G. Give reasons for the following:
1. Permanent tissues do not divide.
2. Chlorenchyma cells can make food.
3. Bones are hard and strong.
4. Blood is a fluid connective tissue.
5. Cardiac muscles work tirelessly.
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Answers
Explanation:
Its main function is to provide flexibility to the plants as well as mechanical support. Sclerenchyma – The cells of the sclerenchyma tissue are dead. The cell wall is very thick due to the deposition of lignin. The cells of this tissue can be in different shapes and sizes.
1. Explanation:This is because when they get dead they loose their capability to divide.
Answer:
1.The cells of permanent tissues do not divide. Cells derived from divisition of meristematic to see take up specific role and lose the ability to divide. The cells in the parenchyma tissues may be living or dead.
2.In leaves, they form two layers of mesophyll cells immediately beneath the epidermis of the leaf, that are responsible for photosynthesis and the exchange of gases. These layers are called the palisade parenchyma and spongy mesophyll. ... Chlorenchyma cells carry out photosynthesis and manufacture food.
3.Bones are made up of a framework of a protein called collagen, with a mineral called calcium phosphate that makes the framework hard and strong. Bones store calcium and release some into the bloodstream when it's needed by other parts of the body.
4.Blood is a fluid connective tissue, a variety of specialized cells that circulate in a watery fluid containing salts, nutrients, and dissolved proteins in a liquid extracellular matrix. Blood contains formed elements derived from bone marrow.
5.types of muscle tissue in your body. The other two types are skeletal muscle tissue and smooth muscle tissue. Cardiac muscle tissue is only found in your heart, where it performs coordinated contractions that allow your heart to pump blood through your circulatory system.
Explanation:
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