Advanced Biology Question Preview (ID: 34538)
Chapter 3 And 4.
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The idea that all living things are composed of cells and that all cells come from other cells defines
a) the laws of inheritance.
b) cell theory.
c) organelle theory.
d) inheritance of acquired characteristics.
In the plasma membrane, the phospholipid heads
a) are hydrophilic and face outward towards the aqueous solution on both sides of the membrane
b) are hydrophobic and face inward, shielded from water
c) are hydrophobic and face outward towards the aqueous solution on both sides of the membrane
d) are hydrophilic and face inward, shielded from water
Which of the following structures is exclusively associated with prokaryotic cells?
a) nucleoid
b) chromosome
c) a membrane-bound nucleus
d) ribosomes
________ cells lack a membrane-enclosed nucleus.
a) Plant
b) Eukaryotic
c) Prokaryotic
d) Fungal
Unlike animal cells, plant cells have ________ and ________. Unlike plant cells, animal cells have ________.
a) centrioles . . . chloroplasts . . . cell walls
b) chloroplasts . . . cell walls . . . a nucleus
c) centrioles . . . cell walls . . . large central vacuoles
d) chloroplasts . . . cell walls . . . centrioles
Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?
a) endoplasmic reticulum
b) cytoplasm
c) nuclear envelope
d) plasma membrane
Which of the following statements regarding the endomembrane system is false?
a) The endomembrane system includes the rough and smooth endoplasmic reticulum.
b) The endomembrane system is involved in the synthesis, storage, and export of important molecules.
c) The endomembrane system includes the nuclear envelope.
d) The endomembrane system is a system of interrelated membranes that are all physically connected.
The Golgi apparatus
a) is the site of carbohydrate breakdown.
b) strings together amino acids to produce proteins.
c) stores, modifies, and packages proteins.
d) is composed of stacks of membranous vesicles that are continuous with one another.
The stroma is the
a) space between the inner and outer membranes of a chloroplast.
b) thick fluid enclosed by the inner chloroplast membrane.
c) space between the inner and outer membranes of a mitochondrion.
d) watery fluid enclosed by the inner membrane of a mitochondrion.
The extracellular matrix attached to cells via glycoproteins that then bind to _______ in the plasma membrane.
a) collagen
b) integrins
c) dynein
d) polysaccharides
Which of the following statements about enzymes is false?
a) They regulate virtually all chemical reactions in a cell.
b) They are monomers used to build proteins.
c) They function as chemical catalysts.
d) They increase the rate of chemical reactions.
The storage form of carbohydrates is ________ in animals and ________ in plants.
a) glycogen . . . cellulose
b) starch . . . glycogen
c) glycogen . . . starch
d) cellulose . . . glycogen
Skin cells are fastened into strong sheets by
a) basal bodies.
b) communicating junctions.
c) tight junctions.
d) anchoring junctions.
A disaccharide forms when
a) two starches join by hydrolysis.
b) two starches join by dehydration synthesis.
c) two monosaccharides join by dehydration synthesis.
d) two monosaccharides join by hydrolysis.
Which of the following options correctly pairs a polymer and its monomer?
a) DNA, nucleotides
b) cellulose, amino acids
c) RNA, ribose
d) collagen, nucleic acids
The results of dehydration synthesis can be reversed by
a) the addition of an amino group.
b) condensation.
c) polymerization.
d) hydrolysis.
Proteins differ from one another because
a) the sequence of amino acids in the polypeptide chain differs from protein to protein.
b) the peptide bonds linking amino acids differ from protein to protein.
c) each protein contains its own unique sequence of sugar molecules.
d) the number of nucleotides found in each protein varies from molecule to molecule.
Organic compounds
a) always contain carbon.
b) always contain nitrogen.
c) are synthesized only by animal cells.
d) always contain oxygen.
Which of the following lists contains only polysaccharides?
a) starch, amino acids, and glycogen
b) cellulose, starch, and glycogen
c) fructose, cellulose, and glucose
d) sucrose, starch, and cellulose
Fatty acids are
a) composed of carbon, hydrogen, and oxygen in a 1:2:1 ratio.
b) composed of carbon, hydrogen, glycerol, and a phosphate group.
c) composed of four linked rings.
d) hydrophobic.
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