Cell Structure and Function Quiz

The nuclear membrane, a double layer of plasma membrane, and nuclear pores control the passage of material, particularly RNA, in and out of the nucleus.

Mitochondria and chloroplasts have their own DNA and are double-membraned organelles, unlike other organelles.

Place the plant cell on a slide with water, cover with a coverslip gently to avoid air bubbles, stain with iodine solution, and focus under low and high power on the microscope stage.

The cell membrane, composed of phospholipids and proteins, controls the passage of chemicals in and out of the cell, acting as a selectively permeable boundary.

The nucleus, surrounded by a double membrane, contains chromosomes (DNA and proteins) and controls all cellular activities. The nucleolus, located within the nucleus, is involved in manufacturing RNA.

Plant cells have a cell wall composed of cellulose fibers, while animal cells lack a cell wall and have only a cell membrane.

Ribosomes are organelles composed of RNA and proteins that synthesize proteins. They can be found in the cytoplasm or attached to the endoplasmic reticulum.

Vacuoles are membrane-bound spaces in the cytoplasm that are typically larger in plant cells than in animal cells. They store water, sugars, and salts, playing a crucial role in maintaining turgor pressure and supporting the plant cell structure.

The cell membrane is selectively permeable, controlling the passage of chemicals in and out of the cell.

Mitochondria and chloroplasts have their own DNA, RNA, and proteins, and are double-membraned organelles.

Vacuoles in plant cells are larger and store water, sugar, and salt, whereas animal cell vacuoles are smaller and have a more limited role.

Ribosomes are the site of protein synthesis, and they interact with the endoplasmic reticulum and Golgi apparatus to produce and transport proteins.

The nuclear membrane controls the passage of materials, especially RNA, in and out of the nucleus, and the nuclear pores facilitate this process.

The cell wall in plant cells is made of cellulose fibers, whereas the cell membrane in animal cells is made of phospholipids and proteins.

To prepare a plant cell for observation, place a small sample on a slide with water, cover with a coverslip, and stain with iodine solution.

The cell membrane acts as the boundary of the cell, controlling the passage of chemicals in and out to maintain the cell's structure and function.

The cell membrane is selectively permeable, controlling the passage of chemicals in and out of the cell.

Mitochondria and chloroplasts have their own DNA, RNA, and protein, unlike other cellular organelles.

Vacuoles in plant cells are much larger and play a more significant role in storing water, sugars, and salts, compared to the smaller vacuoles in animal cells.

Ribosomes are the sites of protein synthesis, producing proteins that are essential for the function of other cellular organelles.

The nucleolus is located within the nucleus and is responsible for the production of ribosomes, which are essential for protein synthesis throughout the cell.

The nuclear membrane and nuclear pores control the passage of materials, especially RNA, in and out of the nucleus.

Plant cell walls are made of cellulose fibers, while animal cell membranes are made of phospholipids and proteins.

To prepare a plant cell for observation under a light microscope, place the cell on a slide with water, cover with a coverslip, and stain with iodine solution.

The cell membrane is selectively permeable, controlling the passage of chemicals in and out of the cell.

Ribosomes are the site of protein synthesis, producing proteins that are essential for the functioning of other cellular organelles.

The nucleus contains the chromosomes, which are made up of DNA and proteins. The nucleolus, located within the nucleus, is responsible for the production of ribosomes, which are essential for protein synthesis.

Mitochondria and chloroplasts have their own DNA and are double-membraned, unlike other cellular organelles.

The nuclear membrane surrounds the nucleus and controls the passage of materials, particularly RNA, in and out of the nucleus. The nuclear pores are gaps in the nuclear membrane that allow this selective transport.

Vacuoles in plant cells are larger and play a more significant role in storing water, sugar, and salt, compared to the smaller vacuoles found in animal cells.

The cell wall in plant cells is made of cellulose fibers, providing structural support, while the cell membrane in animal cells is made of phospholipids and proteins, without a rigid cell wall.

To prepare a plant cell for observation under a light microscope, you would place the cell on a slide with water, cover it with a coverslip, and then stain it with iodine solution to make it more visible.