SAT Biology - Transportation
Exam Duration: 45 Mins Total Questions : 30
In plants, water rises beyond the point supported by the atmospheric pressure mostly because of
- (a)
Capillarity
- (b)
Gravity
- (c)
Evaporation
- (d)
Active transport
High root pressure can cause water to be lost by leaves through the process of
- (a)
Respiration
- (b)
Transpiration
- (c)
Guttation
- (d)
Translocation
Water potential is the
- (a)
combination of turgor pressure and pressure potential
- (b)
difference between pressure and osmotic potential
- (c)
combination of pressure potential and solute potential
- (d)
product of pressure potential and osmotic potential
Specific ions are acquired by root hairs by the process of
- (a)
Osmosis
- (b)
Active transport
- (c)
Reverse osmosis
- (d)
Simple diffusion
What is cortex?
- (a)
because they have cytoplasm that contain solutes
- (b)
tissues between the epidermis and the vascular bundles
- (c)
by active transport requiring ATP energy
- (d)
becomes a negative and get a bigger negative pressure
Which one of the following transports sugar from leave to taproots?
- (a)
Blood vessels
- (b)
Phloem
- (c)
Tracheids
- (d)
Xylem
Ions are absorbed by the plants through
- (a)
Difference in water potential
- (b)
Carnies and pumps
- (c)
Molecular diffusion
- (d)
Difference in D.P.D
Why is blood that flows from the lungs to the heart bright red rather than dark red colour?
- (a)
O2 makes it red
- (b)
CO2 makes it red
- (c)
Pigment makes it red
- (d)
Dye makes it red
Which of the following can best to compared to soldiers?
- (a)
Lungs
- (b)
Capillaries
- (c)
RBC
- (d)
WBC
Both erythrocytes and leucocytes are formed in?
- (a)
Lymph nodes
- (b)
Bone marrow
- (c)
Thymus
- (d)
Arterial walls
What happens during diastole?
- (a)
Blood leaves ventricle
- (b)
Blood leaves heart
- (c)
Blood enters in heart
- (d)
Blood enters lungs
The cells lining the blood vessels belong to the category of
- (a)
Columnar epithelium
- (b)
Connective tissue
- (c)
Smooth muscle tissue
- (d)
Squamous epithelium
The cytoplasm of the root cells called as
- (a)
Symplast
- (b)
Apoplast
- (c)
Endodermis
- (d)
Xylem
What is the body temperature of a normal man?
- (a)
81.10C
- (b)
36.90C
- (c)
98.60C
- (d)
21.70C
Which of the following helps in clotting of blood?
- (a)
Vit B1
- (b)
Vit B2
- (c)
Vit D
- (d)
Vit K
Leukemia is a disease of the
- (a)
Lungs
- (b)
Blood
- (c)
Skin
- (d)
Nerves
First step in the flux of water into a plant seed is
- (a)
Osmosis
- (b)
Imbibition
- (c)
Absorption
- (d)
Suction
When the ventricles contract blood is forced into
- (a)
The aorta
- (b)
The vena cava
- (c)
The pulmonary artery and the aorta
- (d)
The pulmonary artery
The haemoglobin in a red blood cell helps to
- (a)
carry O2
- (b)
fight infection
- (c)
carry carbon dioxide
- (d)
clot blood
What is the name of the blood vessel that leads into the right artrium?
- (a)
Pulmonary vein
- (b)
Vena cava
- (c)
Pulmonary artery
- (d)
Aorta
Carrier proteins are involved in
- (a)
Water transport
- (b)
Water evaporation
- (c)
Active transport
- (d)
Passive transport
Transpiration is measured by _____
- (a)
Ganong's potometer
- (b)
Moll's experiment
- (c)
Auxanometer
- (d)
Respirometer
Cells becomes turgid when placed in
- (a)
Isotonic solution
- (b)
Hypertonic solution
- (c)
Hypotonic solution
- (d)
All of these
The plant die due to wilting when
- (a)
available light is reduced to half
- (b)
xylem is blocked
- (c)
a few roots are broken
- (d)
phloem is blocked
Transpiration through small opening present in bark of woody stem surrounding by complementary cell is
- (a)
Stomatal transpiration
- (b)
Cuticular transpiration
- (c)
Lenticular transpiration
- (d)
Foliar transpiration
The plasma of a normal adult
- (a)
is about 60% water
- (b)
account for 10% of body weight
- (c)
contains about 8 m moles of potassium (K+)
- (d)
contain about 140 mm of (Na+)
The internal pacemaker that sets biological rhythms
- (a)
is located in the brain
- (b)
is located in the heart
- (c)
Both A and B
- (d)
None of the above
During the cardiac cycle
- (a)
the duration of diastole is greater than that of systole
- (b)
the duration of systole is greater than that of diastole
- (c)
both A and B
- (d)
none of the above
Which is the largest artery in the human body?
- (a)
Aorta
- (b)
Renal artery
- (c)
Pulmonary artery
- (d)
Hepatic artery
The average diameter of RBC of man is
- (a)
7.2 μm
- (b)
8.1 μm
- (c)
9.2 μm
- (d)
10.3 μm
