48. During muscle contraction, actin-myosin complex is formed and produces a conformational change essential for contraction. This conformational change in the actin-myosin complex requires the binding of which of the following? A) ATP B) Ca2+ C) Creatine phosphate D) Mn²+ DE) Troponin

Q: Using good organization skills, check over your map of the steps in photosynthesis. Your flowchart…

A: Introduction  Photosynthesis is a process through which plants and other organisms transform light…

Q: B Oxidative phosphorylation

A: oxidative phosphorylation in cellular respiration. Oxidative phosphorylation is the fourth step of…

Q: (phenylketonuria)

A: An allele frequency is calculated by dividing the number of times the allele of interest is observed…

Q: Scientists wanted to determine what molecule held the 'gene'. If they did a study in which a cell…

A: A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA)…

Q: What is the magnification of the following drawing of a specimen extending one- hird of the medium…

A: Medium power in a computer microscope has 10X magnification.    Size visible = 1/3rd of 1.8mm…

Q: 25/ 50 Which of the folkmings not true about near electron flow? A Photosystems I ll are involved B…

A: The chloroplast is involved in the process of photosynthesis. The light dependent phase and Calvin…

Q: What is a helix-turn-helix motif?   secondary structure in which an α helix is separated from a β…

A: Introduction Motifs are the super secondary structure formed by the combinations of secondary…

Q: Water wisteria is an aquatic plant that is easy to care for and reproduces very quickly. A small…

A: Given : initial population size = 78 Number of new plants introduced daily = 15 Number of plants…

Q: Identify each of the following statements as being most similar to a hypothesis,a law or a theory.…

A: Hypothesis It is defined as a proposed explanation for an event. It is an assumption that is put…

Q: In the human enzyme encoded by the DCXR gene, a mutation in the protein coding region of the DCXR…

A: Introduction :- A mutation is a change in the structure of a gene, which is the fundamental unit of…

Q: city to "store" Energy, from the Sun, is limited to a certain and on the planet. Which of the…

A: Plants use sunlight for the process of photosynthesis. This possible because of the presence of…

Q: What is Asexual reproduction?

A: The creation of offspring is referred to as reproduction. There are two types of reproduction:…

Q: Lab was on the translation process from mRNA to amino acid, post-translational modification of…

A: Introduction  Protein biosynthesis is an important biological process that takes place inside cells…

Q: 12. 11 13 10

A: Chick embryo The development of fertilised chicken egg is termed a chick embryo. It is extensively…

Q: The correct sequence of levels forming the structural hierarchy is (a) organ, organ system,…

A: Introduction  Biological organisation is a reductionistic hierarchy of complex biological structures…

Q: The frequency of two alleles in a gene pool is 0.19 (A) and .81 (a). Assume hardy-Weinberg…

A: Every gene coding for a particular trait has two alternative alleles. One allele is dominant, while…

Q: 32. A lesion of the right fasciculus gracilis at C-5 is most likely to result in loss of which of…

A: A lesion of the right fasciculus gracilis at c-5 is most likely to result in loss of vibration sense…

Q: 6) The presence of 2,3-diphosphoglycerate (DPG) shifts the oxygen-hemoglobin dissociation curve…

A: 2,3-DPG acts as a regulator of the allosteric properties of hemoglobin in the RBC. When 2,3-DPG is…

Q: Identify three body systems that are directly involved in kicking a ball and how the three systems…

A: INTRODUCTION Mascular system This include skeletal, smooth and cardiac muscles. Skeletal system…

Q: briefly describe one benefit an organism that uses asexual reproduction

A: Introduction  Asexual reproduction is a type of reproduction in which a single parent produces a new…

Q: 7. In the human body, fibrinogen is necessary for sealing cuts and stopping the loss of blood. Since…

A: Biological macromolecules are the molecules which are needed in enough amount for the body. It…

Q: 47. Which of the following regions of the retina is capable of the highest spatial resolution and…

A: Introduction :- The retina connects the light that enters your eyes to the images that you see. Your…

Q: 12 10 13

A: The life of multicellular organisms start in a single cell called zygote which is formed after…

Q: You purified the genome of the coliphage X174. After analysis, you composition is 25 percent A, 33…

A: E. coli-infecting viruses are known as coliphages. These viruses, in addition to the conventional…

Q: Describe what is meant by “alternation of generations”. 2. Describe the function of the archegonium…

A:

Q: The mechanem by which electron transport as coupled to ATP production by means of proton gradent is…

A: Cell is the basic structural and functional unit of life. It requires energy molecules like ATP in…

Q: agent: with respect to disease transmission of SARS-CoV-2, provide one example for each of the…

A: SARS-CoV-2 Severe Acute Respiratory Syndrome  Coronavirus (SARS-CoV-2). SARS-CoV is a member of the…

Q: Beyond a certain level of activity, the health benefits of exercise can be reduced.  This is known…

A: Introduction  The World Health Organization defines health as "a condition of complete physical,…

Q: Which of the following is required for positive regulation of gene expression?   Question 16…

A: Gene expression is the process by which the instructions in our DNA are converted into a functional…

Q: 50 A The Backbone of the DNA molecule is made of which componere(s) of the nucleotide shown in the…

A: DNA stands for deoxyribonucleic acid which is made up of two strands of polynucleotide chains in a…

Q: In the dc ad cyde, acetyl Co-A joins the cycle by B citrate pyruvate acetate oxaloacetate alpha…

A: Citric acid cycle is also known as Krebs cycle or tricarboxylic acid cycle. Krebs cycle occurs in…

Q: Photopic vision involves 1) Vision at night 2)Rods and cones working 3) poor illumination 4) all of…

A: Introduction  Vision refers to the ability to see. To see, the brain and the eyes work together. The…

Q: In the human microbiome, which of the three life domains is/are represented? Explain your answer.

A: Human microbiome can be defined as all the microbes that lives or resides in the human tissues. The…

Q: utosomal dominant traits cannot skip generations within a family tree. True or False.

A: A pedigree chart is a visual representation of a family's history in the shape of a tree, from which…

Q: BIAL FILE MICROORGANISM/CAUS ATIVE AGENT D SHAPE E HABITAT F DISCOVERY G MICROSCOPIC IMAGE II…

A: Note: please note that parts I-G and II- I cannot be solved as they require support from external…

Q: You want to use some celery that has gone soft and wilted in the refrigerator, for your dinner later…

A: The celery has gone soft and wilted when it was kept in the refrigerator as it has lost some water…

Q: Which of the following statement(s) is/are true. You can select multiple options. Select all that…

A: Insertion or deletion of 3 or more nucleotides does not cause frame shift mutation. Frame shift…

Q: seems that the expert only addressed the background of prorooncogen and the impact of Ras causing…

A: Protooncogenes are the genes that form the proteins that are responsible for cell division and cell…

Q: Using examples, name and describe three different types of interspecific interactions. Be sure to…

A: The relationship that exists between individuals of different species of a biological community is…

Q: 11) What is the relative speed (slower, faster, the same) of a second response compared to the first…

A: On the epidermis, in body tissues, and in bodily fluids such as blood, the immune system fights…

Q: A chemical or a pohon may directly enterfere with glycolys A reacts with NADH and oxidizes it to…

A: Glycolysis is the pathway that metabolizes glucose and other monosaccharides like fructose, and…

Q: Scientists wanted to determine what molecule held the 'gene'. If they did a study in which a cell…

A: The flow of genetic information in a biological system is explained by central dogma and it involves…

Q: Suppose that the short allele is a meiotic drive gene, and 80% of the gametes from a heterozygous…

A: Introduction  Inheritance is the ability of organisms to pass on qualities to their offspring…

Q: 43. The medical staff at an isolated public health clinic in rural Peru decide to administer oral…

A: Introduction  An outbreak occurs when the number of cases of a disease exceeds the normal…

Q: Explain counter-current flow and its importance to aquatic species

A: Fishes are the aquatic living organisms that live and survive in the waters. They possess…

Q: The template strand of a gene contains the following sequence: 3'-TAC TTG TCC GAT ATC-5' Following a…

A: Introduction A mutation is a change in the sequence of nucleotides in DNA or RNA. Everyone is…

Q: Some white blood cells have lobed nuclei. Why

A: Ans- Unlike red blood cells, white blood cells (leukocytes) are nucleated and motile. They are…

Q: Match the endocrine glands numbered above with the functions listed below. ____ Releases a hormone…

A: Hormones are chemical messengers that are secreted directly into the blood, which carries them to…

Q: Dr. Brown asked Priya to specifically detail the pros and cons for including individuals age 65 and…

A: HIV human immunodeficiency virus . we have to discuss pros and cons of HIV testing in individuals…

Q: Which of the following serves as an advantage to using numerical taxonomy? a. Trait choices are…

A: Introduction :- Numerical taxonomy is a biological systematics classification system that deals with…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.