Formative_DE_LE_Unit2

Last updated over 2 years ago

16 questions

2.1 Energy of Life

2.2 Photosynthesis

2.3 Cellular Respiration

2.4 Nutrient Cycles

2.5 Mechanical and Chemical Weathering

2.6 Erosion and Deposition

Formative_DE_LE_Unit2

Last updated over 2 years ago

16 questions

2.1 Energy of Life

Classify the following as either carbohydrates or other organic molecules by dragging them to the correct box.

glucose
starch
albumin
cholesterol
glycogen
fructose
testosterone

Carbohydrates
Other organic molecules

If a female lion runs a distance of 469.2 meters while chasing an antelope, how many millimeters did she run?

The two main processes organisms use to make energy are photosynthesis and cellular respiration. Match the following terms or processes with the best definition.

Draggable item		Corresponding Item
oxygen is absent		where cellular respiration takes place
chloroplasts		where photosynthesis takes place
mitochondria		the first stage of respiration
oxygen released		taken in through leaves
carbon dioxide		lactic acid or alcohol from pyruvate
glycolysis		by product of water breakdown

The conversions of energy involve many chemical reactions taking place within an organism or the environment. What is the term for the energy needed to begin one of these reactions?

Life requires energy to exist. Connect the life processes to the reasons they consume energy.

Draggable item		Corresponding Item
Breathing		Polymerization of nucleic acids require energy to break chemical bonds
Dreaming		Production of digestive enzymes requires energy to break bonds in proteinst
Replication of DNA		Contraction of the diaphragm uses energy to move muscle fibers
Digesting food		Active transport uses energy to produce chemical gradients across neurons

A rollercoaster car moves from left to right as shown. The car starts out with high velocity as it is launched at the gate and no additional energy is provided during the part of the roller coaster shown. Determine whether the car is gaining or losing kinetic and potential energy at each part of the rollercoaster.

Draggable item		Corresponding Item
First Law of Thermodynamics		Energy cannot be created nor destroyed
Second Law of Thermodynamics		Entropy of a system cannot decrease
Third Law of Thermodynamics		The point at which the thermal energy of molecules is zero is when atoms have ceased moving.

Classify the following statements for if they best fit an endergonic reaction or an exergonic reaction.

Require a net input of energy
Release energy into the surroundings
Change in free energy is positive
Change in free energy is negative
Breakdown of food molecules
Building ATP

Endergonic Reaction
Exergonic Reaction

Electrons can be moved from a lower energy state in one atom to a higher energy state in another atom; this serves to _______ energy. Electrons can also move from higher energy states in one atom to lower energy states in another, thus _______ energy. The movement of electrons from one atom to another changes the _______ number of both atoms. Any chemical reaction that changes the oxidation number of atoms is called a _______ reaction.

The term redox is a combination of the terms reduction and oxidation. _______ is the gain of electrons, which decreases the _______ state of the atom or ion.

Determine whether each change in the fast carbon cycle would increase or decrease atmospheric carbon. Drag each change into the correct row.

less solar energy
more green plants
less water
fewer decomposers
more animals

Increase Atmospheric Carbon
Decrease Atmospheric Carbon

2.2 Photosynthesis

Classify some of the following as a product or a reactant in the process of photosynthesis.

carbon dioxide
oxygen
glucose
water

Reactants
Products

_______ in a plant absorbs and transfers energy from most visible waves of light from the _______, except green and yellow.

Read the terms below. Read the possible definitions and separate the incorrect definitions from ones that correctly relate to the terms. Connect the definition to its correct term.

Draggable item		Corresponding Item
autotroph		a substance essential for the growth and maintenance of life
carbon dioxide		primary pigments responsible for the absoption of light energy in the process of photosynthesis
cellular respiration		a conversion of light energy into chemical energy
chlorophyll		a reactant in the process of photosynthesis
nutrients		a series of metabolic processes where chemical energy is released to produce ATP
photosynthesis		an organism capable of synthesizing its own food from inorganic sources
chloroplasts		the location in plants that holds chlorophyll and where photosynthesis takes place

Determine whether each statement describes photosynthesis or cellular respiration or both.

Reactions include C6H12O6 (glucose) and H2O (water)
Requires oxygen as a reactant
Requires carbohydrates as a reactant
Requires carbon dioxide as a reactant
Produces oxygen as an end product
Produces carbohydrates as an end product
Produces carbon dioxide as an end product
Involves ATP
Releases energy
Uses energy

Photosynthesis
Both Photosynthesis and Cellular Respiration
Cellular Respiration

Scientists categorize plants into two groups: C3 and C4 species. The C3 species are temperate or cool-season plants. The C4 species are tropical or warm-season plants. Based on the graph below, choose the best words or phrases to complete the summary comparing the data about the two types of plants.

In comparing these two species, photosynthesis increases more rapidly in the presence of carbon dioxide for __________ plants. The C4 species reaches a peak rate of photosynthesis at __________and the C3 species reaches a peak rate of photosynthesis at __________. This means that carbon dioxide concentrations in excess of __________ will not increase the rate of plant growth or carbohydrate production for either species. The tropical C4 species grows more quickly. Since the photosynthesis reaction requires an equal number of CO2 and __________, this is adaptive for tropical environments.

2.3 Cellular Respiration

2.4 Nutrient Cycles

2.5 Mechanical and Chemical Weathering

2.6 Erosion and Deposition