1) What is histology?
2) Basis of classification of animal tissue?
3) Name the Parenchyma with chlorophyll which performs photosynthesis?
4) Distinguish between ligament and tendon?
5) Write short notes on Cardiac muscles?
6) What is the role of epidermis in plants?
7) How does the cork acts as a protective tissue?
8) Which tissue protects the entire body?
9) What is a synapse?
10) What will happen if apical meristem is damaged?
11) Function of guard cell and epidermal tissue
12) What are the functions of cuticle and stomata?
13) What is the differentiation?
14) Function of xylem and cork or phloem tissue
15) Examples of permanent and simple tissue
16) Differentiate between striated, unstriated and cardiac muscles on the basis of
in the body
Answers
Answer:
5. Cardiac muscles is an involuntary, striated muscle that is found in the walls and histological foundation of the heart, specifically the myocardium. Cardiac muscle is one of three major types of muscle, the others being skeletal and smooth muscle.
15. 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. Cells can be oval or round in shape.
1. Histology is the scientific study of biological tissues. Histology is the microscopic study of the structure of biological tissues using special staining techniques combined with light and electron microscopy. Histology is the study of the microscopic structures of cells and tissues of plants and animals.
6. It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients.
7. The secondary meristem forms on its outer side several layered thick cork or the barks of the trees. Cork act as a protective tissue because (i) Its cells are dead and compactly arranged without intercellular spaces. (ii) They also have deposition of suberin on the walls that makes them impervious to gases and water.
8.Epithelial tissue helps to protect organs from microorganisms, injury, and fluid loss. Functions of epithelial tissue: The cells of the body's surface form the outer layer of skin. Inside the body, epithelial cells form the lining of the mouth and alimentary canal and protect these organs.
9. A junction between two nerve cells, consisting of a minute gap across which impulses pass by diffusion of a neurotransmitter.
11. Function. Guard Cell: A pair of guard cells form a stoma, which is involved in the gas exchange of plants with the near atmosphere. Epidermal Cell: Epidermal cells provide a protection to the plant from the external environment.
12. Yucca opens its stomata at night to receive carbon dioxide for photosynthesis and it closes its stomata during the day to reduce water loss through transpiration. The cuticle helps seal in the water, making the leaves virtually waterproof.
14. Xylem transports water and soluble mineral nutrients from roots to various parts of the plant. It is responsible for replacing water lost through transpiration and photosynthesis. Phloem translocates sugars made by photosynthetic areas of plants to storage organs like roots, tubers or bulbs.
16. Differences between striated, unstriated and cardiac muscles. Each muscle is long, cylindrical, non-tapering and multi-nucleate. ... The fibres have centrally located one or two nuclei and transverse striations with light and dark bands. They are branched.
Explanation: