Jump to
- Nutrition in Plants
- Nutrition in Animals
- Fibre to Fabric
- Heat
- Acids, Bases and Salts
- Physical and Chemical Changes
- Weather, Climate and Adaptations of Animals of Climate
- Winds, Storms and Cyclones
- Soil
- Respiration in Organisms
- Transportation in Animals and Plants
- Reproduction in Plants
- Motion and Time
- Electric Current and its Effects
- Light
- Water: A Precious Resource
- Forests: Our Lifeline
- Wastewater Story
NCERT Exemplar Solutions Class 7 Science Solutions for Transportation in Animals and Plants - Exercise in Chapter 11 - Transportation in Animals and Plants
Prev
They are pipe-like, consisting of a group of specialized cells. They transport substances and form two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
(a) Xylem tissue
(b) Vascular tissue
(c) Root hairs
(d) Phloem tissue
Answer:
The answer is (d) Phloem tissue
Explanation:
Phloem tissue consists of a group of specialized cells. Sieve tubes are elongated tubular conducting channels of phloem through which food is transported. The contents of phloem can move in the upward as well as in the downward direction. Therefore, they form two-way traffic in plants.
Video transcript
"hello guys welcome back to the homework
i am levant kumar working as a tutor
that will do
so today we are going to solve and
explore one interesting problem so let's
see what is that here
subtract 2a minus 5b
plus 2c minus 9 from 3 a minus 4
b minus c plus 6 it will be very very
very easy so let's see how we can do
that okay so from
3 a minus 4 b minus c
plus 6 we need to subtract what
minus of 2a minus
5b plus 2c minus
9 okay so how we can do that let's see
now okay
so now observe properly let's write all
the like terms aside
so now it will be off so 3a
and here it will be 3a minus 4b
minus here observe properly
so minus 4b minus c plus 6
and here minus 2a and now observe
properly minus
multiplied by minus okay so minus
multiplied by minus is equals to plus
according to the rules of multiplication
so minus multiplied by minus plus okay
so now plus 5b
and here minus multiplied by place so
minus multiplied by plus is equals to
minus itself
okay so minus itself here so this place
will be becoming
as minus 2 c i need the same thing minus
multiplied by minus is equals to plus
so plus 9 okay so now just write
all the like terms aside okay so now 3a
minus 2a this it at one place
and now minus 4b and here plus 5b
at one place and then minus c
and then minus 2c at one place and then
plus 6 plus 9
at one place okay so now 3 a minus 2 a a
and then minus 4 b plus 5 b so plus b
only because here it is greater than 5
minus 4
plus 1 you know plus 1 only know and
then minus c minus
2 c minus 3 c and then plus 15
so this is our final answer completed so
the final answer
we got here it has a plus b
minus 3 c plus 15 is our final answer
okay
so i hope you have understood each and
everything like what i've done here
if you have any doubts please comment
below don't forget to subscribe to this
channel
thank you so much for watching this stay
tuned thank you
"
Related Questions
Facebook
Whatsapp
Copy Link
Chapters
Lido
Courses
Quick Links
Terms & Policies
Terms & Policies
Connect with us on social media!
2022 © Quality Tutorials Pvt Ltd All rights reserved