Cell Structure And Function Quiz With Answers

The cell membrane serves multiple functions in a cell. It provides shape and protection by enclosing the cell and acting as a barrier against external factors. It also regulates the movement of substances into and out of the cell, controlling the exchange of nutrients, waste products, and signaling molecules. The cell membrane contains various proteins and channels that facilitate the transport of specific molecules. Therefore, the correct answer is that the cell membrane gives the cell shape and protection and regulates the movement of substances into and out of the cell.

The correct answer is "in the cytoplasm, break down food and foreign material (ingest, digest, destroy)". Lysosomes are membrane-bound organelles found in the cytoplasm of cells. They contain digestive enzymes that break down various molecules, including food particles and foreign materials. Lysosomes play a crucial role in the process of digestion and waste removal within the cell. They help in breaking down complex substances into simpler forms that can be utilized by the cell for energy or eliminated as waste.

Centrioles are organelles found close to the nucleus in animal cells. Their main function is to play a major role in cell division, specifically in the process of nuclear division. They form spindle fibers that help in the separation of chromosomes during cell division. Therefore, the correct answer is "close to the nucleus, nuclear division (major role in cell division)".

The correct answer is mitochondria. Mitochondria are organelles that are responsible for energy conversions in cells. They are often referred to as the "powerhouses" of the cell because they produce the majority of the cell's energy in the form of ATP through a process called cellular respiration. This process involves the conversion of nutrients, such as glucose, into usable energy. Mitochondria have their own DNA and are believed to have originated from ancient bacteria that were engulfed by early eukaryotic cells.

The Golgi apparatus is located in the cytoplasm of the cell. Its main function is to modify, package, and export proteins. It receives proteins from the endoplasmic reticulum and processes them by adding sugars or lipids to them. It then packages these modified proteins into vesicles and transports them to their final destination within or outside the cell. Therefore, the Golgi apparatus plays a crucial role in the sorting, processing, and transportation of proteins within the cell.

The plasma membrane is the outermost boundary of a cell, separating the cell from its external environment. It surrounds the cell and acts as a protective barrier, regulating the movement of substances in and out of the cell. It is composed of a phospholipid bilayer with embedded proteins that allow for selective permeability. Therefore, the correct answer is "surrounding the cell".

The correct answer is "outside cell, protection, strength, and shape." The cellulose cell wall is located outside the cell and it serves multiple functions. It provides protection to the cell by acting as a barrier against external threats. It also gives strength and rigidity to the cell, maintaining its shape. Additionally, the cell wall connects adjacent cells, providing structural support to the overall organism.

Organelles associated with cell-to-cell connections are called cell junctions. Cell junctions are specialized structures that allow cells to adhere to each other and communicate with each other. They play a crucial role in maintaining the integrity and functionality of tissues and organs. Different types of cell junctions include tight junctions, adherens junctions, desmosomes, and gap junctions. These junctions provide mechanical support, regulate the passage of molecules between cells, and facilitate cell signaling.

The correct answer is plasma membrane. The plasma membrane is a double layer of phospholipids that surrounds the cell and separates its internal environment from the external environment. It plays a crucial role in maintaining the integrity and function of the cell by controlling the movement of substances in and out of the cell.

The chloroplast is responsible for photosynthesis and contains green pigments. It is located in the cytoplasm of the cell. Photosynthesis is the process by which plants convert sunlight into energy, and the chloroplast plays a crucial role in this process by capturing light energy and converting it into chemical energy. The green pigments, such as chlorophyll, are present in the chloroplast and are responsible for absorbing light energy. Therefore, the correct answer is that the function and location of the chloroplast are in the cytoplasm, photosynthesis, and green pigment.

The correct answer is "Middle of the cell, the brain of the cell." The nucleus is located in the middle of the cell and functions as the control center or "brain" of the cell. It contains the cell's genetic material, DNA, and is responsible for regulating the cell's activities, including protein synthesis and cell division.

Flagella are longer than cilia. Cilia are small, hair-like structures that are present on the surface of certain cells and are involved in movement. They are typically shorter and more numerous compared to flagella. Flagella, on the other hand, are longer whip-like structures that are also involved in cell movement. They are usually fewer in number and longer in length compared to cilia. Therefore, flagella are longer than cilia.

The mitochondria is responsible for producing ATP, which is the main source of energy for cells. It is located in the cytoplasm, where it carries out the process of cellular respiration to generate ATP.

The cytoskeleton is located in the cytoplasm of a cell and it serves the function of providing structure and shape to the cell. It is a network of protein filaments that helps in maintaining cell shape, supporting cellular movements, and facilitating the transport of organelles within the cell.

Cell junctions are specialized structures that are located on the outside of the cell and their main function is to connect two adjacent cells together. These junctions provide mechanical support and help in maintaining the integrity of tissues. They also facilitate communication and exchange of molecules between cells. Therefore, the correct answer is "outside cell, connect two cells".

Cilia and flagella are hair-like structures found on the surface of cells. They anchor to the cell membrane and help in the movement of the cell. They are responsible for the locomotion of cells, such as the movement of sperm or the movement of mucus in the respiratory tract. Therefore, the correct answer is that cilia and flagella anchor to the cell membrane and help mobilize the cell.

The organelles associated with structural integrity are the cytoskeleton and the cell membrane. The cytoskeleton provides support and shape to the cell, while the cell membrane acts as a barrier and maintains the cell's structural integrity by controlling what enters and exits the cell. These organelles work together to ensure the cell maintains its shape and structure.

Centrioles, nucleus, and DNA are all associated with the function of cell division. Centrioles play a crucial role in organizing the spindle fibers during cell division. The nucleus contains the genetic material (DNA) that is replicated and divided during cell division. Therefore, these organelles are essential for the proper functioning of cell division.

Mitochondria are the powerhouse of the cell and are responsible for generating ATP through aerobic respiration. They contain enzymes involved in the electron transport chain and oxidative phosphorylation, processes essential for ATP synthesis.

The organelles associated with the function of information storage and transferal are ribosomes, golgi, DNA, nucleus, nucleolus. Ribosomes are responsible for protein synthesis, golgi apparatus modifies, sorts, and packages proteins and lipids, DNA stores genetic information, nucleus houses the DNA and controls cell activities, and nucleolus produces ribosomes.