Vocabulary
What is the definition of the word 'Cell'?
the smallest unit of life
What is an autotroph? provide an example.
produces its own food, an example would be a plant
I am small, have no nucleus, am ALWAYS unicellular, and have a flagellum. Who am I?
A prokaryotic cell
Who observed the first cell and gave them their name "the cell"?
Robert Hooke
What does a prokaryotic cell not have?
A nucleus or membrane bound organelles
What is the definition of the word "autotroph"?
an organism that can produce its own food using light, water, carbon dioxide, or other chemicals (for example: using photosynthesis)
what is a heterotroph? provide an example.
an organism that eats something else (plant or animal) to gain energy. An example would be an elephant or a lion.
I am big; I live in plants, animals, and humans; I can be multicellular or unicellular; I am complex and I have a nucleus with membrane bound organelles. Who am I?
A eukaryotic cell
Which scientist concluded that all new cells come from preexisting cells and they do not appear from spontaneous generation?
Rudolf Virchow
Which 3 scientists got into an argument over the creation or appearance of cells?
Rudolph Virchow, Theodore Schwann, and Matthias Schleiden
What is the definition of the word "heterotroph"?
an organism that eats plants or animals for energy and nutrients
A manta ray is an example of a: (heterotroph or autotroph), explain your reasoning
A manta ray is a heterotroph; they eat plankton to gain energy
I am multicellular, I have a nucleus, I have a cell wall, and I make my own food. What am I?
I am a eukaryotic cell
A student observing a sample of cheek cells noticed that all of the cells were identical. According to cell theory, which statement below explains why these cells are identical?
A) All of the cells come from the same location in the body.
B) All of the cells come from preexisting cells.
C)All of the cells lack a cell wall.
D) All of the cells contain the same genetic material.
B) All of the cells come from preexisting cells.
What are the 3 parts of cell theory?
1. All living things are made of cells
2. The cell is the smallest unit of life
3. All cells come from pre-existing cells
What is the definition of the word "eukaryotic"?
a cell that has genetic material and other organelles that are surrounded by a membrane
Organism A is an organism that must feed on other organisms in order to survive
Organism B is an organism that is tall and creates its own food from the environment around it.
What is organism A? What is organism B? (is it an autotroph or a heterotroph?)
Organism A is a heterotroph
Organism B is an autotroph
I am unicellular, have no nucleus, have no cell wall, and I do not make my own food. Who am I?
I am a prokaryotic cell
4 scientists is looking at a flower, a fly, and a mushroom. Based on the following statements from different scientists, which scientist is right?
Scientist A: The flower, fly, and mushroom can all reproduce by spontaneous generation.
Scientist B: The flower, fly, and mushroom can all photosynthesize.
Scientist C: Cells are the basic unit of structure for the flower, the fly, and the mushroom.
Scientist D: The flower, fly, and mushroom are all made up of the same kind of atoms.
Scientist C is correct! Cells are the basic unit of structure for the flower, the fly, and the mushroom.
A population of beetles lives in a forest. Most of the beetles are green, but some are brown. Over time, the number of brown beetles increases.
What most likely caused this change?
F) The beetles chose to change their color
G) The brown beetles and green beetles stopped reproducing
H) A predator ate more green beetles because they were easier to see.
I) The green beetles migrated away.
H) A predator ate more green beetles because they were easier to see
What is the definition of the word "prokaryotic"?
a cell that does not have genetic material or other organelles that are surrounded by a membrane
Organism X produces its own food using chemicals from the vent.
Organism Y absorbs nutrients from the dead matter around it.
Both organisms live in deep-sea hydrothermal vents, where the sunlight does not reach.
What is organism X and what is organism Y? (Autotroph or Heterotroph?)
Organism X is an autotroph
Organism Y is a heterotroph
I can be unicellular or multicellular, I have a nucleus, I do not have a cell wall, and I do not make my own food. What am I?
Which of the following is an example of a variation that could be a
disadvantage in a changing environment?
A) A polar bear with thick fur in a warming climate
B) A rabbit with large ears in a hot environment
C) A bird with a long beak in an area with deep flowers
D) A cactus with spines in a dry desert
A) A polar bear with thick fur in a warming climate
Scientists were observing rabbits in the wild for over 20 years. There were white-furred rabbits and brown-fur rabbits. Over the course of 20 years the white-furred rabbits' population increased while the brown-furred rabbits decreased.
Based on this information, what would be the most accurate explanation for the population changes for each rabbit? Select TWO answers.
The white-furred rabbits _____________.
The brown-furred rabbits ____________.
A) White rabbits had better eyesight, allowing them to see predators first.
B) Brown rabbits migrated to a warmer area to survive.
C) White fur provided camouflage, making these rabbits less visible to predators.
D) The environment became snowy, making brown rabbits easier to spot by predators
E) Predators began to only hunt brown rabbits because they preferred them as food.
F) White rabbits were stronger and more aggressive, allowing them to outcompete brown rabbits.
The white-furred rabbits _C)White fur provided camouflage, making these rabbits less visible to predators_________.
The brown-furred rabbits _D) The environment became snowy, making brown rabbits easier to spot by predators_________.