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UPDATED 2024/2025 GRADE 12 ENGLISH GRAMMAR

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UPDATED 2024/2025 GRADE 12 ENGLISH GRAMMAR

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UPDATED 2024 BIO 105 EXAM 1
PRACTICE QUESTIONS

, UPDATED 2024 BIO 105 EXAM 1
PRACTICE QUESTIONS
The four main categories of bio-molecules are? - CORRECT ANSWERSProteins, Nucleic acids, Lipids,
Carbohydrates



What type of bond holds together the parts of a water molecule? - CORRECT ANSWERSPolar covalent
bond



What is the basic unit of structure and function of living things? - CORRECT ANSWERSA cell



If the most common form of Carbon has 6 protons, 6 neutrons, and 6 electrons. Which elements would
be an Isotope of carbon? - CORRECT ANSWERSAn atom with 6 protons, 8 neutrons, and 6 electrons



The alpha helix and beta represent which level of protein structure? - CORRECT ANSWERSSecondary
structure



Which of these are not a lipid?

A. Phospholipid

B. Cholesteral

C. Estrogen

D. RNA - CORRECT ANSWERSD. RNA



A hydrophilic molecule... - CORRECT ANSWERSWill attract to polar molecule



Which is the process of by which cells link monomers together to form polymers and by doing this water
is produced? - CORRECT ANSWERSdehydration synthesis (dehydration reaction)



A monosaccharide is to a carbohydrate as... - CORRECT ANSWERSAn amino acid to a protein

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