Chapter 1
The variable that is changed in an experiements
A polar covalent bond is
A bond between two atoms that have an unequal sharing of electrons
The golgi apparatus is different from the endoplasmic reticulum because
Digestion is an example of
A catabolic reaction that breaks down large molecule into their smaller units
RUTF are most effective to combat
Malnutrition
A hypothesis must be
Testable and Falsifiable
Organic molecules lack carbon-hydrogen bonds
False: organic molecules need carbon-hydrogen backbones
Lysosomes in animal cells
The micronutrient minerals are ____ and vitamins are ____
Inorganic and organic
___ amino acids are synthesized in the body
11
When the participants and researchers do not know who received the treatment and who received the placebo
The 5 properties of life are
1) growth
2) reproduction
3) homeostasis
4) respond to stimuli
5) use energy
What is false about peptidoglycan?
a. it is present in bacterial cell walls
b. made up of amino acids and sugars
c. it is not affected by penicillin
d. it is not present in animal cells
c. it is not affected by penicillin
The main purpose of penicillin is to weaken the peptidoglycan in cell walls, causing the cell to burst and 💀
DNA and RNA considered macronutrients
False: DNA and RNA are considered macromolecules, not macronutrients. Although DNA and RNA are needed in large quantities, they do not need to be ingested in large quantities like macronutrients are needed
swell because of the water moving into the saltier internal environment
Statistical significance indicates
A high probability that the results of an experiment are not due to chance
Bond strength increases as
The energy needed to break a bond increases due to the higher amount of shared electrons
Which substance can easily move across a cell membrane via facilitated diffusion?
a. Glucose down its concentration gradient
b. N2 down its concentration gradient
c. Cl- against its concentration gradient
d. Water down its concentration gradient
a. glucose down its concentration gradient
Facilitated diffusion is used for large, charged, or polar molecules like ions and glucose to get across the cell membrane from high to low concentrations
A fruit salad with yogurt dressing and a side of crackers is missing which macronutrient
Surface tension is caused by
The 6 criteria for evaluating a scientific study
1. sample size
2. presence of bias
3. model system
4. replication
5. funding
6. publication reputation
The bond between the hydrogen and oxygen atoms in a water molecule is ____, whereas the bond between 2 water molecules is ____
If a cell has a 25% solute concentration and the environment outside the cell has a 43% solute concentration, water will move
outside of the cell and the cell will shrink
An enzyme that acts on a substrate in plant cells will work on a substrate found in animal cells
False, enzymes are specific and will only work on the substrate they match to (unless they are mutated)
What days can you take the exam?
Wednesday through Friday