Show:
Organelles
Experimental Design
Ecosystem Relationships
Macromolecules
Enzymes and Homeostasis
100
Which of the following organelles is called the "brain" or "control center" of the cell? A. ribosome B. nucleus C. golgi apparatus D. lysosome
B. nucleus
100
Which of the following comes first in the scientific method? A. design an experiment B. ask a question/identify a problem C. make a hypothesis D. collect data
B. ask a question/identify a problem
100
In this type of relationship, one organism is harmed and the other organism benefits (+/-) A. parasitism B. mutualism C. commensalism
A. parasitism
100
Which of the following macromolecules is made from amino acids? A. proteins B. carbohydrates C. lipids D. nucleic acids
A. proteins
100
Enzymes are a type of: A. carbohydrate B. lipid C. protein D. nucleic acid
C. protein
200
Which of the following organelles is responsible for producing energy? A. Golgi apparatus B. Rough ER C. Smooth ER D. Mitochondria
D. Mitochondria
200
Which of the following makes an experiment a good experiment? A. repeating it B. being open, honest, and skeptical C. adding bias D. both A and B
D. both A and B
200
In this type of relationship, one organism benefits and the other is not affected at all (+/0) A. parasitism B. mutualism C. commensalism
C. commensalism
200
Which of the following macromolecules is used for long-term energy storage? A. carbohydrates B. nucleic acids C. lipids D. proteins
C. lipids
200
Enzymes' names typically end in the same three letters. What are these letters?
-ase
300
These organelles are only found in plants and capture energy from the sun and turn it into sugar in a process called photosynthesis
Chloroplasts
300
Iyana wants to know if the color of her nails affects how many compliments she gets. What is the independent variable in this scenario?
The color of Iyana's nails
300
A tapeworm lives inside a human, feeding off of whatever the human eats. As the tapeworm grows, the human eventually starves itself. What kind of relationship is this?
Parasitism
300
In addition to providing short-term energy, this macromolecule is found in cell walls as the sugar cellulose.
Carbohydrate (monosaccharide building blocks)
300
What is one good example of homeostasis?
(answers will vary)
400
Without this organelle, a cell would not be able to store any food or water.
Vacuole
400
Rameer wants to know if the number of sit-ups someone does will affect their heart rate. What is the dependent variable in this experiment?
Heart rate
400
Two orangutans pull bugs off each other. They help each other stay clean while also getting a meal of bugs. What kind of relationship is this?
Mutualism
400
What is the monomer of the macromolecule that is used to code genetic information?
nucleotides
400
What two things can cause an enzyme to become denatured?
temperature and pH
500
If this organelle is missing, proteins cannot be transported throughout the cell.
Rough ER
500
Stacey wants to know how well two different fertilizers work. She has three pots of plants. She gives one pot Miracle-Gro and water, one pot Grow-Fast and water, and one pot just water. Which of the pots is the control?
The pot that just gets water
500
In a parasitic relationship, why does the parasite not immediately kill its host?
Because the host needs to be alive for the parasite to benefit (it usually feeds on the host)
500
What is the function of the macromolecule whose building blocks (monomers) are fatty acids?
Long-term energy storage
500
The enzyme peptidase works best in extremely acidic conditions. In fact, it becomes denatured in basic conditions. Which of the following pH values would denature peptidase? A. 6.5-7.0 B. 12-12.5 C. 0-2.5 D. none of the above
B. 12-12.5