Scientific Method
All research should start with...
A problem
How do you define homeostasis in the human body system?
A self-regulating process by which biological systems maintain stability while adjusting to changing external conditions
What are the main organ groups of the digestive system and the examples from each?
Alimentary tract/hollow organs: esophagus, gut, etc
Accessory organs/solid organs: liver, pancreas, etc
Why is the right kidney is smaller and located lower compared to the left one?
Because there's liver that is located right above it
What is the special class for this term's Science?
Expert guest speaker session
What are the main elements/chapters of an ideal experiment report?
Research questions, hypotheses, introduction, materials, steps, variables, data, discussion, conclusion, appendix/pictures
How do you differentiate the negative and positive feedback loops in the human body system?
Negative feedback loops lower/negate the harmful effects while the positive ones amplify/add more damage
Body gives signal if we're hungry to eat so that we won't be hungry anymore
How do you define enzyme?
A substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction, such as breaking down large molecules to smaller ones or building big ones from smaller components
How do you differentiate between ureter and urethra?
Ureter is the channel between the kidneys and the bladder, urethra is the channel to discharge urine away
How much are the final score percentages covered by your term 1 formative and summative assessments?
Formative assessment: 30%
Summative assessment: 35%
What is the main difference between research questions and hypotheses?
Students describe their answers
Why is addiction is an example of a positive feedback loop?
Since it amplifies the harmful effects such as damage to the human body system instead of lowering them down
What are the main regions of the small intestine?
Duodenum, jejunum, ileum
What is the difference between urinary system and excretory system?
Urinary system consists only urine-producing organ system (kidney, urethra, ureter, etc)
Excretory system consists of all waste-removing systems
Which weeks are our formative and summative assessment starting points?
Formative assessment: week 4 (August 22-26)
Summative assessment: week 6 (September 5-9)
What are the three types of variables?
Independent variables: Things/values you change in an experiment
Dependent variables: Things/values that are the results of changes in the independent variables
Controlled variables: Things/ values that are kept the same in an experiment
Why macronutrients are so important?
Because they provide building blocks to build the human body itself, provide energy to make it functions properly, and help it fights diseases
Examples: carbohydrates, fat, and protein
What are the five steps of digestion?
Ingestion, digestion, absorption, assimilation, elimination
What is the importance of the BUN test?
To know the urea nitrogen level in our blood. Urea nitrogen is the waste product of blood filtration by the kidneys and should be low.
How many effective weeks do we have for term 1 and 2's Science?
Term 1: 9 weeks
Term 2: 7 weeks
What the examples of the three types of variables?
Students describe their answers
Why is it so important to calculate our calorie intake?
The amount of energy in an item of food or drink is measured in calories. When we eat and drink more calories than we use up, our bodies store the excess as body fat. If this continues, over time we may put on weight.
Create an analogy of each stage of digestion!
Students describe their answers
Describe the three processes of filtrate production/blood filtration in the kidney!
filtration in the glomerulus, selective reabsorption in the renal tubules, and finally excretion
Nutrition, calorie intake, and impacts of diet to the digestive system and the environment