Q.1.
The movement of molecules from their lower concentration to a higher concentration with the help of energy
Q.2.
The region of stem between two nodes is the
Q.3.
How do water enter the roots from the soil?
Q.4.
Which are the vascular tissues in plants that are responsible for transporting substance around the plant?
Q.5.
Which are examples of autotrophs?
Q.6.
The three main functions of roots in a plant are:
Q.7.
What is a cuticle?
Q.8.
Plant absorbs water through the _________.
Q.9.
This is the definition for which word:The movement of water molecules from a high concentration of water to a low concentration of water across a partially permeable membrane.
Q.10.
Plant transports food made in the leaves to __________.
Q.11.
What happens to the transpiration rate as light intensity increases?
Q.12.
Why is the evaporation of water from leaves important?
Q.13.
These are made up of group of specialised cells that conduct water, dissolved salts and food up or down the stem.
Q.14.
_________ are elongated and lignified supporting cells in the xylem.
Q.15.
Two main vascular bundles are the xylem and phloem. Food substances travel in the _____________ and water and salts are mainly conducted in the ______________.
Q.16.
This is a substance that makes the cell wall very strong and impermeable.
Q.17.
The region of stem from which leaves and buds arise is called
Q.18.
The shoot system consists of the following except:
Q.19.
Which of the following is paired correctly:
Q.20.
___________ make food by photosynthesis and pass it back to the stem.