Friday, 21 October 2016

Tissue in Heart etc. Group II Exam Quiz: Meelo Evaru Koteeswrudu Champion etc.

Question – 1 - What is a tissue?
Answer: A group of cells which is meant to serve a special function is called tissue.
Question – 2 - What is the utility of tissues in multicellular organisms?
Answer: Tissues facilitate division of labour. Different tissues are responsible for different functions, which is important for the functioning of a multicellular organism.
Question – 3 - Name types of simple tissues.
Answer: Simple tissues are as follows:
  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
Question – 4 - Where is apical meristem found?
Answer: Apical meristem is found at root apex, shoot apex, leaf buds, etc.
Question – 5 - Which tissue makes up the husk of coconut?
Answer: Sclerenchyma
Question – 6 - What are the constituents of phloem?
Answer: Phloem is composed of sieve tubes, companion cells, phloem fibres and phloem parenchyma.
Question – 7 - Name the tissue responsible for movement in our body.
Answer: Muscular tissue
Question – 8 - What does a neuron look like?
Answer: Neuron looks like a star-shaped cell with a tail.
Question – 9 - Give three features of cardiac muscle.
Answer: Three features of cardiac muscle are as follows:
  1. Cells are branched fibres.
  2. Striations are present on cells.
  3. Cells are capable of continuous contraction and relaxation.

Question – 10 - Name the following.
  1. Tissue that forms the inner lining of our mouth.
Answer: Simple epithelium
  1. Tissue that connects muscle to bone in humans.
Answer: Tendon
  1. Tissue that transports food in plants.
Answer: Phloem
  1. Tissue that stores fat in our body.
Answer: Adipose tissue
  1. Connective tissue with a fluid matrix.
Answer: Blood
  1. Tissue present in the brain.    Answer: Nervous tissue
Answer: Nervous tissue
Question – 11 - Identify the type of tissue in the following: skin, bark of tree, bone, lining of kidney tubule, vascular bundle.
Answer: Skin: Epithelium, Bark of tree: Epidermis, Bone: Connective tissue, Lining of kidney tubule: Cuboidal Epithelium, Vascular bundle: Complex plant tissue
Question – 12 - Name the regions in which parenchyma tissue is present.
Answer: Parenchyma is present in mesophyll of leaves, fruits, flowers and young stem.
Question – 13 - What is the role of epidermis in plants?
Answer: Epidermis in plants provides protective covering to the underlying tissues. In xerophytes, epidermis has a waxy coating which prevents water loss.
Question – 14 - How does the cork act as a protective tissue?
Answer: Cork forms an impervious layer over underlying tissues. Cork prevents entry of water to the underlying tissue

Question – 15 - What is the specific function of the cardiac muscle?
Answer: Cardiac muscles facilitate contraction and relaxation of heart; which results in pumping action of the heart.





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