Photosynthesis is the process by which a plant cell converts carbon dioxide (co2 ) to food sugars via light energy the aim of the experiment was to determine whether different light intensities have different effects on the rate of photosynthesis of two plants, one grown in normal light conditions and one. Answer all questions 1 the diagram below shows the rate of uptake of carbon dioxide for a species of grass at different light intensities measurements were taken at a constant external carbon dioxide concentration and a temperature of 15 °c (a) calculate the rate of uptake of carbon dioxide between 250 and 750 lux. Home science and technology biology and genetics biology: general carbon cycle photosynthesis: chemical process by which plants containing chlorophyll use sunlight to manufacture their own food by converting carbon dioxide and water to carbohydrates, releasing oxygen as a by-product respiration: the process. Photosynthesis can be thought of as the opposite process of cellular respiration through two processes known as the light reactions and the dark reactions, plants have the ability to absorb and utilize the energy in sunlight this energy is then converted along with water and carbon dioxide from the atmosphere into glucose. Carbon dioxide oxygen cycle - plants and animals depend on each other by shawnte lamar | this newsletter was created with smore, an online tool for creating beautiful newsletters for for educators, nonprofits, businesses and more.
Discussion (1 point per box) photosynthesis x removes co2 from the atmosphere x reduces (or uses) co2 x fixes carbon into organic molecules ( sugars) cellular respiration x metabolizes (oxidizes, catabolizes) organic molecules (sugars) x returns co2 to the atmosphere x releases co2 (b) for three of the. The scope of this essay is that it will describe the concept of homeostasis, in addition to the homeostatic mechanisms of which regulate heart rate, breathing rate in order to introduce more oxygen to the blood stream and bring back equilibrium of both oxygen and carbon dioxide levels in the blood stream. 8 an investigation was carried out to show how light intensity affects the rate of carbon dioxide uptake in two different plant species the results are shown in the table below (a) for each plant species, there is a particular light intensity value which results in no net exchange of carbon dioxide state the term used to describe. 2research school of biology, australian national university 3arc centre of excellence inplant energy biology, university of western australia rubisco ( ribulose-1,5-bisphosphate carboxylase/oxygenase) is the most abundant single protein on earth and is pivotal for co2 assimilation by all plants in higher plants, the.
Aqa a2 biology: writing the synoptic essay by dr robert mitchell ct publications this essay has established that enzymes are fundamental biological molecules which offer a diverse range of functions to living the lungs whose function is the gas exchange of carbon dioxide and oxygen across the epithelium of the. Carbon dioxide only comprises 004 % of the earth's atmosphere but it is a vital molecule in many processes and effects organisms directly with photosynthesis in plants, body functions causing global warming which then has numerous indirect effects on organisms arguably one of the most important.
Osmosis and turgor haemoglobin dissociation, ph and carbon dioxide uptake/ movement of water/mineral ions by/in plants ions in biological molecules hydrogen, photosynthesis and respiration anaerobic respiration and lactate nerve impulses and synaptic transmission regulation of blood water potential/ kidney. 10 a using dna in science and technology 2011 10 b a cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next write an essay about cycles in biology 2010 10 a carbon dioxide may affect organisms directly or indirectly describe and explain these effects. The ratio of oxygen evolved to carbon dioxide consumed is one the over all reaction of photosynthesis is — nн2о + nсо2 → light / chlorophyll no2+ (ch2o) n thus, water is the donor of h2 the o2 that is liberated also comes from water and not from co2 as has been confirmed by experiments using 18 'heavy oxygen.