Cells Theory
What is the basic unit of life?
Cells
Name one organelle that eukaryotic cells have but prokaryotic cells do not.
Nucleus, mitochondria, or endoplasmic reticulum
What does "unicellular" mean?
Made up of one cell
What do we call an organism that makes its own food?
Autotroph
What is a trait?
What is a characteristic or feature of an organism
Who was the plant guy who discovered plant cells?
Matthais Schleiden
Bacteria are examples of which type of cell?
Prokaryotic cells
Give one example of a multicellular organism
human, tree, fungus or dog
What do heterotrophs need to get energy?
Food from other organisms by eating them
What is the term for a characteristic that increases an organism's chance of survival in its environment?
Adaptation
What objects let others see a microworld?
Microscopes
True or False: Prokaryotic cells are more complex than eukaryotic cells.
False
True or False: All the cells in a multicellular organism do the same job.
False
Give one example of an autotrophic organism.
Plant or algae
Describe: How does genetic variation help a population in a changing environment?
Genetic variation gives some individuals traits that may help them survive new conditions, like climate change or new predators.
Name one of the parts of cell theory?
1. Cells are the basic units of life
2. All living things are made from one or more cells
3. All cells come from pre-exisiting, living cells
Which two main cell structures are found in both prokaryotic and eukaryotic cells?
What are the cell membrane and cytoplasm?
Why are multicellular organisms able to grow larger and be more complex than unicellular organisms?
Their cells can specialize and perform different functions
Which type of organism would be found at the beginning of a food chain, and why?
What is an autotroph, because it produces its own energy and provides food for other organisms?
Give an example of how a variation in a trait can help an animal survive in its environment
thicker fur coat helping animals stay warm in cold climates.
What is the correct answer:
How did the development of the cell theory change scientists' understanding of living things?
A. It proved that only animals are made of cells.
B. It showed that living things are made of many different materials, not just cells.
C. It helped scientists realize that all living things are made of one or more cells and that cells carry out basic life functions.
D. It showed that living things do not change over time.
C. It helped scientists realize that all living things are made of one or more cells and that cells carry out basic life functions.
Explain one reason why eukaryotic cells can form multicellular organisms while prokaryotic cells usually cannot.
Eukaryotic cells have specialized structures (organelles) that allow for different cell functions, making complex multicellular life possible.
Compare how a unicellular organism and a multicellular organism get their life functions done (like eating or moving)
unicellular organisms does all life functions within one cell, while multicellular organisms have many cells that work together with specialized jobs
Explain the main difference between how autotrophs and heterotrophs obtain energy, and why that matters in a food chain
Autotrophs make their own energy through photosynthesis or chemosynthesis, while heterotrophs must consume other organisms; this is important because autotrophs form the base of the food chain?
A population of beetles has both green and brown individuals. After several years, mostly brown beetles remain. What is the most likely reason for this change?
What is brown beetles were better camouflaged, so they survived and reproduced more than green ones