Advertisements
Advertisements
प्रश्न
The figure below represents the vertical section of a leaf:
(i) Name the parts 1 to 5.
(ii) How many veins have been shown?
(iii) State the functions of parts 4 and 5.
उत्तर
(i)
- Cuticle
- Upper Epidermis
- Palisade tissue/chloroplast
- Xylem
- Stomata
(ii) One vein has been shown.
(iii) Xylem – helps in the conduction of water.
Stomata – through which exchange of gases takes place.
APPEARS IN
संबंधित प्रश्न
Give appropriate biological/technical terms for the following:
An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
(ii) Name the tropic movement shown by part 1.
Match the terms of column I with those in column II:
Column I | Column II |
(i) Stomata closed | (a) decomposers |
(ii) Autotrophs | (b) light reaction |
(iii) By-products of photosynthesis | (c) animals |
(iv) Photolysis | (d) during night |
(v) Bacteria and fungi | (e) green plants |
( f) oxygen |
Choose the correct answer:
Which one of the following is the best reason for leaving a plant in a dark place before carrying out experiments on photosynthesis?
The production of starch, and not glucose, is often used as a measure of photosynthesis in leaves because
The rate of photosynthesis is not affected by
During photosynthesis, the oxygen in glucose comes from
Name the following:
The category of organisms that prepare their own food from basic raw materials.
Write an experiment to demonstrate that CO2 is necessary for photosynthesis.
Complete the following sentence with appropriate word:
A dark reaction is a __________ reaction.
Choose the Correct Answer:
Which would do maximum harm to a tree?
Choose the correct option.
A cell that lacks chloroplast does not ______.
Fill in the blank by rearranging the letter in the bracket.
Pigment involved in the food synthesis is _________ (phllylochor).
What will happen if we remove plants from the aquarium?
State whether true or false. If false, correct the statement.
Plants lose water when the stomata on leaves are closed.
The source of O2 liberated in photosynthesis is ______.
The role of chlorophyll is to absorb light from the sun.
The minerals like nitrogen, potassium, and phosphorus, which are required in substantial quantity by the plants are called ______.