All living organisms respire in some manner. Plants always respire but don't always photosynthesize. This is why plants give out oxygen during the day and carbon dioxide at night.Know More
Plants require energy to maintain the function of their cells, normally obtained through photosynthesis. However, photosynthesis does not do all of the work required with respiration required to convert the necessary minerals into glucose. Photosynthesis occurs in the chloroplasts of plant cells where carbon dioxide (from respiration) and water (drawn through roots) convert energy from the sun and chlorophyll into a substrate of glucose and oxygen. This action proves respiration is necessary for plant cells.
Placing a plant in a room with varying levels of light will prove that while the energy needed to photosynthesize is absent, the act of respiration continues An example of this can be seen in non-evergreen plants shedding their leaves in winter, during which they respire while feeding on glucose deposits stored within.
The act of respiration is not the same as breathing. According to the Merriam-Webster dictionary, respiration is "any of various energy-yielding oxidative reactions in living matter." Plants respire in two manners with photosynthesis yielding oxygen and without photosynthesis yielding carbon dioxide.Learn More
The main difference between plant cells and animals cells is that plant cells possess a cell wall and animal cells do not. Animal cells have an irregular shape, and plant cells have a fixed, rectangular shape.Full Answer >
Plant cells do not contain lysosomes. Lysosomes are present in the cells of animals, and they are responsible for breaking down waste and other cell debris.Full Answer >
Plant cells differ from animal cells in their possession of chloroplasts, a cell wall, a large central vacuole and their relative lack of an internal cytoskeleton. Plant cells gain their form and rigidity from the pressure of their large, water-filled vacuoles against their tough cellulose cell walls. Animal cells must rely on protein-based skeletal structures within the cell to maintain their shape.Full Answer >
Plants and animals are multi-cellular organisms composed of eukaryotic cells, while bacteria are single-cell prokaryotic organisms. Each eukaryotic cell of a plant or animal includes a central nucleus containing DNA and membrane-bound organelles, such as endoplasmic reticulum and mitochondria. A bacterial cell has no nucleus or membrane-bound organelles.Full Answer >