Life Functions
A term that describes organisms that make their own food.
Autotrophs
What is the format of how to write a hypothesis?
If....then...
What are the monomers of proteins?
Amino acids
What organic compound is involved in photosynthesis and cellular respiration?
Glucose
Define the term homeostasis
the balance in the body to keep a stable state
inputs and outputs of photosynthesis
inputs: water, sunlight, carbon dioxide
Independent Variable = I control
Dependent Variable = Depends on the Independent Variable
What are the 4 major macromolecules
1. Lipids
2. Proteins
3. Nucleic Acids
4. Carbohydrates
Describe the function of ribosomes in a cell.
Explain how the respiratory and circulatory systems work together.
the respiratory systems supplies the circulatory system with oxygen to deliver to the body to make energy
compare photosynthesis to cellular respiaration
the products of photosynthesis are used as reactants in cellular respiration
How many variables should be tested in an experiment? (think: how many should be changed?)
1 variable
Identify which biological process (Photosynthesis, Respiration, or Decomposition) moves carbon from the atmosphere into living organisms.
Photosynthesis
What is the difference between active transport and diffusion? Describe in terms of energy and concentration gradients.
Active transport is low to high concentrations and requires ATP (energy)
Diffusion is high to low concentrations and does not require ATP (energy).
What are 3 important protein molecules in the body?
enzymes, hormones, neurotransmitters
Define metabolism.
All of the chemical reactions that occur in an organism.
What is a control group?
A group of subjects in an experiment that do not receive the variable being tested.
Name 3 factors that affect enzyme activity.
1. pH
2. Temperature
3. Concentration of substrate
What type of cells in the human body would contain a large surplus of mitochondria and why?
Muscle cells aid in carrying out cellular respiration to make ATP. ATP is in high demand to help these cells carry out their necessary functions/metabolic processes.
Explain the impact of high temperatures or pH on proteins in the body
It will change the shape and no longer allow the proteins to do their specific job
How are unicellular and multicellular organisms able to maintain homeostasis and carry out necessary life functions (think what do they each contain?)
Unicellular have organelles that help carry out life functions
Multicellular organisms have specialized cells to help carry out life functions.
why must data be both accurate and precise
to ensure that the experiment is valid
Give an example of a monosaccharide.
sugar, honey, glucose
Explain why only certain molecules can pass through the plasma membrane. Name an example of a molecule that can pass through and one that cannot.
Semi-permeable
Can pass: Small, nonpolar molecules (e.g., monosaccharides)
Cannot pass: Large, polar molecules (e.g., polysaccharides)
How do the circulatory system and the urinary system interact to filter the blood? What would happen to the body's salt/water balance if blood flow to the kidneys was restricted?
there would be too much salt and waste in the body, this would cause distruption to homeostasis