1.
Which tissue type of the body is mostly matrix?
Correct Answer
B. Connective tissue
Explanation
Connective tissue is mostly matrix because it is composed of a large amount of extracellular matrix, which is a non-living substance that surrounds and supports the cells. This matrix consists of fibers, such as collagen and elastin, embedded in a ground substance that can be solid, gel-like, or fluid. Connective tissue provides structural support, connects and protects organs, and helps with tissue repair. Examples of connective tissue include bone, cartilage, blood, and adipose tissue.
2.
What are two main types of cell found in nervous tissues and what are their functions?
3.
Name the four main tissue types.
4.
Allows body movement
Correct Answer
B. Muscle
Explanation
Muscle tissue is the correct answer because it allows body movement. Muscle tissue is responsible for the contraction and relaxation of muscles, which enables movement in the body. It is made up of specialized cells that are capable of generating force and producing movement. Other tissues listed, such as nervous tissue, connective tissue, and epithelium, do not have the primary function of allowing body movement.
5.
Transmits electrical impulses
Correct Answer
B. Nervous
Explanation
The correct answer is "nervous" because the nervous system is responsible for transmitting electrical impulses throughout the body. This system consists of the brain, spinal cord, and nerves, which work together to send signals that control various bodily functions and allow for communication between different parts of the body. The nervous system is essential for coordinating movement, processing sensory information, and regulating bodily processes.
6.
Secretes substances
Correct Answer
A. Epithelium
Explanation
Epithelium is a type of tissue that lines the surfaces of organs, blood vessels, and body cavities. It is responsible for secreting substances such as mucus, enzymes, and hormones. This secretion function is essential for various physiological processes, including protection, absorption, and lubrication. Epithelial cells are tightly packed together, forming a barrier that separates different body compartments and regulates the exchange of substances. Therefore, the statement "secretes substances" accurately describes the function of epithelium.
7.
Has a large amount of non-living matrix
Correct Answer
B. Connective
Explanation
Connective tissue is characterized by having a large amount of non-living matrix. This matrix is composed of various substances, such as fibers and ground substance, that surround and support the cells within the tissue. Connective tissue is found throughout the body and performs various functions, including providing structural support, connecting and binding tissues and organs together, and aiding in the transport of nutrients and waste products. Examples of connective tissue include tendons, ligaments, cartilage, and bone.
8.
Which of the following tissues forms hormones?
Correct Answer
A. Epithelium
Explanation
Hormones are produced by endocrine glands, which are derived from epithelial tissue. However, epithelial tissue itself doesn't form hormones. Epithelial tissue forms linings and coverings (like skin), nervous tissue transmits signals, and connective tissue supports and connects different body parts. Endocrine glands are specialized organs that secrete hormones directly into the bloodstream.
9.
Allows you to smile and walk
Correct Answer
B. Muscle
Explanation
The given answer "muscle" is the correct answer because muscles are responsible for allowing us to smile and walk. Muscles are the connective tissues in our body that enable movement by contracting and relaxing. They are attached to bones and joints, allowing us to perform various physical activities such as smiling and walking. Muscles also play a crucial role in maintaining posture and stability.