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Unit 1 test
Terms in this set (41)
Benefits of being multi-cellular
The organism to be large, a longer lifespan and it can perform more functions
What are the differences between prokaryote and eukaryote cells?
eukaryotes have a nucleus. They also have other membrane structures called organelles.
What are the four levels of organization?
cells, tissue, organs, organ systems, and organisms
the one that is changed by the scientist.
the variable being tested and measured in a scientific experiment
A variable is any factor, trait, or condition that can exist in differing amounts or types.
What are the differences between a plant and animal cell?
additional structures found in plant cells like chloroplasts, the cell wall, and vacuoles.
What are light absorbing substances.
In the step 2 of photosynthesis, ATP and ___________________ are produced.
A substance moves from an area of low concentration to an area of high concentration.
Can happen in living cells.
Diffusion, Osmosis, Active Transport
A substance moves and becomes more evenly spread out.
The movement does not use energy and is caused by the random movement of individual particles.
The movement requires energy from respiration.
Only water is involved in this type of movement.
Water moves from a less concentrated solution to a more concentrated solution.
How is carbon dioxide removed from the cells of the human body?
As the blood flows through the lungs, excess carbon dioxide passes out of the blood and into the alveoli by diffusion. It is then removed from the lungs when we exhale
How does the cell membrane work?
protect the cell from its surroundings. It consists of the lipid bilayer with embedded proteins.
Where can cardiac muscle be found in the human body?
in the walls and histological foundation of the heart, specifically the myocardium.
What does connective tissue do in the human body?
provides a transport system within our body for oxygen and other important substances.
Briefly compare glycolysis and the Krebs Cycle (Respiration). Make sure to include how much energy is produced in each reaction, where do these reactions occur, the main products of each, and if oxygen is present or not.
The pyruvate molecules produced during glycolysis contain a lot of energy in the bonds between their molecules. ... Prior to entering the Krebs Cycle, pyruvate must be converted into acetyl CoA. This is achieved by removing a CO2 molecule from pyruvate and then removing an electron to reduce an NAD+ into NADH.
What are the factors that affect the rate of photosynthesis? How do those factors affect photosynthesis?
limit the speed of light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide.
You have just bought a tropical fish for your freshwater aquarium. Unfortunately, you did not realize that it is a saltwater fish. Using your knowledge of osmosis, explain why this fish will not survive in your aquarium.
Fish will swell from Salt and die
Why does frog blood look different from human blood? How does this help humans?
The biggest difference between human blood cells and frog blood cells is that the red blood cells in the frog have a nucleus as seen by the purple pigment, whereas the human blood cells don't have a nucleus.
How does the cell membrane work?
protects the cell from its surroundings. It consists of the lipid bilayer with embedded proteins.
Name four locations where epithelial tissue can be found
intensive, air sacks of the lungs, kidney, esophagus, respiratory tract
What do the blue spheres represent?
What do the squiggly lines attached to the blue sphere represent?
What do the large purple columns represent?
Which parts are polar? Which parts are non-polar?
The polar part is the hydrophilic head and the non-polar parts are the hydrophobic tail.
the movement of particles from an area of high concentration to an area of low concentration.
The series of molecules that electrons move through is called the __________________ _______________ chain.
NADPH from stage 2 is then used in the ______________ cycle to convert carbon dioxide into glucose.
______________ ___________ is the process where glucose is used to make ATP.
If _____________ is not present the pyruvic acid will then enter ____________________ ______________ fermentation.
Oxygen, lactic acid
Alcoholic fermentation produces ______________ and _________________ ___________________.
ethanol and carbon dioxide
How many ATP are produced during cellular respiration?
Aerobic respiration occurs in the __________________ of eukaryotic cells.
inside of the inner membrane of mitochondria or cytoplasm
First, glucose is broken down into 2 pyruvate in a process called
If ________________ is present the pyruvate then enters the _________________ cycle where NADPH is made.
Finally, NAPH enters the electron transport chain where _____________, our cells' energy source, is made.
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