Page 134 - 3 ADIM DENEME SINAVI YDT KİTAP 2.ADIM

YDT • İngilizce 2. ADIM • 5. DENEME

42. According to the passage, the transport systems
41. - 43. soruları aşağıdaki parçaya göre cevaplayınız. in plants ----.

Plants have three systems for transporting substances: A) developed a long time ago and have changed
steadily
food, water, and air. The food transport mechanism
is the most delicate, as it is alive and so readily B) enable a plant to act as a functional life form in its
injured—wounds, heat, and hazardous chemical environment
exposure harm the food delivery system. Water C) are fragile mechanisms that receive water and
transfer is less delicate than food transfer. Capillaries, nutrients from the soil
which are long, sturdy tubes that transmit water, D) do not work properly when the plant is grown in
comprise dead cells. Food is transported through the water
bark and water through the wood. As the tree grows, E) prevent the tissues from becoming useless and
these transport tissues wear out and must be replaced, help them be regenerated
so fresh water-transporting tubes emerge in the new
bark every year, and a thin layer of cells causes the
rejuvenation. The cambium, made up of these cells,
receives water, nutrients, and nourishment from the
wood and bark, allowing it to produce new bark and
wood tissue. The air transport system is made up of air
spaces between cells. The system is well developed
in marsh plants because they thrive on moist soil;
therefore, their roots are not exposed to oxygen. Marsh
plants’ leaves may carry oxygen from the stomata (tiny
openings on the leaf surface) to the roots via the stem.
These mechanisms allow a plant to function as an
entire organism.

41. The underlined word ‘rejuvenation’ in the passage 43. It can be inferred from the passage that food,
means ----. water, and air ----.

A) reproduction of the tissues A) are carried to the plant through transporting tubes
B) transportation of the nutrients B) can be beneficial for the life of a plant only if they
C) deterioration of the cells are received to produce new tissues
C) belong to a system that works properly in marsh
D) obtaining oxygen from the leaves
plants
E) transmission of water
D) are vital for the plants to make them survive if
distributed in a natural way
E) may be harmful when they contain poisonous
chemicals

12. SINIF 132 Diğer sayfaya geçiniz.