Origin and Characteristics of Life
Cells
DNA & Genetics
Evolution, Fossils, and Kingdoms of Life
Chemistry of Life
100

True or False: Western science has a definite answer about how life first began

False, as we saw in the “NOVA Origins: How Life Began” video there are many different hypotheses about how life started and we still don’t know for sure

100

True or False: Organisms need to have at least 2 cells to be considered alive

False: Unicellular organisms only have 1 cell

100

What is the difference between the two types of reproduction?

In Asexual reproduction, there is only one parent and the offspring is genetically identical (essentially a clone); in Sexual reproduction there are two parents and the genetics of the offspring are a combination of the two parents

100

What is the difference between a heterotroph and an autotroph?

Autotrophs produce their own energy, whereas heterotrophs depend on other food sources for energy

100

What are the 3 subatomic particles that make up atoms?

Protons, neutrons, electrons

200

What is metabolism?

Chemical reactions in the body of an organism that change food into energy

200

Why is the front office like the Nucleus?

Because it provides instructions for the rest of the cell

200

In the strawberry lab, what happened when you added ethanol to your strawberry extract?

The DNA came out

200

True or False: Fossils provide evidence for evolution by showing the characteristics of early life forms

True

200

What are the 2 elements that make up a water molecule?

Oxygen and hydrogen

300

True or False: Charles Darwin proposed the theory of natural selection.

True

300

What are the 3 main principles of cell theory?

All living things are made of cells; cells are the basic units of structure and function; all cells come from preexisting cells 

300

True or False: DNA is contained in the golgi apparatus of cells

False. It is in the nucleus

300

Why did the gummy bear in salt water get smaller and the bear in tap water get bigger?

The bears in tap water absorbed water through the process of osmosis, whereas the bears in salt water lost water (through the same process).

300

What does the atomic number of an element tell you?

The number of protons

400

What are two differences between asexual and sexual reproduction? 

Asexual reproduction is only 1 parent, sexual reproduction is 2 parents

In asexual reproduction offspring are genetically identical to their parent, in sexual reproduction their genetics are a combination of their parents' genes

400

What are two structures that are found in plant cells but NOT animal cells? 

Chloroplasts, cell walls, central vacuole 

400

What is the structure of DNA called?

Double helix
400

How did the "Bean Lab" demonstrate natural selection of predators?

The different utensils were different types of predators and teams that got the most beans increased in population while the others went extinct

400

What subatomic particle orbits the nucleus and can exchange or share among atoms?

Electrons

500

How does the human body maintain temperature homeostasis ?

Sweating when hot and shivering when cold
500

What part of the cell was demonstrated in the bubble lab and why did we use bubbles to represent this structure?

The cell membrane, the cell membrane is similar to bubbles because it is flexible and fluid and both bubbles and cell membranes are made of 2 layers of phospholipid molecules- 1 end is hydrophilic and 1 end is hydrophilic

500

Cells in the human body are diploid and contain ___ copies of each chromosome whereas gametes (sperm and egg cells) are haploid contain only ___ copy

2 and 1

500

In the fossil record, what evidence suggests the evolution of organisms over a long time span?

Simple, gradually more complex fossils progressing to diverse organisms

500

How many atoms are in the molecule C6H12O6?

24