this
factor (X) ? .................
lack of oxygen.
The temperature.
Light intensity.
Humidity.
