Given below is a table. Fill in the gaps Property Simple diffusion Facilitated transport Active Transport i. Highly selective ________________ Yes ________________ ii. Uphill transport ________________ ________________ Yes iii. Requires ATP ________________ ________________ ________________

Property Simple Diffusion Facilitated Transport Active Transport Highly selective No Yes Yes Uphill transport No No Yes Requires ATP No No Yes Active Transport: It uses energy to pump molecules against a concentration gradient. Hence, different proteins in the membrane play a significant role in active transport. Carrier protein involved in active transportation of molecules across the membrane. Facilitated Transport: In facilitated transport, special proteins help in the movement of substances across the membrane without the expenditure of ATP. Facilitated transport is particular as it allows a cell to select substances for uptake. Simple Diffusion: It is a physical phenomenon which involves the movement of water from higher concentration to lower concentration. It is not a selective process and does not require energy.

E M B I B E

NCERT Exemplar Biology - Class 11>Chapter 11 - Transport in Plants>VERY SHORT ANSWER TYPE QUESTIONS>Q 9

HARD

11th CBSE

IMPORTANT

Earn 100

In a plant, translocation in xylem is unidirectional while in phloem it is bidirectional. Explain

Important Questions on Transport in Plants

HARD

11th CBSE

IMPORTANT

NCERT Exemplar Biology - Class 11>Chapter 11 - Transport in Plants>VERY SHORT ANSWER TYPE QUESTIONS>Q 11

Given below is a table. Fill in the gaps

Property	Simple diffusion	Facilitated transport	Active Transport
i. Highly selective	________________	Yes	________________
ii. Uphill transport	________________	________________	Yes
iii. Requires ATP	________________	________________	________________