Read the following statements and answer true or false . _____ Cells Composed of
ID: 3508434 • Letter: R
Question
Read the following statements and answer true or false.
_____ Cells Composed of chemicals and structures, make up all living things, and vary in size and shape.
_____ Cells Work together to allow for proper functioning of processes necessary for life.
_____ Every cell in the human body contain Almost all human cells contain a nucleus, organelles, cytoplasm and a cell membrane.
_____ The plasma membrane acts as a protective covering, maintains the cell’s integrity and allows it to survive.
_____ Osmosis, filtration, facilitated diffusion, endocytosis and exocytosis are examples of passive transport mechanisms.
_____ Diffusion is when a substance moves from high concentration to low concentration (down the concentration gradient).
_____ Refering to osmotic pressure: water tends to travel across the plasma membrane from areas that have a high concentration of a solute to a lower concentration until the concentration is equal on both sides.
_____Cystic Fibrosis and Diabetes Mellitus are examples of passive transport disorders.
_____Ribosomes are the site for production of enzymes and other proteins needed for cell repair.
_____Mitochondria is referred to as the “power house of the cell” and provides up to 95% of the body’s energy needs for cellular repair, movement and reproduction.
_____Lysosomes have a pH of 7 and contain powerful enzymes that clean up waste from the cytoplasm.
_____ Mitosis is the process of cellular reproduction and the process of sorting chromosomes so the new cell gets all the genetic material.
_____Organs are groups of specialized cells that are similar in structure and that perform common functions.
_____Skin, lining of the mouth, bladder, lungs, and blood vessels are examples of epithelial tissue.
_____Simple epithelium tissues are a single layer of cells.
_____A basement membrane is located directly beneath the cells of connective tissue and is a supporting non-cellular layer.
_____Connective tissue Support the softer organs of the body against the forces of gravity.
_____Muscle tissue consists of cells that are specialized to shorten and contract resulting in movement of some kind.
_____Skeletal tissue and cardiac tissue are examples of connective tissue.
_____Nervous tissue consists primarily of cells that are specialized for generating and transmitting electrical impulses.
_____Serous, mucous, synovial and cutaneous are examples of tissue membranes.
Explanation / Answer
1) true: the Cells are Composed of chemicals and structures, make up all living things, and vary in size and shape.
2) TRUE : 7.5 trillion cells in the human body cells Work together to allow for proper functioning of processes necessary for life. such as respiration digestion moment etc
3)TRUE: Every cell in the human body contain Almost all human cells contain a nucleus, organelles, cytoplasm and a cell membrane except RBC will be lack of nucleus
4) TRUE The plasma membrane acts as a protective covering, maintains the cell’s integrity and allows it to survive. it is the outer boundry of the cell. it is surrounded by the fluid network called two layes of phosphate
5) FALSE: Osmosis, filtration, facilitated diffusion, endocytosis and exocytosis are examples of passive transport mechanisms. osmosis will occure from low concentration to high concentration where as facilitated diffusion molecules moving down their concentration endo and exo was examples of active transport
6) TRUE : Diffusion is when a substance moves from high concentration to low concentration (down the concentration gradient). example facilitated diffusion
7) FALSE: osmotic pressure: it stops the inward flow of the pure solvents to flow into the cell
8) True : Cystic Fibrosis and Diabetes Mellitus are examples of passive transport disorders.
9) TRUE: Ribosomes are the site for production of enzymes and other proteins needed for cell repair. and also for reproduction
10) TRUE : Mitochondria is referred to as the “power house of the cell” and provides up to 95% of the body’s energy needs for cellular repair, movement and reproduction.
11) Lysosomes have a pH of 4.5 to 5.0 and cystole having a pH of 7.2 and contain powerful enzymes that clean up waste from the cytoplasm.
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