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biology unit 2
Terms in this set (34)
How are compounds, elements and atoms related?
Compounds are made up of elements and elements are made up of atoms.
Give an example of an element
Oxygen-O, Iron-Fe, Hydrogen -H
Write three 3 compounds in the photosynthesis equation.
Carbon dioxide (CO2), water (H2O), and glucose (C6H12O6)
How is the plant able to obtain each reactant for the process of photosynthesis? Water-
enters the roots of the plants and travel up to the leaves
How is the plant able to obtain each reactant for the process of photosynthesis? carbon dioxide-
enters through the stoma of the leaves
How is the plant able to obtain each reactant for the process of photosynthesis? Light energy-
Light energy— from the sun is trapped by chlorophyll pigments.
Identify the 2 products of photosynthesis.
glucose and oxygen
Which of these products is considered to be a waste product of photosynthesis?
What happens to the oxygen that is produced as a result of photosynthesis?
Some of the oxygen is used by the plants to carry out cellular respiration. Excess oxygen is released into the atmosphere.
True or False: Photosynthesis occurs in green plants.
In plants, photosynthesis takes place inside an organelle called a
True or False: Photosynthesis occurs in animals and humans.
Why do plants need to carry out the process of photosynthesis?
Plants use the process of photosynthesis to make its own food. The plants will use the food to grow and develop.
Why is photosynthesis also important for people and animals?
The process of photosynthesis provides oxygen to human and animals as well as food and natural resources.
Plants appear green because chlorophyll___________green light.
Plants get the energy they need for photosynthesis by absorbing ___________
Glucose molecule stores the sun's __________ energy as chemical energy in food.
The two stages of photosynthesis are the light reactions and the ________ cycle.
Write the chemical equation for cellular respiration.
C6H12O6 + 6O2----------------------------> 6CO2 + 6H2O+ 38 ATP
What are the reactants for cellular respiration?
What are the 3 products of cellular respiration?
6 Carbon dioxide molecules (6CO2), 6 water molecules (6H2O), and about 38 ATP energy molecules
What is the energy currency of the cell?
True or False: Plants and animals carry out the process of cellular respiration.
In plants and animals, cellular respiration takes place inside an organelle called a
What do you notice about the process of photosynthesis and cellular respiration?
The products of photosynthesis are the reactants of cellular respiration.
The products of cellular respiration are the reactants of photosynthesis.
Why do humans need oxygen?
Oxygen is needed to burn the fuel [sugars, proteins, and fatty acids] in our cells to produce ATP energy.
Why are mitochondria called the powerhouses of the cell?
These structures change food like glucose, proteins, and fats into ATP energy.
How is the structure of a mitochondria perfect for its function?
Mitochondria have a lot of surface area to product ATP energy.
True or False Cells that require more energy have more mitochondria.
Give an example of a cell that requires a lot of energy.
Muscle cells like those in the heart, brain, liver, and legs.
State the law of conservation of matter.
Law of conservation of matter states that matter cannot be created or destroyed. Matter can change forms.
EX. Water can be a solid, liquid or a gas.
How does photosynthesis show the law of conservation of energy?
The light energy of the sun is changed to the chemical energy stored in the glucose molecule. Additionally, you have the same number of carbon atoms, hydrogen atoms, and oxygen atoms in the reactants and the products.
Cellular respiration shows the law of conservation of energy by changing the chemical energy in glucose into another form of chemical energy called
According to the Law of conservation of matter, if the reactants of photosynthesis have 6 carbon atoms, how many carbon atoms will be in the produced in the product?
6 carbon atoms
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