Syed Ali Academy

  Chapter no 8th nutrition 1) A) Where are villi present A) stomach b) small intestine c) large intestine d) mouth 2) in oral cavity food is changed into_______ A) chyme b) chyle c) bolus d) n.o.t 3) downward movement of food through alimentary canal is called____ A) persitalsis b) churning c) emulsification d) absorption 4) breakdown of fats into fat droplets  A) persitalsis b) churning c) emulsification d) absorption 5) which of the following is present in chlorophyll A) magnesium b) chlorine c) iron d) all of these 6) cardiovascular means disorders of________ A) heart b) veins c) arteries d) all of these 7) the disorder caused by no absorption of water in colon is called_______ A) constipation B) Diarrhea c) dysentery d) ulcer 8) which disorder is caused by deficiency of vitamin D A) rickets b) osteomalacia c) both of these d) none of these 9) bile is the product of ______ A) liver b) stomach c) pancreas d) none of these 10) _____is not present in stomach A) HCl b) pepsin c) trypsin

Question 1: Why mineral nutrients are necessary for plants? Without proper amounts of these nutrients, plants may exhibit stunted growth, yellowing of leaves, and reduced yield or even death in extreme cases. Question 2: Why N2 is included in mineral nutrient although it not mineral? N2 or atmospheric nitrogen is not technically a mineral nutrient as it is not derived from the soil. However, it is still considered an essential nutrient for plant growth because plants require nitrogen to synthesize proteins and other essential biomolecules. Although nitrogen makes up 78% of the atmosphere, it is in a form that is not readily usable by most plants. Nitrogen fixation is the process by which atmospheric nitrogen is converted into a usable form, such as ammonium (NH4+) or nitrate (NO3-), by certain bacteria that live in the soil or in symbiosis with plants. Plants take up nitrogen in the form of these nitrogenous compounds and use it for various purposes, such as building proteins and nucle

 Chapter 12 short questions  Q1: why higher animals need circulatory system? Higher animals need a circulatory system to transport nutrients, gases, and waste products between cells, organs, and tissues throughout the body and longer distances and in short time. Q2: why sa node is called pace maker of heart? The SA node is called the pacemaker of the heart because it generates electrical impulses that set the rhythm for the entire heart to beat in a coordinated manner. Q3: why the capillaries have single layer of endothelium? Capillaries have a single layer of endothelium to facilitate the exchange of gases, nutrients, and waste products between the blood and tissues through a thin and permeable barrier. Q4: what are lub and dub? Lub and Dub are the sounds heard during a heartbeat. Lub is the sound of the atrioventricular (AV) valves closing when the ventricles contract, while Dub is the sound of the semilunar valves closing when the ventricles relax. Q5: why circulatory system of arth

Q-1 List out the stages in holozoic nutrition Holozoic nutrition is a type of nutrition in which an organism ingests solid or liquid food particles and then digests and absorbs the nutrients from them. The stages of holozoic nutrition can be summarized as follows: Ingestion: The organism takes in solid or liquid food particles into its body through its mouth or specialized feeding structures. Digestion: The ingested food particles are broken down into smaller molecules by mechanical and chemical processes. Mechanical digestion involves physical actions like chewing, while chemical digestion involves the action of enzymes and other chemicals that break down complex molecules like proteins, carbohydrates, and lipids into simpler molecules like amino acids, sugars, and fatty acids. Absorption: The smaller molecules produced by digestion are absorbed across the lining of the digestive tract and into the bloodstream or body tissues. Assimilation: The absorbed molecules are used by the organ