Quiz Over The Plant And Animal Cell Organelles

The cell wall has the main function of protecting and providing support for the cell. It acts as a rigid structure that surrounds the cell membrane, giving the cell its shape and protecting it from external forces. The cell wall also helps to maintain the internal pressure of the cell, preventing it from bursting or collapsing. Additionally, the cell wall allows for communication and interaction between neighboring cells.

Mitochondria and chloroplasts are organelles that help provide cells with energy and release energy. Mitochondria are responsible for producing adenosine triphosphate (ATP), which is the main energy currency of the cell. They carry out cellular respiration, a process that converts glucose and oxygen into ATP. Chloroplasts, on the other hand, are found in plant cells and are responsible for photosynthesis. They convert sunlight, carbon dioxide, and water into glucose and oxygen, which can be used as a source of energy by the cell. Therefore, both mitochondria and chloroplasts play crucial roles in energy production and release within the cell.

The nucleus controls most of the cell processes and contains the hereditary information of DNA. It is the command center of the cell, regulating gene expression and directing the synthesis of proteins. It also houses the DNA, which carries the genetic instructions necessary for cell function and reproduction. The nucleus is surrounded by a nuclear membrane, which separates it from the rest of the cell and allows it to maintain a controlled environment for DNA replication and transcription.

The cell membrane is a thin and flexible barrier that surrounds the cell. It acts as a protective layer and regulates the transport of materials in and out of the cell. It controls the movement of substances, such as ions and molecules, through various mechanisms like diffusion, osmosis, and active transport. This selective permeability of the cell membrane allows the cell to maintain homeostasis by controlling the exchange of nutrients, waste products, and signaling molecules with its external environment.

The arrow in the cell is pointing towards the nucleus. The nucleus is a membrane-bound organelle found in eukaryotic cells. It contains the cell's genetic material, DNA, which is responsible for controlling the cell's activities and transmitting genetic information to the next generation. The nucleus also plays a crucial role in cell division and the synthesis of proteins.

The correct answer is "Toxin" because poisons released by some bacteria are known as toxins. Toxins are substances produced by bacteria that can cause harm to the host organism. They can disrupt normal cellular processes and cause various symptoms or diseases. Vaccines, antibiotics, and immunity are not directly related to the poisons released by bacteria.

The cell membrane regulates what enters and leaves the cell by acting as a selectively permeable barrier. It controls the movement of molecules and ions in and out of the cell, allowing necessary substances to enter and waste products to exit. Additionally, the cell membrane provides protection by separating the internal cellular environment from the external environment. It also provides support to the cell by maintaining its shape and integrity.

Binary fission is the correct answer because it is the most common type of asexual reproduction used by bacteria. In binary fission, a single bacterial cell divides into two identical daughter cells. This process allows bacteria to reproduce rapidly and efficiently, leading to exponential growth of the population. Unlike fusion, which involves the merging of two gametes, binary fission does not involve the fusion of genetic material from two different cells. Similarly, sexual reproduction and conjugation both involve the exchange of genetic material between two different cells, which is not characteristic of bacterial reproduction through binary fission.

Bacteria are single-celled microorganisms. They are small, simple organisms that lack a nucleus and other membrane-bound organelles. Bacteria are found in various environments, including soil, water, and the human body. They can be beneficial, such as aiding in digestion, or harmful, causing infections and diseases. As single-celled organisms, bacteria reproduce by dividing into two identical cells through a process called binary fission.

Vacuoles function as storage areas for water, sugars, salts, pigments, and toxic substances. They are membrane-bound organelles found in the cells of plants, fungi, and some protists. Vacuoles play a crucial role in maintaining the cell's internal environment by storing and regulating the concentrations of various substances. They can store water to maintain turgor pressure in plant cells, store sugars as a source of energy, store pigments for coloration, and sequester toxic substances to protect the cell from harm.

The capsid refers to the protein coat that surrounds the genetic material of a virus. It is responsible for protecting the viral genome and facilitating its entry into host cells. The capsid is composed of repeating protein subunits and provides structural stability to the virus. Therefore, the correct answer is "Protein of a virus."

Viruses are considered to be non-living because they lack the essential characteristics of living organisms. They do not have cells, cannot reproduce on their own, and do not carry out metabolic processes. Viruses are essentially inert outside of a host cell and require a host to replicate. While they possess genetic material, they are dependent on the host's cellular machinery to carry out any functions. Therefore, viruses are classified as non-living entities.

The correct answer is "Sub-Microscopic" because a virus is a sub-microscopic infectious agent that replicates inside the cells of living organisms. Unlike bacteria, which are single-celled microorganisms, viruses are much smaller and cannot survive or reproduce outside a host cell. Therefore, the term "sub-microscopic" accurately describes the size and nature of viruses.

Viruses consist of genes and DNA. Genes are segments of DNA that contain instructions for building proteins, while DNA is the genetic material that carries the genetic information of an organism. In the case of viruses, they rely on host cells to reproduce and use their genes and DNA to hijack the cellular machinery and replicate themselves. Therefore, the correct answer is genes and DNA.

Lysosomes are vesicles formed by the golgi apparatus. The golgi apparatus is responsible for packaging and modifying proteins and lipids into vesicles for transportation within the cell. Lysosomes are involved in the breakdown and recycling of cellular waste materials, and they contain enzymes that help break down proteins, carbohydrates, and nucleic acids. Therefore, it makes sense that lysosomes are formed by the golgi apparatus, which is responsible for packaging and modifying cellular components.

The correct answer is Staphylococcus. Staphylococcus is a type of bacteria that is characterized by its round shape and ability to form clusters or grape-like clusters. It is a spherical or coccus-shaped bacterium that can cause various infections in humans, such as skin infections, pneumonia, and sepsis. Staphylococcus bacteria are commonly found on the skin and mucous membranes of humans and animals. They can be identified under a microscope by their distinctive cluster arrangement.

Lysosomes are organelles that contain hydrolytic enzymes capable of breaking down macromolecules. These enzymes are involved in the process of digestion and waste removal within the cell. Lysosomes play a crucial role in maintaining cellular homeostasis by breaking down various substances such as proteins, lipids, carbohydrates, and nucleic acids. They are responsible for recycling cellular components and eliminating harmful substances. Therefore, lysosomes are the correct answer to the question.

Eubacteria is the correct answer because members of this kingdom are found in various habitats, including soil, water, and even inside the human body. They have peptidoglycan in their cell walls, which is a distinguishing characteristic of eubacteria. Archaebacteria, on the other hand, have a different type of cell wall composition. Protists and fungi are not part of the bacteria kingdom and do not have peptidoglycan in their cell walls.

Virus and animal are the correct answers because they are the only organisms listed that do not possess a cell wall. Viruses are acellular and do not have any cellular structures, including a cell wall. Animals, on the other hand, are multicellular organisms that lack a cell wall. Bacteria and fungi, however, have cell walls which provide support and protection to their cells.