Test Your Knowledge On This Tissues Quiz

The presence of tissues in a multicellular organism ensures division of labor. This means that different types of tissues have different functions and work together to perform specific tasks in the body. This specialization allows for more efficient and effective functioning of the organism as a whole. Each tissue type is specialized to perform a particular function, such as muscle tissue for movement or nerve tissue for communication. This division of labor allows for the coordination and cooperation of different tissues to maintain the overall functioning and homeostasis of the organism.

Xylem is composed of four different types of cells: tracheids, vessels, xylem parenchyma, and fibers. Sieve tubes, on the other hand, are a type of cell found in phloem tissues, not xylem tissues. Phloem is another specialized tissue in plants that transports sugars and other organic compounds from the leaves to the rest of the plant.

The correct labeling for the parts A, B, C, D, and E in the diagram is A – Nucleus; B – Dendrite; C – Cell body; D – Axon; E – Nerve ending. The nucleus is the control center of the cell and contains genetic material. The dendrite receives signals from other neurons and transmits them to the cell body. The cell body contains the nucleus and other cell organelles. The axon is a long fiber that carries signals away from the cell body. The nerve ending is the terminal part of the axon that transmits signals to other cells.

Lysosomes contain enzymes that break down biological polymers, including the components of the cell itself. This process is known as autophagy, where lysosomes digest and recycle cellular components. Therefore, the statement "Its enzymes digest the cell itself" is a correct explanation for why lysosomes are referred to as the "suicide bag of the cell."

The correct answer is "It is made up of cells that are capable of cell division." Meristematic tissues are responsible for the growth of plants by continuously dividing and producing new cells. These cells have the ability to divide and differentiate into various specialized cell types, allowing for the increase in length and girth of the plant.

Cardiac muscles are striated, meaning they have a striped appearance due to the arrangement of contractile proteins. They are also uninucleated, meaning they have a single nucleus per cell, unlike skeletal muscles which are multinucleated. Additionally, cardiac muscles are branched, allowing for better coordination and communication between cells. Therefore, the statement that cardiac muscles are non-striated, multinucleated, and branched is not related to cardiac muscles.

The possible reason for the dislocation of the two long bones in the person's hand could be a ligament break. Ligaments are tough, fibrous tissues that connect bones to other bones, providing stability and allowing for proper movement. If a ligament is torn or ruptured, it can result in the dislocation of bones, causing them to move out of their normal position.

Connective tissues are characterized by widely spaced cells embedded in a matrix. Ligaments, tendons, and blood all fit this description. Ligaments connect bones to other bones, tendons connect muscles to bones, and blood is a connective tissue that transports nutrients, oxygen, and waste products throughout the body. Epithelium, on the other hand, is a tissue that covers the surfaces of organs and lines body cavities, and does not fit the description of connective tissue. Therefore, the connective tissues among the options are (i), (iii), and (iv).

Apical and intercalary meristems are not permanent tissues. Meristematic tissues are responsible for growth and development in plants and they differentiate into various types of permanent tissues. Apical meristems are found at the tips of roots and shoots, while intercalary meristems are found in the internodes of grasses. These meristems are responsible for primary growth and increase in length of the plant. Therefore, the statement "Apical and intercalary meristems are permanent tissues" is incorrect.

Epithelial tissue is a type of tissue that lines the outer and inner surfaces of organs and structures in the body. It always has an exposed outer surface and an inner surface anchored to connective tissue. The structure that anchors the inner surface of epithelial tissue to connective tissue is called the basement membrane. The basement membrane is a thin, non-cellular structure that provides support and acts as a barrier between the epithelial tissue and the underlying connective tissue. It helps to maintain the integrity and function of the epithelial tissue.

The correct answer is the option where the student named all four parts correctly. In this case, the student who named the parts as A – Intercalated disc; B – Branched fibres; C – Sarcoplasm; D – Nucleus is the one who named all four parts correctly.

Skeletal muscles are responsible for voluntary movements in the body, such as running and doing work. These muscles contract and pull on tendons, which are tough connective tissues that attach muscles to bones. When the tendons are pulled, they cause the bones to move, allowing for the desired action to be performed. Therefore, the correct answer is "Skeletal muscles contract and pull the tendon to move the bones."

Simple epithelium is composed of cells that are cemented directly to one another to form an irregular layer. This type of tissue forms the outer protective layer of the skin in the animal body. The cells in simple epithelium are tightly packed and connected by specialized junctions, such as tight junctions and desmosomes, which provide strength and support to the tissue. This arrangement allows for a barrier function, protecting underlying tissues and organs from mechanical damage, pathogens, and dehydration.

Stomata are not directly involved in the process of photosynthesis. Photosynthesis occurs in the chloroplasts of plant cells, specifically in the mesophyll cells of leaves. Stomata primarily function in the exchange of gases, particularly carbon dioxide and oxygen, with the atmosphere. They also play a role in regulating water loss through transpiration and help create pressure for water to rise upward through capillary action. However, the actual process of photosynthesis, which involves the conversion of light energy into chemical energy, occurs within the chloroplasts and does not directly involve stomata.

The correct answer is intercalary meristem. Intercalary meristem is a type of meristem found in the nodes of plants, such as sugarcane. It is responsible for the continuous growth of the plant in length even if the tip is removed. Intercalary meristem allows for the elongation of the stem by continuously producing new cells. This allows the plant to keep growing even after the removal of the tip.