Cellular Structure
Monomers to Polymer
Photosynthesis and Cellular Respiration
Homeostasis
Ecosystem
100
Name two characteristics shared by all living things.
Made of cells
Obtain and use energy
Grow and develop
Reproduce
Respond to stimuli
Maintain homeostasis
Evolve or adapt over time
100
Which monomer creates the polymers that carry the genetic information?
Nucleotides
100
what are the main products of photosynthesis
glucose and oxygen
100
In your own words, explain what homeostasis means and why it is important for living things.
Homeostasis means keeping the body’s internal conditions—like temperature, water, and sugar levels—stable and balanced even when the outside environment changes.
100
Name 2 limiting factors that would lower the mouse population
less food/ water/ space
More competitors
disease
200
Why is the cell membrane important for the functioning of the cell?
The cell membrane is important because it controls what enters and leaves the cell, helping maintain a stable internal environment (homeostasis) and protecting the cell from harmful substances.
200
Explain why is it important to break down polymer to monomer in living organisms
It’s important to break down polymers into monomers so living organisms can bring them into their cells, use them, build new molecules, and provide energy for life processes
200
Name the 2 reactants of cellular respiration .
oxygen (O2) and glucose (sugar).
200
Giving birth is an example of a _____ feedback mechanism.
postive
200
What are three examples of Symbiosis?
Mutualism, Commensalism, and Parasitism
300
Why do heart muscle cells contain the most mitochondria?
Heart muscle cells contain the most mitochondria because they need a constant and large supply of energy (ATP) to keep the heart contracting continuously without fatigue.
300
Explain why is enzyme so important to living things
Enzymes are important because they speed up and control the chemical reactions that keep living things alive.
300
Cellular respiration requires ____ which is the output of photosynthesis
glucose and Oxygen gas
300
Why does the oxygen level in veins drop during exercise but return to normal after rest, and how does this process demonstrate negative feedback?
During exercise, muscles use more oxygen for energy, causing oxygen levels in the blood to drop; the body detects this change and, through negative feedback, increases breathing and heart rate to restore oxygen levels, which return to normal once activity stops and the body rests.
300
Three types of population dispersion
What are clumped, uniform, or randomly?
400
Come up with two pieces of evidence to explain why viruses are not considered living organisms,
Evidence #1: Viruses are not made of cells.
Evidence #2 Viruses don’t eat or use energy when they’re outside a host.
Evidence #5: When outside of a host, viruses are just tiny particles that don’t move or grow.
400
What is this monomer called?
Amino acid
400
What is the full input and output for photosynthesis?
6CO₂ + 6H₂O (+ light energy) → C₆H₁₂O₆ + 6O₂
400
Why is it important for the body to carefully regulate blood glucose levels?
It’s important for the body to carefully regulate blood glucose levels so cells always have enough energy to function while preventing harmful effects of too much or too little sugar in the blood.
400
Explain the purpose of decomposers and identify where in this food web they will be active.
The purpose of decomposers is to break down dead plants and animals into simpler substances, recycling nutrients like carbon and nitrogen back into the soil for producers to use.
In a food web, they are active at every level, feeding on the remains and waste of all organisms once they die.
500
explain two major differences between plant and animal cells. Describe how these differences help each cell type do its job.
Two major differences between plant and animal cells are that plant cells have a cell wall and chloroplasts, while animal cells do not.
The cell wall gives plant cells a rigid structure to help plants stand upright, and chloroplasts allow them to make their own food through photosynthesis. In contrast, animal cells are more flexible and rely on consuming food for energy, which supports movement and a variety of body functions.
500
Name two factors that can change the structure of enzyme
pH and temperature
500
Why is photosynthesis essential for maintaining oxygen levels on Earth?
Photosynthesis is essential because it uses carbon dioxide (CO₂) and water to produce glucose for energy storage and releases oxygen (O₂), helping maintain Earth’s oxygen levels and remove excess CO₂ from the atmosphere.
500
Diabetes is a disease that affects how the body controls blood sugar.Predict how a person with diabetes’s blood sugar levels might change throughout the day.
A person with diabetes may experience large fluctuations in blood sugar levels throughout the day—rising sharply after eating because their body cannot use or store glucose properly, and dropping too low if they take too much insulin or go too long without food—since their ability to maintain stable glucose through feedback control is impaired.
500
The wolf population only slightly increases while the moose population drastically decreases between 1995 and 1997. What coulf be a good reason explaining this change?
- wolf population grew slowly because it takes time for reproduction and food availability to affect their numbers.
- Disease in deer population