Transport MCQ
Choose the correct answer
1) Blood pressure in the veins is _____ than the blood pressure in the arteries
a ) same b) slightly lower c) slightly higher d) much higher
Ans. Much higher
2) Phloem transport of sucrose can be described as going from
“source to sink” which of the following would not normally function as a sink?
a) Mature leaf b) Storage organ
c) Growing root d) Both ‘b’ and ‘c’
Ans. Both b and c
3 ) These vessels carry oxygenated blood away from the heart
a ) Veins b) Arteries c) Capillaries d) All of them
Ans. Arteries
4) Which of these are involved in the clotting of blood?
a) Platelets b) Hemoglobin c) Albumin d) Globulin
Ans platelets
5) the pulse rate is _____ to the heartbeat
a )Exactly equal b) slightly more
c )Slightly less d) it fluctuates
Ans. Exactly equal
6) Root hairs are most important to a plant because they
a) Store starch b) Contain xylem tissues
c) Provide a habitat for nitrogen fixing bacteria
d) Increase the surface area for absorption.
Ans Increase the surface area for absorption.
7) On average, a healthy heart beats __ times in a minute
a ) 70 b) 75 c) 72 d) 76
Ans. 72
8) Part of root between epidermis and endodermis called
a) Xylem b) Root hair
c) Phloem d) Cortex
Ans. Cortex
9) Movement of water molecules from the area of higher water potential to the area of lower water potential called
a) Diffusion b) Osmosis
c) Active transport d) Water potential
Ans.Osmosis
12) The transport in organisms takes place between
a ) environment to organ
b) cells to organ
c) both a and b
d) only a
Ans. Both a and b
13) The outer layer of the root is known as
a ) epidermis b) epithelial c) cortex d) root hair
Ans. Epidermis
14) What are the two ways by which place aquire minerals
a ) active transport b) diffusion c) transpiration d) both a and b
Ans. Both a and b
15) This loss of internal water of plant in the form of vapours from aerial part of plant is called ______.
a) transportation b) translocation c) transpiration d) none
Ans. Transpiration
16) It’s the specialized guard cells that takes part in Transpiration
a ) stomata b) stem c) stranded d) spiracles
Ans. Stomata
17) Leaves that have stomata at lower epidermis called ______
leaves
a ) monofacial b) bifacial c) difacial d) polyfacial
Ans. Bifacial
18) Which are true statement about stomata
a ) they are the pores found on the leaves
b) they are surrounded by kidney shaped guard cells
c ) the stomata remain open during the sunny day
d ) all of them are correct
Ans. All of them are correct
19) Rate of Transpiration increases with
a ) increase in temperature
b) high humidity
c) increase in wind velocity
d) both a and c
Ans. Both a and c
20) Low atmospheric pressure _____ the rate of transpiration through reduction in the density of air.
a ) increases b) decreases
c) it has no impact d) all
Ans. Increases
21) The walls of xylem vessels became strong by the decomposition of chemical substance called ____.
a ) lignite b) lignin c) lithium d) linseed
Ans. Lignin
22) The movement of food from leaves to different parts of plant through phloem elements is called
a ) transportation b) transpiration c) translocation
d) transposition
Ans. Translocation
23) Blood , heart and blood vessels all constitute the
a ) transport system b) Circulatory system d) muscular system
d) lymph vessels
Ans. Circulatory system
24) 55 percent of the blood is composed of
a ) RBCs b) WBCs c) Platelets d) Plasma
Ans. Plasma
25) Identity the incorrect statement regarding RBCs
a ) It’s is cuboidal in shape
b) it’s lives an average of 120 days
c) it has a diameter of0.007-0.008 mm
d) it’s destroyed in spleen and liver
Ans. It’s destroyed in spleen and liver
26) They together constitute more than 90 percent of the total WBCs count
a ) Eosinophils , Basophils
b) Lymphocytes , Monocytes
c) Eosinophils , Monocytes
d) Lymphocytes , Neutrophils
Ans. Lymphocytes , Neutrophils
27) The platelets are stimulated when exposed to
a) water b) oxygen c) air d) brain
Ans. Air
28) A person suffering from leukemia generally has
a ) low WBCs count in blood
b) low RBCs count in blood
c) light colored urine
d) a grown appetite
Ans.low RBCs count in blood
29) Which one of the statements is not true about heart
a ) it located slightly to the right side of the thoracic cavity
b) it’s a major organ of the Circulatory system
c) it’s has a conical shape
d) it has a total of four chambers
Ans. it located slightly to the right side of the thoracic cavity
30) the right atrium and right ventricle are connected by _____ valve.
a ) bicuspid b) tricuspid d) monocuspid d) polycuspid
Ans. Tricuspid
31) A type of circulatory system blood flow through the spaces among tissues called.
(I ) Open type circulatory system
(II ) Close type circulatory system
(III )Pulmonary circulatory system
a) I only b) II only
c) I and II d) II and III
Ans. I only
31) In human heart blood returning from lungs first drains into the
a ) Left atrium b) Left ventricle c) Right atrium d) Right ventricle
Ans. Left atrium
32) Human plasma proteins include which of the following?
(i) Fibrinogen (II) Haemoglobin (III) Albumin
a ) I only b) II only c ) I and II d) I and III
Ans. I and III
33) What regulates the flow of water through the xylem?
a ) Passive transport by the endodermis
b ) The number of companion cells in the phloem
c )The evaporation of water from the leaves
d )Active transport by sieve-tube membrane
Ans. Active transport by sieve-tube membrane