BIOL 1406 EXAM 1

BIOL 1406 EXAM 1

University

59 Qs

quiz-placeholder

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BIOL 1406 EXAM 1

BIOL 1406 EXAM 1

Assessment

Quiz

Chemistry

University

Medium

NGSS
HS-PS1-2, HS-LS1-6, HS-LS1-1

+7

Standards-aligned

Created by

Madison Gerlach

Used 76+ times

FREE Resource

59 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The chemical properties of an atom are determined chiefly by the number and arrangement of its most energetic electrons, which are called ____.

valence electrons

nucleus electrons

energetic electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___ the strongest of all the types of bonds. This results when two atoms attain stable electron numbers in their outermost shells by equal or unequal sharing one or more pairs of electrons between them, such as the bonds between C and H in methane.

hydrogen bonds

covalent bonds

ionic bonds

hydrophobic interactions

Tags

NGSS.HS-PS1-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

__ occur between atoms with a very high difference in electronegativity. This results in a complete transfer of one or more electrons from one atom to another that has a higher electronegativity. For example, in table salt (NaCl), the sodium acquires a positive change (Na+ ) by donating its electron to chlorine, which now acquires a negative charge (Cl- ).

covalent bonds

ionic bonds

hydrogen bonds

van der waals

Tags

NGSS.HS-PS1-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  • Science begins with observations, therefore, much of science is purely _____.

descriptive

factual

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___ : (oxidation and reduction reactions) are chemical processes that transfer electrons (and their energy) from a reducing agent to an oxidizing agent. An atom, ion, or molecule loses electrons during oxidation (and their energy). An atom, ion, or molecule gains electrons during reduction (and their energy). Electron transfer or shuttling is extremely common within cells

hydrolosis

dehydration (condensation) reaction

redox reactions

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___ or fats are predominately hydrocarbon chains that are used as energy storage and insulation. Lipids are hydrophobic in nature. Modified lipids form phospholipids, steroid hormones, cholesterol and some vitamins. Cell membranes are composed of lipid bilayers, which separate the aqueous inside of the cell (the cytoplasm) from the aqueous outside of the cell (the extra cellular environment).

monomers

lipids

carbs

nucleic acids

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___ Include monosaccharides, disaccharides, trisaccharide or polysaccharides. A monosaccharide is composed of carbons flanked by H atoms or -OH groups, is hydrophilic and can exist in a linear or cyclic structure. Monosaccharides are linked together by glycosidic bonds to form polysaccharides including starch, chitin and cellulose. Carbohydrates are used as an energy source, as a source for carbon, and can be attached to other macromolecules, including lipids and proteins, to serve as recognition markers for the cell. Proteins covalently attached to carbohydrates (glycans) are called glycoproteins: We have different blood groups due to the variation in the glycans that are attached to cell surface protein on mature red blood cells

lipids

carbs

monomers

nucleic acids

Tags

NGSS.HS-LS1-6

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