What is the basic unit of structure and function of all living organisms?
mitochondrion
dna
nucleus
cell

The basic unit of structure and function of all living organisms is the cell. The cell is the fundamental unit of all living things, it is the smallest unit of any living organism.

Keywords: The cell,  cell organelles, basic, fundamental, structural, living organisms

1. The cell;

2. Cell organelles;

3. Cell Functions and parts;

Level: High school

Topic: Cell

Sub-topic: Cell and cell organelles

The basic unit of structure and function in all living organism is cell.

Further Explanation:

Cells are the basic unit of the structure and function as they help in formation of organs and tissues. Organs and tissues makes up the whole body structure of a living organism. This organs and tissues undergo wear and tear and help the organism to grow and vitalize properly. The cell of different origin come together and forms a tissue. This tissue further aggregates to form a organ and organ systems. They have different task which helps them to perform a functions that is helpful in maintaining homeostasis.

Mitochondria are the powerhouse of the cell. It helps the organism to convert simple sugars into ATP (Adenosine Triphosphate) that is the basic form of energy molecule in an organism. This ATP undergoes cleavage of the terminal bond and liberates energy. The energy liberated herewith is used by the organism to carry out a great deal of important vital functions.

DNA is a basic unit of heredity. They are genetic material which gets transferred from one generation to another. An individual born to two people carries their (parents) genetic material. Therefore DNA is termed as the unit of heritance of character or traits.

Nucleus is the functional component of the cell also called as brain of the cell. Nucleus has no direct role in maintaining the structural and functional component.

Learn More:

1.Learn more about prokaryotic and eukaryotic cells

2.Learn more about eukaryotic cells

3. Learn more about DNA and RNA

Answer Details:

Grade: High School (5+2)

Subject: Biology

Chapter: Cellular organization of living beings.

Keywords:

DNA, RNA, eukaryotic cells, prokaryotic cells, cells, mitochondria, nucleus, living beings, living organisms, homeostasis, ATP, genetic material, growth.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school