Direct communication between animal cells that a virus infection like Covid 19  has taken place can occur via;   Select one: a. tight junctions b. plasmodesmata c. gap junctions d. desmosomes

Q: After looking at the muscle tissue samples under a microscope, a classmate claims that they must…

A: Introduction :- Muscle is a type of contractile tissue that is organised into systems for increased…

Q: Which of the following statements about the living cells is FALSE? A) They are found in all animals…

A: Answer - option A - They are found in all animals but not in all plants. ( false statement)

Q: Which of these structures is not an example of an extracellular matrix?   A. Nuclear envelope   B.…

A: The extracellular matrix ( ECM) consists of collagens, proteoglycans / glycosaminoglycans, elastin,…

Q: The gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap…

A: (extracellular matrix). They play important role in the development and functioning of multicellular…

Q: Which of the following statements is INCORRECT about plant cells?  A. They have nucleus with…

A: Plant cell: Plant cells are eukaryotic cells with a true nucleus along with specialized structures…

Q: Biochemists developed a compound that they hypothesize will disrupt the ability of the cells to…

A: Microtubules act as cytoskeleton along with intermediate filaments and microfilaments. These help in…

Q: What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that…

A: Endosymbiosis Symbiosis is a mutually beneficial relationship where both organisms are benefitted…

Q: Cells synthesize new organic molecules to(a) perform structural maintenance and repairs.(b) support…

A: Answer- There are basically 4 different types of biomolecules that are proteins, fats, carbohydrates…

Q: Which of the following statements about plasmodesmata is true? a. They prevent cytoplasm from…

A: Cell junctions are the sites at which cells are linked to one another or to the extracellular…

Q: A change in ion (salt) concentrations in an animal’s body may result ina. altered membrane…

A: The correct answer is option (e).

Q: The drug vincristine, which prevents polymerization of tubulin, is used as a chemotherapeutic agent…

A: Mechanism of actions of drug vincristine in cancer treatment.

Q: Mucin is a glycoprotein found in mucus that increases its viscosity. Carbohydrates are added to…

A: When the glycosyl group of a carbohydrate which acts as a glycosyl donor is attached to a hydroxyl…

Q: The major function of the sodium-potassium pump is toa. pump Na+ into and K+ out of the cell.b.…

A: Potassium and sodium both are one of the essential electrolytes that are needed for the body to…

Q: Membrane proteins that connect the cytoskeleton to the extracellular matrix: Select one: a.…

A: Membrane proteins are the integral proteins that span the whole length of the cell membrane. They…

Q: he difference between a gap junction and plasmodesmata is… Select one: a. Gap junctions are formed…

A: Animal cells communicate by using thier extracellular space which is connected other cell through…

Q: Plant and animal cells are similar in many ways, but there are some ways they are different. What…

A: Animal cell is different from plant cell in many ways b) Animal cell have no  vacuoles or less…

Q: You genetically engineered a cell to no longer contain the extracellular domain of an integrin. What…

A: This question is based on the interim and it's ability to bind to the cells.

Q: In order for the Golgi apparatus to release synthesized molecules to the outside of the cell…

A: The proteins synthesis in the cytosol or RER membrane need to be translocated to their respective…

Q: Which of these cell junctions are open channels that connect the cytoplasm of adjoining plant cells?…

A: When different cells are lying in a group, they are joined with various processes. The communication…

Q: Diseased animal cells may produce molecules thatactivate death cascades to kill the cells in a…

A: Cell communication is the capacity of cells to communicate with nearby cells inside a creature. The…

Q: How would an animal cell react in a glass of ocean water?   a. nothing will happen   b. It will…

A: When we put animal cells into pure, fresh water (H2O) , water enters the cells as a result of…

Q: The total volume of plant cells is often significantly greater than the total volume in animal…

A: A cell is the tiniest, most fundamental unit of life, responsible for all of life's processes.” All…

Q: Junctions that permit the transfer of water, ions, and molecules between adjacent plant cells are…

A: Cells in multicellular organisms communicate with each other.

Q: Joins the intermediate filaments in one cell to those of a neighboring cell a) Adheren Junctions…

A: Cell is an elemental unit of the body and is basic structural body organization in which numerous…

Q: Animal cells adhere together strongly through ., which are supported by intermediate filaments O a.…

A: Cells consist of a network of filaments called cytoskeleton i.e cell skeleton. Cytoskeleton supports…

Q: The site of protein synthesis is A. At ribosomes . B. Always at a Golgi body. C. At the nuclear…

A: Protein synthesis is the terminal step of gene expression and is also called translation. The codons…

Q: Which of the following statements is NOT TRUE about tissues? A. The extracellular matrix of blood…

A: Cells are the basic structural and functional unit of life. These cells combine to form the tissues.…

Q: Which of the below statements correctly describes the extracellular matrix? a)A layer that…

A: Introduction :- The extracellular matrix (ECM) is a three-dimensional network of extracellular…

Q: Compare the values below. Which is greater, or are the two values equal? A. Amount of cytoplasm in a…

A: Since there are multiple questions in this case, I'd answer the first one for you. If the answer for…

Q: Which of the following best describes an observation/experiment from a model organism that has…

A: Model organisms are organisms that can be used as simple reference to study about various organisms.…

Q: Without a properly functioning membrane, a cell would (a) not be able to give instructions to its…

A: The cell membrane, also known as the plasma membrane, divides the cell's inside from its…

Q: Cell junctions called connect the cytoplasm of adjacent plant cells. a. plasmodesmata d. adhesion…

A: Cell junction is a type of cellular structures involves different types of proteins, it helps to…

Q: Dynein uses ATP to    A. propel axoneme arms together   B. undergoes  confo

A: Protein is known to be a very complex substance. It consists of amino acid residues, which are…

Q: Which pair of organelles works together to give structure and support in animal cells? A.…

A: The body of an animal is made up of a variety of cell kinds. The tissues and organ systems are made…

Q: Suppose you are to describe structure 3, which of the following best describes it? 1 2 3 4 Figure 4.…

A: Introduction The given figure shows cell modifications and the labeled parts are:- 1. Free surface…

Q: Researchers obtain a pure solution of antibodies that bind specifically to the cadherins (linking…

A: Agglutination reaction is a reaction  or process which occurs when a antigen is mixed with its…

Q: Which of the following adaptations compensates for one of the disadvantages of being multicellular?…

A: Multicellular organisms are those organisms that have more than one cell. All animals, plants and…

Q: Answer the Guide Question: a) Each cell in an organism has all of the basic parts. Each has a…

A: Each cell in an organism has all of the basic parts. Each has a function that benefits the other…

Q: Which is not true of cilia and flagella A. require ATP to bend B. have an identical axoneme E. can…

A: Bacteria have thin filamentous Extension from their cell wall called flagella. Cillia are also the…

Q: dpole matures into a frog, and its tail gradually disappears completely because some organelle may…

A: Metamorphosis is the process through which an animal physically changes after being born or hatching…

Q: In which of the following ways does a bacterial cell differ from an animal cell? a. A bacterial cell…

A: Animal cells are eukaryotic whereas bacterial cells are prokaryotic.

Q: What is true about the membrane of the egg? Select one or more: a. It is semi-permeable which means…

A: An egg is made up of two membranes. The hard external membrane and an internal membrane. The…

Q: Which statement below is corredt when comparing plant and animal cells? O Plant cells only have a…

A: Introduction:  Cell make up the basic framework of all living beings, they are regarded as a…

Q: Brefeldin A is a drug that disrupts the transfer of protein from the ER to the Golgi apparatus.…

A: Introduction :- The endoplasmic reticulum is the eukaryotic cell's transportation system, as well as…

Q: lons can travel directly from the cytoplasm of one animal cell to adjacent cell through A) gap…

A: Gap junctions have been discovered to transfer ions from one cytoplasm to another and hence become…

Q: Each cell in an organism has all of the basic parts. Each has a function that benefits the other…

A: Honeycomb is a large structure consisting of little rooms or compartments within which the honey…

Q: What is the sarcoplasmic reticulum important for? a. Initiating an action potential b. Stabilizing…

A: (C) option is correct answer.   The actin myosin interaction produces two types of movements: force…

Virus

Viruses are infectious microscopic agents that can only reproduce in live cells of animals, plants, or microbes and are smaller than bacteria. Vertebrates, invertebrates, plants, protists, and fungi are among their many hosts. Viruses are unable to multiply on their own due to the lack of necessary cellular machinery, but they can guide the cell machinery of a host to make additional viruses by infection. The virus enters and attaches to a particular host cell, injects its genetic material, and reproduces by using the host’s genetic material. Viruses cause infection by taking entry into the host cell and using the host cell’s enzymes and raw materials to multiply.