The nucleus
is a small egg-shaped structure inside the cell which acts like the brain of the cell. It tells every part of the cell what to do.
What cell tells cells what to do?
Hidden inside almost every cell in your body is a chemical called DNA. A gene is a short section of DNA. Your genes contain instructions that tell your cells to make molecules called
proteins
. Proteins perform various functions in your body to keep you healthy.
Does DNA tell cells what to do?
DNA contains
the instructions needed for an organism to develop, survive and reproduce
. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Do proteins tell cells what to do?
You obviously know that
proteins do not literally tell the cell what to
do, however they do control its actions. … The proteins would selectively bind to different mRNA strands that code for different proteins, choosing the one it needs to form the protein the cell needs for its processes.
What determines what a cell will do?
The nucleus
determines how the cell will function, as well as the basic structure of that cell.
How a cell can make a difference?
Different cells have different jobs to do. Each
cell has a size and shape that is suited to its job
. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs.
What makes a cell unique?
All of a person's cells contain the same set of genes (see more on genes). However, each cell type “switches on” a different pattern of genes, and this determines which
proteins
the cell produces. The unique set of proteins in different cell types allows them to perform specialized tasks.
Why is DNA the code of life?
The DNA code
contains instructions needed to make the proteins and molecules essential for our growth, development and health
. … The cell reads the DNA code in groups of three bases. Each triplet of bases, also called a codon, specifies which amino acid
?
will be added next during protein synthesis.
What does DNA provide the code for?
The DNA code contains
instructions needed to make the proteins and molecules essential for our growth, development and health
. … The cell reads the DNA code in groups of three bases. Each triplet of bases, also called a codon, specifies which amino acid? will be added next during protein synthesis.
What is your body's fastest growing organ?
The fastest-growing organ in the human body is
the skin
. The human skin is also considered as the largest organ of the integumentary system.
How do you know if your body needs more protein?
Swelling
. One of the most common signs that you're not getting enough protein is swelling (also called edema), especially in your abdomen, legs, feet, and hands. A possible explanation: The proteins that circulate in your blood — albumin, in particular — help keep fluid from building up in your tissues.
What are the 3 types of protein?
The three structures of proteins are
fibrous, globular and membrane
, which can also be broken down by each protein's function. Keep reading for examples of proteins in each category and in which foods you can find them.
What makes proteins in a cell?
Ribosomes
are the sites in a cell in which protein synthesis takes place. … Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis — the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.
What is inside a cell?
Inside a Cell
A cell consists of
a nucleus and cytoplasm
and is contained within the cell membrane, which regulates what passes in and out. The nucleus contains chromosomes, which are the cell's genetic material, and a nucleolus, which produces ribosomes. … The endoplasmic reticulum transports materials within the cell.
What are the 7 functions of a cell?
The seven processes are
movement, reproduction, response to external stimuli, nutrition, excretion, respiration and growth
.
Why the cell is very important for us?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body,
take in nutrients from food
, convert those nutrients into energy, and carry out specialized functions. … Cells have many parts, each with a different function.
