Biology set 5 quiz
List the three parts o the Cell theory:
1.all living things are composed of a cell 2. cells are the basic unit of structure and function in living things. 3. all cells are produced from other cells.
What is the magnification of your microscope at low power?
100x
Describe the function of 2 of the following parts of a Microscope.
1:ocular lens-magnification 2:objective lens-magnification 3:iris diaphragm-regulates the light passing thru the specimen. 4:mechanical stage-moves a slide smoothly around the stage. 5:fine focus knob-allows you to do careful, microscopic focusing. 6:revolving nose piece-allows you to rotate all the objective lenses into viewing position.
What is basic function of cell membrane.
Control of movement of materials in and out of cell. Separation of the extracellular environment from the intracellular environment.
what are the 3 major molecules found in an animal cell membrane.
The three major types of lipids found in the cell membrane are phospholipids, glycolipids, and cholesterol molecules.
How many Amino Acid in Protein and how many are essential?
There are 20 Amino Acid, but only 9 of them are essential for us.
What does Working Distance mean in microscopy?What measurement did your group get for low power?
Working distance means the distance between the end of the objective lens and the specimen when the specimen is in sharp focus. [WD] gets shorter as the magnification increase. Most groups were getting WD values around 5mm for low power.
For each of thee molecules, indicate if you think it si a carbohydrate[C], a lipid[L], an amino acid/protein[p] or a nucleotide[N]
[L]- C17H35COOH, [C]-C12H22O12, [P]-C2H5O2N, [N]- C10H16O13N5P3
Name 2 groups [kingdoms] of Unicellular organisms and 2 groups of multicellular organisms:
a: Unicellular: Monera[bacteria] and protista[protists] b: Fungi, plantae or Animalia
List the three parts of the cells Theory
A; The cell is the fundamental unit of life;all organisms are made of cells B:All the characteristics of life arise from cells activities C:All cells are formed from other cells by cellular reproduction.
Why is APT such an important molecules in human cells?
ATP is an Energy- carrier molecule that is able to provide the right amount of chemical bond energy used by most cellular "machines".
list one example of A Human Synthetic/combination/anabolic reaction type:
Amino Acids=Proteins 3fatty Acids+glycerol=Triglyceride Many Glucose=Amy lose Many Glucose=Glycogen Glucose+Ga lactose=Lactose
What exactly is an Enzyme? Why are they so important in human cells.
Enzymes are protein catalyst responsible for organizing and mediating all the important chemical reactions in cells.
Name the 2 organic functional group in glycine:
Glycine is the simplest AA;it is made of an amino group, and Acid[carboxyl]group and 2 Hydrogens bonded to the central Carbon.
What is role of Monomer Nucleotide in the body?
Monomer Nucleotides are used to Build Polymers and to Store and Energy.
What are the three basic parts of a nucleotide?
Nitrogen Base+5-carbon+Phosphate Group[s]
Describes on Function of Nucleic Acids like DNA.
Nucleic Acids are used to store and transfer genetic information, Nucleic Acids are responsible for organizing and directing protein synthesis.
list one different between the plant cells and animal cells.
Plant cells always have cell wall, often contain chloroplasts Animal cells never have cell wall, never contain chloroplast Animal cells contain centrioles, plant cells do not. animal cell membranes contain cholesterol,plant cell membranes do not.
Describe one difference between Prokaryotic and Eukaryotic cells.
Prokaryotic cells are very simples internally with no membranous organelles,not even a Nucleus! Eukaryotic cells have many membranous organelles and a conspicuous Nucleus.
Describe one important Function of proteins in the human body?
Proteins are important structural molecules-they are used to build major parts of animal bodies and important parts of plant bodies;Keratin,Collagen++ Proteins are important functional molecules- they perform many important jobs in cells, Hemoglobin,Insulin,DNA polymerase.
list and describe two things proteins can do when embedded in an animal cell membrane:
Proteins embedded in the membrane play important roles in helping the cell communicate with its environment, including with other cells, and with transporting materials into and out of the cell.
List one Examples of a Human reaction of the decomposition/breakdown/catabolic types.
Proteins= Amino Acids Triglyceride=3fatty Acids+glycerol Amy lose=Many Glucose Glycogen=Many Glucose Lactose=Glucose+Ga lactose
In one or two sentence, Explain the Central Dogma Of Modern Biology:
The Central Dogma Of Modern Biology explains that DNA is molecules that contains proteins recipes,but DNA is stuck in the nucleus.RNA molecules carry a copy of the protein recipe out into the cytoplasm and coordinate the production of proteins in the cytoplasm.
What is cytosol of the cell and what molecules make it up?
The cytosol is the liquid/jelly-like part of the cytoplasm:there-it is made of water,Albumin protein, ions, the CLPN molecules and gases like O2,and CO2.
What is the primary structure of proteins?
The primary structure of a protein is the unique sequence of amino acids chained together to form that specific protein.
Briefly but precisely describe what happens in the ATP discharge/recharge reaction.
When you eat lunch, many complex chemical reactions occur. But in essence all you are doing is "recharging" your ATP, but while you are doing some work at that time ATP break down into ADP that is uncharged.
