scientific method
Which step of the scientific method involves using your senses to gather information about the world, which leads to a question?
what is a observation?
What are the three primary products produced at the end of the cellular respiration process?
Carbon Dioxide, Water, and ATP
What are the three main components of a DNA nucleotide?
A sugar, a phosphate group, and a nitrogenous base
Which organelle is often referred to as the 'brain' or control center of the cell because it contains the genetic material?
nucleus
Which type of reproduction involves only one parent and results in offspring that are genetically identical to the parent?
Asexual reproduction
A controlled experiment done by timmy, he wants to find out if the amount of sun exposure affects the growth rate of a sunflower. What is the independent variable?
what is the sun exposure?
Glycolysis, occurs in the cytoplasm of the cell. Does this specific stage require oxygen to function, and what is the final 3-carbon molecule produced?
No, it is anaerobic; produces Pyruvate.
In a DNA molecule, which nitrogenous base always pairs with Cytosine?
Guanine
What is the primary function of the Golgi Apparatus?
modifying, sorting, and packaging proteins
In sexual reproduction, what is the name of the single cell formed when a sperm cell fuses with an egg cell?
Zygote
how does a scientific theory differ from a hypothesis?
what is a hypothesis is a specific, testable prediction; a theory is a broad explanation supported by a lot of evidence?
ATP generated during cellular respiration is produced in the mitochondria during the Electron Transport Chain. What is the specific role of Oxygen in this final stage?
It acts as the final electron acceptor, forming water.
During DNA replication, what is the role of the enzyme 'Helicase'?
To unzip the double helix by breaking hydrogen bonds
Which organelle is found in plant cells but NOT in animal cells and is used to convert sunlight into sugar?
chloroplast
A single fertilized egg must divide millions of times to grow into a complex organism. Which specific type of cell division is responsible for this growth and the repair of body tissues?
Mitosis
A reasearcher is researching the type of blood infection and its cure with a pill. They give group A the medicine and Group B a sugar pill. What is the point of this experiment?
what is to eliminate bias?
Which two molecules act as these carriers, transporting high-energy electrons to the final stage of respiration?
NADH and FADH
Why is DNA replication described as 'semi-conservative'?
Because each new DNA molecule consists of one old strand and one new strand
The Rough Endoplasmic Reticulum (RER) appears 'rough' under a microscope because its surface is studded with which other organelle?
Ribosomes
The embryo organizes into three germ layers.
Researchers test a new energy drink that claims to make people run faster test three of their most athletic friends, and all three run their fastest mile ever after drinking it. The researcher concludes: "This drink is guaranteed to make anyone faster." What is wrong about his experiemnt?
This experiment is unreliable because they all may not run the same speed, have the same health issues, and the test should be done on all types of different people.
Which process produces the most energy (ATP) for the cell?
Aerobic Respiratio
On the lagging strand, DNA is synthesized in short segments. What are these segments called?
Okazaki fragments
Which of these organelles is responsible for digesting worn-out cell parts and breaking down macromolecules?
Lysosome
Which process allows organisms to produce offspring and ensure the survival of their species?
reproduction