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Name the components of xylem and phloem?
Lysosomes are known as " suicidal bags " because of
(a) catalytic activity
(b) hydrolphytic activity
(c) parasitic activity
(d) saprophytic activity
why is spleen called the blood bank in our body?
What is the location of parenchyma, sclerenchyma, collenchyma in plant?
List any 6 differences between Xylem and Phloem???
Which two organelles of a cell contain their own genetic material ? What will happen if the organisation of a cell is destroyed due to some physical or chemical influence.
what would happen if a plant lacks of meristem tissue?
structure , function, location of parenchyma, collenchyma, sclerenchyma, xylm and phylomen tissue ???????
DRAW THE LABELLED DIAGRAM OF PARENCHYMA, COLLENCHYMA AND SCLEVENCHYMA. WRITE THE DIFFERENCE BETWEEN THEM?
Differentiate between Parenchyma and Sclerenchyma in a Tabular Form?
easy diagram of xylem and phloem
Explain the statement 'Tissues exhibit division of labour'.Give examples.
give difference between plant n animal tissues............
mind map of types of tissues
What will happen if Apical Meristem is damaged or cut?
why does the growth of plants occur in specific region?
why is blood considered a connective tissue?
what are the constituents of phloem ?
difference between Xylem and Phloem
State the characteristics of collenchyma tissue?
Intercellular spaces are absent in sclerenchymatous tissues. Give reason
what is the meaning of tangential walls?
Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.Give reason.
The only plant cells without nucleus among the following are:
(a) Cambium cells (b) Xylem vessel elements
(c) Root Hairs (d) Sieve tubes
expand DNA?in which part of a cell itis found.state it function.
Differentiate between striated, unstriated and cardiac muscles based on their structure (shape, nucleus, striations),location. Support your answer with diagrams
Explain the structure of neuron with the help of a labelled diagram
What are tissues ? Give importance of tissue
What is the difference between tendons and ligaments?
what are the difference between plant tissues and animal tissues?
Branches of a tree move and bend freely in high wind velocity. Why ??
Normally in the process of osmosis, the net flow of water molecules in or out of the cell depends upon difference in the
1. Concentration of water molecules inside and outside the cell
2. Concentration of enzymes on either side of the cell membrane
3. Rate of molecular motion on either side of the cell membrane
4. Rate of movement of insoluable molecules inside the cell
Pl. tell me which is correct option on the above with detail explanation
Water hyacinth floats on water surface. explain
give an example of protective tissue in plant?
please provide a labeled diagram of nerve cell ( specially " cyton " )
name the tissue which helps in transportation of oxygen that we inhale to various parts of our body.write the composition of this tissue.
Diffrentiate between sclerenchyma fibres and sclereids???
why do meristematic tissues lack vacuoles?
We get a crunchy and granular feeling when we chew pear fruit. Why ??
What is the difference between-
i.Tracheids and vessels
ii.Sieve plates and sieve tubes
what is sedentary existence and active locomotion
why does a desert plant have thick coating of cutin on the outer surface of epidermis?
Write a note on meristematic tissue? Draw diagram showing the location of various meristemsin a plant
three features of cardiac muscles.
What does "prominent nucleus" mean ?
Why is it difficult to pull out the husk (fiber like thing on its covering) of a coconut tree?
what is aerenchyma ? state its functions.
list two characteristics of cork cells which help them to function as protective tissue.
why blood is called fluid connective tissue?
TAKE 2 GLASS JARS AND FILL THEM WITH WATER. NOW TAKE TWO ONION BULBS AND PLACE ONE ON EACH JAR. OBSERVE THE GROWTH OF ROOTS IN BOTH THE BULBS FOR FEW DAYS. MEASURE THE LENGTHS OF ROOT ON DAY 1 , 2,AND3 . ON DAY 4 CUT THE ROOT TIPS OF THE THE ONION BULB IN JAR 2 BY 2 CM. AFTER THIS OBSERVE THE GROWTH OF BOTH.
1. WHICH OF THE 2 ONIONS HAVE LONGER ROOT, WHY ?
2. DO THE ROOTS CONTINUE GROWING EVEN AFTER WE HAVE REMOVED THE TIPS?
3.WHY WOULD THE TIPS STOP GROWING IN JAR 2 AFTER WE CUT THEM ?
what is vascular cambium and cork cambium?
difference between white and yellow fibres
difference between three types of muscles fibres.
explain the location,structure and function of meristematic tissue in plant body with a labelled diagram.
IS THE OUTER LAYER OF THE BRANCHES OF TREES DIFFERENT FROM THE OUTER LAYER OF A YOUNG STEM?
functions of chlorenchyma?
a) bone and cartilage
b)tracheids and vessels
c)tendon and ligament
d)axon and dendron....
what is the chemical present in cells of cork?
how is meristematic tissue classified on the basis of its location?
why are parenchyma tissues also known as plant packaging tissues?
Animals of colder regions and fishes of cold water have thick layer of subcutaneous fat.Explain why?
All living organisms are made up of millions of cells. These cells perform all the functions of the body—whether it is the beating of the heart or the movement of the hands. Let us find out how these cells perform so many different functions.
What can you conclude from the figures given above?
The given figures show that:cells having similar structures combine to perform the same function.This combination or cluster of cells is known as a tissue. For example, nerve cells combine to form the nervous tissue.
There arennumber of cells in multicellular organisms. These cellsmake up the tissues, which in turn combine to make up the different organs. The different organs form the different organ systems and these organ systems unite to form the organism.
Cells → Tissues → Organs → Organ systems → Organism/Individual
On the other hand, unicellular organisms have only a single cell. This sole cell performs all cellular functions. For example,Amoeba. So, division of labour is a feature of multicellular organisms rather than of unicellular organisms. The tissues present in one organism are different from the tissues present in another. For example, the tissues present in animals are broadly classified asepithelial, connective, muscularandnervous tissues. In contrast, the tissues present in plants are broadly classified asmeristematicandpermanent.
Meristematic tissue, also known asmeristem, is composed of immature and continuously dividing cells. In plants, the shoot and root tips are made up of meristematic tissues.
Let us observe meristematic tissues.
Characteristics of meristematic tissues:
Apical meristems: They are present at the tips of stems, roots and branches. They are responsible for the axial growth in a plant.
Intercalary meristems: They are present at the base of the internodes. They are responsible for the growth of the internodal region.
Lateral meristems: They are present on the lateral side of stems and roots. They are responsible for the radial growth of plants.Vascular cambiumandcork cambiumare examples of lateral meristem.
Example2:Why are meristematic cells referred to as undifferentiated cells?
Solution:Meristematic cells are undifferentiated cells because they are in a dividing state and their nature of work has not been decided. When cells perform a particular function, they are said to be differentiated.
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PLEASE PROVIDE A TABLE OF DIFFERENCES BETWEEN PARENCHYMA, SCLERENCHYMA AND COLLENCHYMA.
flowchart about diffrent types of tissues
difference between epidermis and cork
what is animal tissue and its all parts?explain
the simple permanent tissue are divided into 3 types of tissue PARENCHYMA , COLLENCHYMA and SCELENCHYMA .. what are the differences between theM?>
grits of pear is formed of--------- . find -----------
what are the functions of bone, cartilage, ligament and tendon
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