Weebly Website for OHVA
Internet Service Provider (ISP) Reinbursement
Mrs. Ulry's Digital Scrapbook
Archive of Weekly Agendas
Contact Mrs. Ulry
Letter Codes in Gradebook
Understanding YOUR Gradebook
Unit1: Science of Biology
202B U2 Dichotomous Key
202B U2 Dichotomous Key Day2
202B U4 Succession Day1
202B U4 Succession Quiz
202B U4 Nitrogen Cycle Exploration and Quiz
202B U4 Carbon Cycle
202B U4 Carbon Cycle D2
202B U4 Carbon Cycle Quiz
202B U4 Modeling Ecosystems
How to Attend...
Frequently Asked Questions (FAQs)
Ohio Graduation Test (OGT)
OGT Video Review
2- The Chemistry of Life - I: BIOLOGY TEST (1.01-2.14)
When sitting and watching a fire, it is easy to get the idea that it is alive. It moves dynamically, dancing and sending sparks. A single spark can blow to a different location and start a whole new fire. It is able to spread across a surface and move about from combustible object to combustible object. It consumes many materials, like wood, converting them into ash and other byproducts. It needs oxygen, as though it were breathing.
Question: You are debating whether or not fire is a living thing. You are arguing for the positive, that is, fire IS alive. Be sure to address at least two different characteristics of life. Use evidence from the passage above to support your side of the debate. (Points : 4)
Identify which characteristic of living things is being described in each of the statements below.
(Points : 3)
1 : Green plants produce their own food through the process of photosynthesis.
2 : A sea worm drops its tail and the tail becomes a new worm.
3 : It is thought that birds and dinosaurs once shared a common ancestor.
4 : A flower opens up in the morning at sunrise and closes up in the evening at sunset.
5 : Stomata’s are small openings present on plant leaves. On a hot dry day, the stomata remains closed to reduce the loss of water.
6 : A caterpillar hibernates in a cocoon and emerges as a butterfly.
Growth and Development.
Which of the following statements about cells is TRUE? (Points : 3)
All cells are visible to the naked eye.
All cells contain cytoplasm surrounded by a cell wall.
All cells contain a nucleus.
All cells arise from preexisting cells.
Identify 3 ways in which viruses differ from cells. (Points : 3)
Viruses are larger than cells.
Viruses cannot reproduce themselves, but cells can.
Viruses do not have membrane coverings around their organelles.
Cells grow and require energy, but viruses do not.
Cells contain genetic information in the form of DNA,
but viruses do not carry their own genetic information.
A plant's cells develop to form three types of tissues. The dermal tissue covers the outer plant surface, the ground tissue forms the plant’s body while the vascular tissue forms transport channels. Which characteristic of living things is being described here? (Points : 3)
Living things grow and develop.
All living things are made of cells.
Living things respond to their environment.
Living things resemble one another.
The picture below shows different levels of cellular organization in a cat.
Level 5 best represents ... (Points : 3)
A student wrote the following points about a level of organization in human body.
It is one of the complex levels.
This level can function independently.
This level helps to maintain homeostasis in the body.
Which level of organization is being described here? (Points : 3)
A scientist conducted an experiment to study the effect of a pesticide on fruit flies. He kept 10 fruit flies in jar A containing no pesticide and 10 fruit flies in jar B containing pesticide.The results are shown in the graph below.
Which of the following variables is independent in this experiment? (Points : 3)
Number of jars used in the experiment.
Presence of Pesticide.
Survival rate of the fruit flies.
A researcher is using a compound microscope with an eypiece magnification of 10X. He is using the high power magnification (100X) to examine the mitochondria of liver cells. How many times are the liver cells magnified? (Points : 3)
How is an organic compound different from an inorganic compound?
(Points : 3)
Photosynthesis is responsible for organic compounds.
Organic compounds come only from nonliving things.
Inorganic compounds contain oxygen atoms and hydrogen atoms.
Organic compounds contain carbon atoms bonded to other atoms.
How are hydrogen bonds different from covalent bonds?
(Points : 3)
Hydrogen bonds are weaker bonds that form from molecules that have a slight positive charge on one side and a slight negative charge
on the other.
They are organic.
The resulting compounds contain carbon.
They have valence electrons.
Which characteristic do glycogen and starch share?
(Points : 3)
Both are storage forms of glucose.
They are the most energy-rich organic molecules.
They are proteins.
Both are difficult to digest.
Which statement best relates to how the structure of a lipid influences the lipid’s function?
(Points : 3)
A phospholipid has a charged head and an uncharged tail.
A lipid is made up of a long chain of phosphorus molecules.
The ends of the lipid are attached to each other.
Lipids contain fatty acids and glycerol.
When sugars polymerize (come together) in long chains, they may form any of the following EXCEPT ----. (Points : 3)
Sugars, fats and proteins are made from organic molecules. The organic molecules are held together by ---- bonds. (Points : 3)
Which of the following is an example of an organic chemical compound? (Points : 3)
Carbon Dioxide - CO
Glucose - C
Sodium Chloride - NaCl
Sulfur Trioxide - SO
When a bond results from the transfer of electrons between atoms, it's a(n) --- bond that has formed. (Points : 3)
Which 6 elements make up most of the mass of living cells? (Points : 3)
Most organisms break down sugar to produce usable energy through the process of (Points : 3)
Fish bodies vary with the habitat the fish live in as well as the needs that the fish have. Bottom-dwelling fish are often flattened and camouflaged. Open-water predators often have large mouths and bullet-shaped bodies. Reef-dwelling fish are often shaped like rudders for fast swimming and have small mouths for grazing. Schooling fish that eat plankton are often streamlined and bullet-shaped with large toothless mouths.
Based on the previous description, which type of spadefish is best represented by the picture shown?
(Points : 3)
Coral Reef Dweller