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Questions and Answers
What is the main aim of the activity of identifying tissue in a collected sample?
What is the main aim of the activity of identifying tissue in a collected sample?
- To study the structure of chicken bones
- To observe the movement of tissues under a microscope
- To identify the different types of tissues in animals (correct)
- To compare the tissues of plants and animals
What is the function of some tissues in animals?
What is the function of some tissues in animals?
- To regulate body temperature
- To carry out photosynthesis
- To produce hormones
- To make connections between muscles and bones (correct)
What is the purpose of using dilute HCl in the activity?
What is the purpose of using dilute HCl in the activity?
- To stain the tissue for better observation
- To remove impurities from the tissue sample
- To break down the tissue for easier observation (correct)
- To preserve the tissue sample
What is the significance of observing the tissue under a microscope?
What is the significance of observing the tissue under a microscope?
What is the role of forceps or brush in the activity?
What is the role of forceps or brush in the activity?
What is the purpose of drawing the diagram of the observed tissue?
What is the purpose of drawing the diagram of the observed tissue?
What can be concluded about the cells in the blood sample?
What can be concluded about the cells in the blood sample?
What is the similarity between plant and animal tissues?
What is the similarity between plant and animal tissues?
What is the purpose of adding diluted HCl or vinegar to the muscle tissue in Procedure 3?
What is the purpose of adding diluted HCl or vinegar to the muscle tissue in Procedure 3?
What is the function of epithelial tissue in the body?
What is the function of epithelial tissue in the body?
Why do the cells in epithelial tissue appear as a continuous sheath?
Why do the cells in epithelial tissue appear as a continuous sheath?
What is the difference between skin cells and muscle cells?
What is the difference between skin cells and muscle cells?
What is the purpose of collecting a drop of blood from the finger tip in Procedure 2?
What is the purpose of collecting a drop of blood from the finger tip in Procedure 2?
Why is it necessary to observe the blood slide carefully and not be in a hurry?
Why is it necessary to observe the blood slide carefully and not be in a hurry?
What is the significance of comparing the diagram of blood tissue with Fig-2?
What is the significance of comparing the diagram of blood tissue with Fig-2?
Why is it necessary to sterilize the syringe needle in Procedure 2?
Why is it necessary to sterilize the syringe needle in Procedure 2?
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Study Notes
Animal Tissues
- Animal tissues are similar to plant tissues, with different types of tissues performing different functions.
- There are different kinds of tissues in animals to perform different functions, such as:
- Covering and protecting the body
- Helping in movement (performed by muscles and bones)
- Making connections between tissues
- Carrying information (responses)
Organ Systems
- Different organ systems work together to carry out different functions, including: (No answers provided, but examples of organ systems include nervous, circulatory, respiratory, etc.)
Tissue Identification
- To identify tissues, a microscope and specific procedures are necessary.
- Procedures for observing epithelial tissue, blood, and muscle tissue are described, including the use of dilute HCl, forceps, and a microscope.
Epithelial Tissue
- Epithelial tissue is present in the skin, lining of mouth, lining of blood vessels, lung alveoli, and kidney tubules.
- The name "epithelial" comes from the Greek words "epi" meaning "outer" and "thelium" meaning "tissue".
- Epithelial tissue cells are arranged in a continuous sheath, with no intercellular space.
- This tissue provides protection to the inside and outside of the animal body.
Blood Tissue
- Blood is a type of tissue that is composed of different cells and a fluid-like substance.
- Blood cells are not all the same and are arranged in a specific way.
Muscle Tissue
- Muscle tissue is composed of cells that are arranged in a specific way, with differences between skin cells and muscle cells.
- Muscle tissue helps in movement.
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