Exam (elaborations)
BIO 100 Lab Test 1 Latest Updates 2024/2025
- Course
- Institution
BIO 100 Lab Test 1 Latest Updates 2024/2025
[Show more]
Content preview
BIO 100 Lab Test 1 Latest Updates2024/2025
What is the smallest unit of life? ANS✔✔ Cells
To which kingdom do single celled organisms with considerable internal
complexity belong? ANS✔✔ Protista
What is the difference between prokaryotes and eukaryotes? ANS✔✔
Prokaryote- has no nucleus (free DNA)
Eukaryote- has nucleus
List the four steps in the scientific method. ANS✔✔ Observe-->Hypothesize--
> Test--> Interpret
Formulate a hypothesis for determining the beneficial effect of a nutritional
substance. ANS✔✔ If a substance has a higher caloric intake then more
energy will be provided.
Define dependent and independent variable. ANS✔✔ dependent: the
outcome based on the variable we controlled
independent variable: the one we control/manipulate, variable being tested
List three criteria for judging the reliability of a scientific report. ANS✔✔
Logical, observational, and Emperical
, List the four major groups of macromolecules and their basic structural units.
ANS✔✔ Proteins: formed by amino acids (enzymes, muscles, hair)
(monomers--> polymers)
Carbohydrates: are made of glucose molecules (sugar, starch, chips)
Lipids: formed by fatty acids (fats, oils, cholesterol, cell membrane)
Nucleic Acids: consist of nucleotides (RNA, DNA)
What is the principal function of carbohydrates? ANS✔✔ storage of energy
(starch, glycogen) and they are also part of the structural component
(cellulose in plants and chitin in animals). Carbohydrates are the most
common source of biochemical energy.
Name three cellular structures. ANS✔✔ mitochondria, cell membrane,
nucleus, golgi apparatus, endoplasmic reticulum, cell wall, chloroplasts,
ribosomes, cytoplasm
Determine the composition of the following "unknown" substance that
produced the results below with the listed reagents:
Iodine (reagent) light orangish brown (color) ANS✔✔ (reaction yes/no?)
Yes
Biuret (reagent) clear blue (color) ANS✔✔ (reaction yes/no?) No
Benedict's (reagent) orange and cloudy (color) ANS✔✔ (reaction yes/no?)Yes
List the five kingdoms of life. ANS✔✔ Monera (Bacteria Domain- Prokaryote)
are single celled organisms that don't have a nucleus.
Protista (Eukarya) are single celled organisms that do have a nucleus.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Schoolflix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now