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Biology answers to 194 questions
The human body gets rid of unwanted substances through excretion processes. There are organs involved in these processes. The core function of the liver is to filter blood coming from the digestive system before its distribution to other body parts.…
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Food safety revolves around different hazards ranging from biological to physical. Biological hazards have to do with parasites, viruses, mold and bacteria. Physical hazards in food happen when there are foreign particles such as bugs, bones, glass and hair among…
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The human brain is the main target of alcohol effects on the body. Many parts of the brain get affected including the medulla and the cerebellum. Alcohol works like a switch that enhances or blocks the communication lines of the…
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Energy drinks commonly used as mixers are usually very sweet because they have many artificial sweeteners. These are used to hide the taste of alcohol, making it easier for people to drink, particularly for those that are not used to…
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ATP (adenosine triphosphate) is formed through bonding a phosphate group to ADP (adenosine diphosphate). During the process of cellular respiration, the organism converts the chemical energy in food to the energy the cells can use, and stores it in the…
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In fact, both processes are the mechanisms of evolution and alter the allele frequency in the population. However, they change the frequency of alleles in a different way. Natural selection causes the individuals with better abilities of surviving and reproducing…
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I hope, this will help) Polyploidy represents the case of chromosomal mutation, where the cell contains the extra set of chromosomes: three sets - triploid, four sets - tetraploid, etc. As a rule, this kind of mutation is inherit to…
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Greetings! Aminoacids are the monomers of proteins. Amino acid consists of the acidic carboxyl group (-COOH), basic amino group (-NH2), and a side chain (R group), specific for each amino acid. All of them are joined together with peptide bonds.
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The main difference between mitosis in plant and animal cells is the process of dividing parent cell into daughter cells during cytokinesis. In this process, the animal cells are forming the furrow, while the plant cells are forming a new…
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They are as follows: Protein buffer system (maintains cell acidity) Phophate buffer system (neutralises extra hydrogen ions) Carbonic acid bicarbonate buffer system (neutralises acids) Additionally, all of them maintain pH homeostasis of the human blood.
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The main purpose of cytokinesis is to split the parent cell into the daughter cells. However, cytokinesis in the plant cells forms the cell wall in this process, while cytokinesis in the animal cells forms the cleavafe furrow.
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Correct answer is B. storing energy that will be transferred to ADP to resynthesize ATP Generally, creatinine phosphate is used as a source of additional enegy during intensive muscular activity, when the standard aerobic respiration is not sufficient.
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The answer is: none of them. Explanation: Gluconeogenesis is an enzyme-catalyzed reaction, taking place in the liver. When phosphoenolpyruvate is formated from oxaloacetate, the carbon dioxide gets discharged in this process, and no external CO2 is needed in order to…
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Endoplasmic reticulum (also known as ER) is transporting the proteins to the lumen of Golgi complex. After that they are modified and sent to the secretory vesicles and lysosomes (hydrolytic enzymes).
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Hello! It is called population.
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Both processes involve a cycle of chemical reactions (cellular respiration involves conversion of biochemical energy, whereas photosynthesis involves conversion of carbon dioxide and water into glucose and oxygen) Both processes involve energy conversions (see previous explanation) Both processes use an…
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Greetings! The major function of a vascular tissue is maintaining the sugar and water balance of a plant. It consists of phloem and xylem, the first one transports sugar, while the latter transports water and minerals to the different parts…
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The correct answer here is B - kidneys. They are the main excretion organs, filtering blood and regulating the body water balance.
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The answer is simple: Structural isomers have the same molecular formula but different covalent arrangements of their carbon skeletons.
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Alcohol fermentation is the anaerobic process, and it's products are ethyl alcohol and carbon dioxide.
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Correct option is Aspartic acid. Aspartic acid is the aminoacid with polar side chains, so, it will be found not inside the protein but on its surface.
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The correct answer is 4. Gene expression in eukaryotic cells occurs at epigenetic, transcriptional, post-transcriptional, translational, and post- translational levels
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The correct answer here is as follows: Constantly high blood sugar leads to high insulin release. High amounts of insulin lead to down-regulation of insulin receptors.
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Answer: Each nucleotide consists of the following parts: Phosphate group Pentose sugar Nitrogenous base (adenine)
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Answer: All known living organisms are made of cells Cells are the smallest basic units of structure for all living organisms Only already existing cells can produce new cells
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Not all plants can’t live in anoxic soil. Anoxic soil does not have the pockets of oxygen that plants need to survive. However, wetland plants have been able to live in anoxic soil. These plants adapt by getting their oxygen…
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Some biologists have opined that the biological evolution of man can be traced from the four-legged ape to the present upright bipedal gait of humans. Giving this notion, there can be no anticipation of further evolutionary change since man is…
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The three factors that can influence laboratory diagnostics include: What you drink or eat before the test The medicine you take before the test Your sex or age What you eat or drink can influence laboratory diagnostics. even the time…
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Microbial growth is the rate at which the population of microbes grows. The growth rate can increase when the temperature, pH, and other factors for growth are in good condition. When the environment is conducive for growth, micro-organisms like bacteria,…
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Information for making proteins is passed down from generation to generation through DNA. it involves an essential process that entails taking information from the DNA and passing it to the RNA and to proteins. this is one of the vital…
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