Q1. what type of muscles is heart composed of?
Q2. what are the function of unstriated muscles?
Q3. name the branches fibres, which is multinucleated and non-influenced By will?
Q4. how many types of muscles are there? What are they?
Q5. what is the main function of nervous tissue?
Q6. which tissue can be used for making ropes and textiles fibres?
Q7. where this parenchyma found in plant body?
Q8. the seed coat of almond and apricot very hard. which type of tissue make it hard?
Q9. name two groups of permanent tissue?
Q10. sclerenchyma cells a dead cell. Even then are important for the plant. Why?
Answers
Answer:
1)Cardiac muscle
Explanation:
Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscles, with the other two being skeletal and smooth muscles. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.
2)Its main function is muscle contraction and relaxation. Functions: Striated muscle helps in the body movement and also maintains body posture.
3) -
4) There are three types of muscle, skeletal or striated, cardiac, and smooth. Muscle action can be classified as being either voluntary or involuntary. Cardiac and smooth muscles contract without conscious thought and are termed involuntary, whereas the skeletal muscles contract upon command.
5) Nervous tissue is composed of three main parts: nerves, the spinal cord and the brain. The primary function of nervous tissue is to receive stimuli and send the impulse to the spinal cord and brain. The brain sends back a response to the muscles via the nerves.
6)Bast fibre /Phloem fibre
Bast fibre (Phloem fibre) is the jute fibre used for making the ropes.
7)A generalized plant cell type, parenchyma cells are alive at maturity. They function in storage, photosynthesis, and as the bulk of ground and vascular tissues. Palisade parenchyma cells are elogated cells located in many leaves just below the epidermal tissue
8)Scalerenchyma
9)Simple permanent tissues are again classified into three main types. They are parenchyma, collenchyma, and sclerenchyma. Parenchyma – The cells of this tissue are living, with thin cell walls.
10)The protoplast usually dies during development so that the typical sclerenchyma cell is dead at maturity. The lignified wall gives sclerenchyma cells their rigidity, and they function primarily in mechanical support and water conduction