Translocation of organic solutes_MCQ_Advance Level

Translocation of organic solutes - Advance

Dear Readers,

The movement of organic food materials or the solutes in soluble form one place to. another in higher plants is called as translocation of organic solutes.

Q1.  Much of the starch is deposited in banana fruit as it matures. Which of the following explains how the starch gets there

•  Starch solution passes through cells such as companion cells to fruit
•  Starch solution passes through cells of phloem to fruit
•  A sugar solution passes through phloem cells to the fruit where it is changed to starch
•  Starch grains passes through cells from xylem to fruit

A sugar solution passes through phloem cells to the fruit where it is changed to starch

Q2.  Starch is insoluble in water yet it is accumulated in large quantities in potato because

•  It is synthesized in potato tuber itself
•  It is translocated from the leaves to the potato tuber in the form of sugar
•  Soil micro-organism deposit starch in tuber
•  It is useful consumption

It is translocated from the leaves to the potato tuber in the form of sugar

Q3.  During transport of sugar or amino acid through cell membrane

•  Na⁺ ions move against the direction of concentration gradient
•  Na⁺ ions move in both directions irrespective of its concentration gradient
•  No net Na⁺ ions movement
•  Na⁺ ions move in the direction of its concentration gradient

Na⁺ ions move against the direction of concentration gradient

Q4.  Meaningful girdling (Ringing) experiments can not be done on sugarcane because

•  Phloem is present inside the xylem
•  It can not tolerate the injury
•  Vascular bundles are scattered
•  Plants are very delicate

Vascular bundles are scattered

Q5.  What is the substrate for flooting of food in the plants

•  IAA
•  Abscisic acid
•  GA
•   K⁺ ion

K⁺ ion

Q6. Which plant part shows upward flow in more quantity

•  Developing seed
•  Germinating seed
•  Dormant seed
•  All of these

Germinating seed

Q7.  Intensity of light required for translocation of sugar as compared to photosynthesis is

•  More
•  Less
•   Equal in both
•  None of these

Less

Q8.  The cytoplasm of surrounding cells remain connected through each other by plasmodesmeta. This continuity is called

•  Symplast
•  Protoplast
•  Desmoplast
•  All of these

Symplast

Q9.  Which of the following theory shows bidirectional translocation

•   Electro-osmosis
•  Transcellular streaming
•  Protoplasmic streaming
•  All of these

Protoplasmic streaming

Q10.  Who proposed blood like translocation of solutes

•  Spanner
•  Munch
•  Williams
•  Jones

Munch