As Bio - Transport In Plants

17 Questions | By Electro_girl | Updated: Mar 21, 2022 | Attempts: 2794

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A quiz on Transport in Plants. . .

Questions and Answers

1.

Which of these is not a reason why plants need a transport system?
- A.
  
  They can't rely on diffusion alone
- B.
  
  Too active
- C.
  
  Small surface area to volume ratio
- D.
  
  Multicellular
2.

Xylem tissue doesn't carry...
- A.
  
  Water
- B.
  
  Inorganic substances
- C.
  
  Organic nutrient
3.

How does phloem transport sugars?
- A.
  
  Transpiration
- B.
  
  Translocation
4.

The distribution of the xylem and phloem in the stem is like:
- A.
  
  Xylem in the middle and phloem outside
- B.
  
  Seperate vascular bundles around a medula
- C.
  
  Forming a central midribi
5.

Root hair cells absorb mineral ions using
- A.
  
  Active transport
- B.
  
  Diffusion
- C.
  
  Osmosis
6.

Active transport of minerals creates a water potential gradient into the
7.

Which is the most commonly used pathway for water
- A.
  
  Symplast pathway
- B.
  
  Apoplast pathway
- C.
  
  Vacuolar pathway
8.

In the cell wall what enables the apoplast pathway to function
- A.
  
  Cellulose
- B.
  
  Water filled spaces
- C.
  
  Cytoplasm
- D.
  
  Oxygen
9.

In the symplast pathway through what does the water move from cell to cell?
10.

The casparian strip at the endodermis blocks which pathway?
- A.
  
  Apoplast
- B.
  
  Symplast
11.

The casperian strip contains what making it waterproof?
- A.
  
  Waxy cutile
- B.
  
  Fibres
- C.
  
  Suberin
12.

Which of these is not an adaption of parenchyma?
- A.
  
  Elongated cells
- B.
  
  Isodimetric
- C.
  
  No cholorplast
13.

What is the role of the fibres?
- A.
  
  Support vessels
- B.
  
  Transport water
- C.
  
  Packing tissue
14.

Why are xylem cells dead?
- A.
  
  Because they have no nucleus
- B.
  
  Lignin is impermeable
- C.
  
  Just because
15.

Transpiration is:
- A.
  
  The movement of water up the xylem using osmosis
- B.
  
  The loss of water vapour from areal parts of the plant due to evaporation
16.

Which of these is not an advantage of transpiration?
- A.
  
  It enables a transpiration stream
- B.
  
  Aids translocation
- C.
  
  Cooling effect
17.

Because of ________ the molecules gain more kinetic energy spreading out faster. ______ also provides latent heat of vapourisation.