Levels of Biological Organisation Practice Quiz (8 questions)

Explanation

An organelle, or subcellular structure, is a part of a cell with a specific role. A specialized cell is a whole cell, a tissue is a group of cells, and an organ system is a group of organs.

Explanation

Multiple organelles combine to form a single cell. A tissue is made of similar cells, while an organ and an organ system are higher levels of organization.

Explanation

A tissue is a group of similar cells working together to carry out a particular function. An organ is made of different tissues, a specialized cell is one cell, and an organ system is a group of organs.

Explanation

Glandular tissue makes and secretes chemicals such as enzymes and hormones. Epithelial tissue covers surfaces, while muscle tissue contracts and relaxes to move body parts.

Explanation

An organ consists of different tissues that work together to carry out a particular function. A group of similar cells working together describes a tissue, not an organ.

Explanation

The material estimates that there are about 12 different organ systems. The figure of about 4 confuses the number of organ systems with the small set of examples emphasized in the discussion.

Explanation

A specialized cell is characterized by a particular combination and number of organelles, which distinguishes its cell type. Grouping similar cells into a tissue describes a higher level of organization, not the role of organelles within a cell.

Explanation

Glandular tissue produces and secretes chemicals such as enzymes and hormones, whereas muscle tissue contracts and relaxes to move parts of the body. Covering surfaces is a function of epithelial tissue, not glandular tissue.