Students can Download Chapter 7 Getting to Know Plants Questions and Answers, Notes Pdf, KSEEB Solutions for Class 6 Science, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations.
Karnataka State Syllabus Class 6 Science Chapter 7 Getting to Know Plants
Class 6 Science Getting to Know Plants NCERT Textbook Questions and Answers
Question 1.
Correct the following statement and rewrite them in your notebook.
a. Stem absorb water and minerals from the soil
Answer:
Roots absorb water and minerals from the soil
b. Leaves hold the plant upright
Answer:
Roots hold the plant upright.
c. Roots conduct water to the leaves.
Answer:
Stem conduct water to the leaves
d. The number of petals and sepals in a flower is always equal.
Answer:
The number of petals and sepals in a flower is usually equal.
e. If the sepal of a flower are joined together, its petals are also joined together
Answer:
If the sepal of a flower are joined together its petals are not necessarily joined together
f. If the petals of a flower are joined together, then the pistil is joined to the petal
Answer:
If the petals of a flower are joined together them the pistil is not necessarily joined to the petal.
Question 2.
Draw
(a) A leaf
(b) A taproot and
(c) A flower you have studied
Answer:
Question 3.
Can you find a plant in your house or in yours neighborhood, which has a long but a weak stem?Write its name. In which category would you classify it?
Answer:
It is a money plant. It is a climber
Question 4.
What is the function of a stem in a plants?
Answer:
- In order to get maximum sunlight, stem and its branches hold the leaves.
- Stems transfer water from roots to various parts of the plants.
- It transports food from leaves to various parts
- It bears leaves, flowers and fruits.
Question 5.
Which of the following leaves have reticular venation? Wheat, tulasi, maize, grass, coriander, China rose.
Answer:
Tulasi, and China rose.
Question 6.
If a plant has fibrous roots, What type of venation do its leaves likely to have?
Answer:
It has parallel venation
Question 7.
If a plant has leaves with reticular venation, what kind of roots will it have
Answer:
It has tap root
Question 8.
Is it possible for you to find out whether a plant has taproot or fibrous roots by looking at the impression of its leaf on a sheet of paper?
Answer:
We cannot exactly recognise the leaves without seeing them. We may be able to have some idea by touching and smelling them.
Question 9.
Write the names of the parts of a flower
Answer:
The names of various parts of a flower from outside to inside are:
- Sepals
- Petals
- Stamens
- Pistil
Question 10.
Which of the following plants have you seen? Of those that you have, which one have flowers?
Answer:
Grass, maize, wheat, chill, tomato, tulasi, pipal, shisham, banyan, mango, jamun, guava, pomegrenate, papaya, banana, lemon, sugarcane, potato, groundnut
Question 11.
Name the part of the plant which produces its food. Name this process.
Answer:
Leaves produces the food of the plant, the process of making food in the presence of sunlight is called photosynthesis
Question 12.
In which part of a flower you are likely to find the ovary?
Answer:
Ovary is present in the pistil of the flower
Question 13.
Name two flower, each with joined and separated sepals.
Two flower with joined sepals: China rose and cotton.
Two flower with separated sepals: Rose and jasmine.
Class 6 Science Getting to Know Plants Additional Important Questions and Answers
I. Choose the correct answer:
Question 1.
Small plants, soft perishable stems, attain height upto five feet, generally annuals and biennials These plants are ___
a. Herbs
b. Shrubs
c. Trees
d. None of these
Answer:
a. Herbs
Question 2.
Woody perennials, attain height between 3 m to 5 m bushy appearance, produced branched stems from the ground. These plants are ___
a. Herbs
b. Shrubs
c. Trees
d. None of these
Answer:
b. Shrubs
Question 3.
Woody perennial single main stem called trunk which gives out number of branches These plants are ____
a. Herbs
b. Shrubs
c. Trees
d. None of these
Answer:
c. Trees
Question 4.
Tomato Plant is
a. Herb
b. Shrub
c. Tree
d. None of these
Answer:
a. Herb
Question 5.
Mango plant is a
a. Herb
b. Shrub
c. Tree
d. None of these
Answer:
c. Tree
Question 6.
emon plant is a ___
a. Herbs
b. Shrubs
c. Trees
d. None of these
Answer:
b. Shrubs
Question 7.
Part of the plant which conducts water to all parts of the plant is called as ____
a. Leaf
b. Root
c. Flower
d. Stem
Answer:
d. Stem
Question 8.
The part of a leaf by which it is attached to the stem is called ___
a. Petiole
b. Lamina
c. Midrib
d. Node.
Answer:
a. Petiole
Question 9.
Part of a plant which is the main site for photosynthesis is
a. Flower
b. Leaf
c. Stem
d. Root
Answer:
b. Leaf
Question 10.
Which one of the following is not the function of leaf normally
a. Photosynthesis
b. Transpiration
c. Respiration
d. Transportation
Answer:
d. Transportation
II. Give the technical terms of the following:
1. The part of a leaf by which it is attaches to the stem Petiole.
2. Small leaf like structure that protect flower in bud stage Sepal.
3. Plant with weak stem that cannot stand upright but spread Creepers on the ground.
4. Arrangement of veins on lamina or leaf blade Venation
5. Process to give out water vapour by the leaves Transpiration
III. Answer the following:
Question 1.
What are the major parts of plants?
Answer:
Stem, root, leaves and flower
Question 2.
Name two plants that belong to herbs?
Answer:
Tomato and potato
Question 3.
Define petiole?
Answer:
The part ( Stalk) of a leaf by which it is attached to the stem is called petiole
Question 4.
What are veins?
Answer:
The lines on the leaf are called veins
Question 5.
What is midrib?
Answer:
A thick vein in the middle of the leaf is called midrib.
Question 6.
What is leaf venation ?
Answer:
The design made by veins in a leaf is called leaf venation
Question 7.
What is transpiration?
Answer:
The process by which water comes out from the leaves in the form of vapour is called transportation
Question 8.
What are the raw materials for photosynthesis?
Answer:
- Sunlight
- Water
- Carbondioxide
- Chlorophyll
Question 9.
Name two plants which have tap root.
Answer:
Gram and mustard.
Question 10.
What are lateral roots?
Answer:
The smaller root that grow on the main tap root are called lateral roots.
Question 11.
What are ovules?
Answer:
These are small bead like structures inside the ovary is called ovules
Question 12.
What are weeds?
Answer:
The unwanted plant that grow in the fields with the main crops or in their surroundings are called weeds. weeds are the plants which are not grown by the farmers. For ex: Grass
Question 13.
What are creepers? write an example.
Answer:
The plants with weak stem that cannot stand upright and spread on the ground are called creepers. Various types of grasses are the examples of creepers.
Question 14.
Why do we see dew droplets on leaves in the early morning?
Answer:
At night the water lost by leaves does not get evaporated and gets collected on the leaves in the form of dew drops.
Question 15.
Explain the activity to show that stem conduct water and other substances.
Answer:
Take some water in a glass, Add few drops of red ink to the water cut the stem of a herb plant from its base. Put it in the glass as shown in figure.
We wall see that some parts of the stem becomes red. This activity shows that stem conducts water.
Question 16.
What are unisexual and bisexual flowers?
Answer:
Unisexual flower has either male (stamen) or female (pistil) parts. Bisexual flower have both male & female whorl in the flower i.e, they have both stamen and pistil.
Question 17.
Why does white flower bloom at night?
Answer:
White colour attracts night insects for pollination
Question 18.
Leaves need oxygen and carbondioxide How do they get these gases?
Answer:
Leaves take in these gases from atmosphere through small pores present on them called stomata.
Question 19.
Explain the structure of a typical flower with the help of a diagram?
Answer:
A typical flower contains the following parts:
- Stalk: The part by which a flower is attached to the branch is called stalk
- Sepals: The small green leaf like structure of the flower are called sepals
- Petals:The big coloured leaf- like structure are called petals. Different flower have petals of different colours.
- Stamen: It is the male part of the flower It has two parts
- Filament &
- Anther
- Pistil: The inner most part of a flower is called pistil. It has three parts
- Stigma
- Style and
- Ovary It is the female part of the flower.
Question 20.
Explain the important function of root?
Answer:
The following are the function of root
- They help to absorb water from the soil.
- The roots help in holding the plants firmly in the soil.
- They are said to anchor the plant to the soil.