MP Board Class 6th Science Solutions Chapter 7 Getting to Know Plants
Getting to Know Plants Textbook Exercises
Correct the following statements and rewrite them in your notebook?
- Stem absorbs water and minerals from the soil.
- Leaves hold the plant upright.
- Roots conduct water to the leaves.
- The number of petals and sepals in a flower is always equal.
- If the sepals of a flower are joined together, its petals are also joined together.
- If the petals of a flower are joined together, then the pistil is joined to the petal.
- Roots absorbs water and minerals from the soil.
- Stem holds the plant upright.
- Stem conducts water to the leaves.
- The number of petals and sepals in a flower may not be always equal.
- If the sepals of a flower are joined together, its petals are separate and not joined together.
- If the petals of a flower are joined together, then the pistil is not necessarily joined to the petal.
Draw (a), leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3?
Can you find a plant in your house or in your neighborhood, which has a long but a weak stem? Write its name. In which category would you classify it?
The plant found in our house is money plant which has a long but a weak stem. This plant needs support, these are called climbers.
What is the function of a stem in a plant?
Stems hold the plant upright. Stems also carries water from roots to leaves and flowers and supplies food from leaves to all parts of plant. Stems can be modified into leaf like structure as in causes to conserve water. Stem can be modified for storage of food.
Which of the following leaves have reticulate venation? Wheat, tulasi, maize, grass, coriander (dhania), China rose?
Tulasi, Coriander (dhania) and China rose.
It a plant has fibrous root, what type of veriation do its leaves likely to have?
If a plant has leaves with reticulate venation, what kind of roots will it have?
It is possible for you to recognize the leaves without seeing them? How?
Yes, we can recognize leaves by smelling or touching. For examples, leaves of maize, tulasi, dhania, podina, bananasjetc.
Write the names of the parts of a flower?
A flower has mainly four parts:
Which of the following plants have you seen? Of those that you have seen, which one have flowers? Grass, maize, wheat, chilli, tomato, tulasi, pipal,
shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut?
I have seen all these plants. Plants with flowers are chilli, tomato, tulsi, mango, jamun, guava, pomegranate, papaya, banana, lemon.
Name the part of the plant which produces its food? Name this process?
The leaves of plant produce food. The process is called photosynthesis.
In which part of a flower, you are likely to find the ovary?
The ovary is found in pistil part of a flower.
Name two flowers, each with joined and separated sepals?
The flowers with joined sepals are rose and sunflower. The flowers with separated sepals are China rose and mustard plant.
Projects and Activities
Name of plant parts are hidden in this grid. Search for them by going up, down, or even diagonally forward as well as backward. Have fun?
Make a table to show categories of some plants?
Categories of plants:
Show by an experiment that various kinds of plants have different kinds of stem?
Observe carefully the plant of wheat. Press the stem of it with fingers. Then repeat the procedure, for stem of rose, money plant, gourd and bitter gourd. The stem of wheat is green, tender and weak, this can be pressed easily with the fingers, where as the stem of rose is tough and more force is required to break or press it. The creeper of bitter gourd and money plant can not stand straight on its own.
After observing various kinds of stem, it is known to us that wheat stem is weak, rose stem is tough and bitter gourd stem can not stand by itself.
Getting to Know Plants Intex Questions
Paheli wonders what kind of stem the money plant, beanstalk, gourd plants and grape vines have. Do observe some of these plants. How are these different from a herb, a shrub or a tree? Why do you think some of them need support to climb upwards?
These are climbers.
Boojho has a brilliant idea If he wants to know what kind of roots a plant has, he need not pull it out. He just has to look at its leaves?
Getting to Know Plants Additional Important Questions
Getting to Know Plants Objective Type Questions
Choose the correct answer:
Which of the following is a modified root?
Which of the following is a modified stem?
(b) Sweet potato
Which of the following is a modified leaf?
(d) Spines in cactus.
(d) Spines in cactus.
Which of the following is a tap roots?
Which of the following has fibrous roots?
Which of the following has thick and wooden (hard) stem?
(b) Money plant
Fill in the blanks:
- Rose is a ……………………….. plant.
- In cactus leaves are modified into ………………………..
- Vegetables such as carrot, beetroot and radish that you eat are modified …………………………..
- Roots provide support to plants and also absorb and ………………………..
- Leaves are green because they have a pigment called ……………………………
- Plants synthesis food through the process of ………………………….
- Climbers have ………………………….. structure to climb up.
- The plants whose stem is soft and tender are called as …………………………
- The plants whose stem is hard but can be broken easily are called …………………………….
- The plants whose stem is thick and strong (wooden) are called ………………………………..
- The plants which have tendrils are called ………………………….
- The plants which grow and land horizontally are called ……………………………
- Water, mineral
Which of the following statements are true (T) or false (F):
- Roots absorb minerals and water from the soil.
- The wheat plant has fibrous root system.
- Supporting roots are found in all plants.
- The stems of all plants can stand erect.
- Plants can synthesise their food without carbon dioxide.
- Leaves can manufacture their food without sunlight.
- Food is stored only in fruits in plants.
Match the items in Column A with the Column B:
(i) – (e)
(ii) – (a)
(iii) – (b)
(iv) – (d)
(v) – (f)
(vi) – (c).
Find out odd one from the following:
- Mongra, butterfly, lily, rose
- Wheat, paddy, maize, peepal.
- Rose, cactus, sunflower, mehendi.
Getting to Know Plants Very Short Answer Type Questions
Sort out from the following plants which have fibrous roots: Tulsi, sugarcane, mango, ashok, onion, maize, garlic?
Tulasi, sugarcane, onion, maize and garlic.
Name the parts of plants?
The parts of the plants are root, stem, leaves, flower, fruits and seed.
Where does root system grow?
Root system grows under the ground.
What are the different types of root system?
The root system are of two types:
- Tap root system
- Fibrous root system.
What are the functions of roots?
- To fix the plant in the soil.
- Absorb water and minerals from soil.
Which is the smallest flower?
Wolffia. It is the microscopic in size.
Which is the largest flower?
Rofflosia. It is about 1 metre in size.
What is the function of flowers?
Flowers produce reproductive cells which take part in reproduction.
Give two examples of modified root?
Carrot and Radish which we eat are modified roots.
Give two examples of stems?
- Stem holds the plant upright.
- Stem carries water from roots to leaves and flowers and supplies food from leaves to all parts of plant.
What is bark?
Most of trunks are covered with outer layer called bark. It protects the inner parts of the tree.
Where can you see the largest plant of world?
Largest plant of world (General Sherman) is in United States of America in California.
Why are leaves green in colour?
Leaves are green in colour due to the presence of green pigment in it, called chlorophyll.
What name is given to the process of making food by leaves?
It is called photosynthesis.
What are the conditions necessary for green leaves to prepare food?
Green leaves make food with the help of carbon – dioxide and water in the presence of sunlight.
Give an example of each in which:
- Leave are modified as spines.
- Leaves are modified as tentricles.
- Cactus leaves are modified as spines.
- In sea plant – leaves are modified as tentricles.
Name two plants that have supporting roots?
- Banyan tree
- Maize plant
- Sugar cane.
What is the role of spines in cactus tree?
The spines protect the plants from animals, in cactus plant it reduces the loss of water, ft works as a defence device for the plant.
Give an example of a plant with stem tendrils?
The cucurbit (kakri/lauki) plant has tendrils which help the plant to climb and support the weight of the plant.
Name some modified stems and roots which you eat?
Modified stem: Onion, potato, ginger, garlic, colocassia. Modified root: Sugarbeet, sweet potato, turmeric, carrot, radish.
Why is stem of cactus thick and green?
Cactus plant has modified stem which conserves water in the green fleshy stem which is photosynthetic. Its stem is thick and green due to the
presence of chlorophyll in it. It helps in photosynthesis.
What are the special features of red wood tree?
It is largest tree. It is 80 metre high. It is about 30 metres at its base. It may live for 3500 years.
Which part of the flower becomes seed? Name the parts of a seed?
The ovules of the flower turn into seeds after fertilization of ovules. A seed consists of a seed coat. It has many other parts like cotyledons, radical and plumule.
What are nodes and internodes?
In some plants like bamboos and sugarcane their stems have some joints where leaves and branches arise. These joints are called nodes. The part of the stem between two nodes in called internode. The lengths of internodes vary from plant to plant.
What are additional functions for stems can be modified?
- Stems can be modified into leaf like structure as in causes to conserve water
- Stem can be modified for storage of food e.g. potato.
Getting to Know Plants Short Answer Types Questions
Write five examples of each food storing roots, fibrous roots and tap roots?
Food storing roots:
Turnip, carrot, radish, potato and onion.
Wheat, maize, tulasi, garlic and grass.
Mango, peepal, neem, pea and gram.
What is fruit? How does it differ from a seed?
After the pollination the ovary part of the flower converts itself into a fruit. Fruit is generally made up of fruit walls and the seed. The ovule of flower converts itself into seed. The seed after drying can be used to grow a new plant.
Differentiate between climber and creepers?
Differentiate between climbers and creepers.
- The stems of these plants are very weak and weak.
- They can not stand straight on land.
- Example: Bitter gourd, grape, Vine.
- Their stem is tender and weak.
- They can not stand by themselves.
- Example: Duphariya
Draw a labelled diagram of flowers?
Label these pictures?
Getting to Know Plants Long Answer Type Questions
Draw a labelled diagram of the tap root and the fibrous root?
Differentiate between root and stem?
Difference between Root and Stem:
- The part under the ground is called root system.
- There is no node and inter nodes.
- They also contain root cap.
- The portion of plant is called root system above the ground is called shoot system. In shoot system there is stem, branches, leaves, flowers, and fruits.
- They have node and nodes inter node.
- They do not contain root cap.
Draw a picture of a leaf and explain it?
The green structure growing on stem is called leaf. Take branch of hibiscus and to know the different parts of leaf, compare it with the picture given below. The green pigment called chlorophyll imparts green color on leaf. The chlorophyll helps in preparing food Lamina in presence of sunlight.
Leaf blade or lamina:
The flat green portion of leaf is called leaf blade or lamina.
The leaf blade is attached to the stem by short stalk is called petiole.
Petiole continues in the leaf as the midrib, it has a network of veins.
Differentiate between herbs, shrubs and trees?
Difference between Herbs, shrubs and trees:
Draw the diagram how to cut the ovary of a flower?
Take two ovaries from different flowers. Cut them in two different ways as shown in Figure. To prevent them from drying, put a drop of water on each of the two pieces of the ovary, you have cut.
Define ovules and draw a labelled diagram to show the inner structure of an ovary?
Observe the inner parts of the ovary using a lens as shown in figure. You see some small bead like structures inside the ovary. They are called ovules.