Living
What is the smallest form of life?
What is an organelle?
A small part of a cell that has a function.
What are the 3 components that make up all cells?
DNA, cytoplasm and cell membrane
Plants near a window begin to lean towards the window. Provide a claim.
Plants grow toward sunlight.
Why does the DNA always remain in the nucleus?
The nucleus protects the DNA and the DNA does not want to be damaged.
What do all living things possess that nonliving things do not?
cells
Are organelles living or nonliving? Explain
Organelles are nonliving. The smallest form of life is a cell.
How does oxygen from our lungs get delivered to the rest of our bodies?
The blood cells collect oxygen at the lungs and deliver it to the rest of the body.
Provide a reasoning as to why plants lean toward a window.
What is transcription?
The process of going from DNA to RNA.
Provide 2 examples of unicellular organisms.
bacteria, baker's yeast, amoeba, protozoa, euglena
What produces proteins in a cell?
The ribosomes make the proteins for a cell.
What cells are you using right now to think about this question?
We use neurons to think about ideas.
A magnet can hold 20 paperclips. However, when the magnet is heated to 80 oC it can only hold 8 paperclips. Provide a claim.
Heating a magnet reduces its magnetic strength.
What are 2 differences between DNA and RNA?
DNA is made of two strands. RNA is made of one strand. DNA uses thymine while RNA uses uracil.
A virus is nonliving. Although a virus contains DNA, it does not have a plasma membrane or cytoplasm.
What organelle provides energy for the cell?
The mitochondria makes energy for the cell.
If a virus or bacteria attempt to infect us, what cells will protect us?
Immune cells protect us from infections.
Fresh water freezes faster than saltwater. What is the freezing point of water? Provide a claim.
The freezing point of salt water is 0 oC. A claim is the addition of salt to water slows down the freezing process.
Which strand of DNA is used for transcription? Where are the 5' and 3' ends on this strand?
Transcription uses the bottom strand of DNA. In this strand the 3' is on the left and 5' is on the right.
Provide an example of 3 multicellular organisms. 1 photoautotroph, 1 herbivore and 1 apex predator
lots
Where is the DNA in eukaryotic cells and how does it send messages to make protein?
In eukaryotic cells the DNA is in the nucleus and it sends message by making RNA through transcription.
Name 3 parts of a bacteria and their function.
DNA is the instructions, ribosomes make protein, flagella allow movement, cell membrane controls what enters and exits the cell, pilus is used to share DNA
How does a hammer and a feather fall on the moon compared to the Earth? Provide a reasoning for any differences. You must use science vocabulary.
On the moon a hammer and a feather fall at the same time on Earth the hammer falls faster. The difference is the Earth has an atmosphere. The atmosphere contains gas molecules (oxygen, nitrogen) that slow down the feather.
5' - A - A - T - T - C - G - C - C - T - 3'
3' - T - T - A - A - G - C - G - G - A - 5'
Perform transcription and make sure you add the 5' and 3' to your RNA.
5' - A - A - U - U - C - G - C - C - U - 3'