.png){kind=logo}
Test Bank for Lehninger Principles of Biochemistry, 8e David Nelson, Michael Cox (All Chapters download link is at the end of this file)
Chapter 01: The Foundations of Biochemistry
1. In a bacterial cell, the DNA is in the:
- cell envelope.
- cell membrane.
- nucleoid.
- nucleus.
- ribosomes.
ANSWER: c
- Which is the major feature that distinguishes eukaryotes from Bacteria and Archaea?
- DNA
- photosynthetic capability
- plasma membranes
- ribosomes
- the nucleus
ANSWER: e
3. In eukaryotes, the nucleus is enclosed by a double membrane called the:
- cell membrane.
- nuclear envelope.
- nucleolus.
- nucleoplasm.
- nucleosome.
ANSWER: b
- Which is the range of typical diameters of animal and plant cells?
- 0.1 μmto 10 μm
- 0.3 μm to 30 μm
- 5 μm to 100 μm
- 10 nm to 300 nm
- 1 μm to 300 μm
ANSWER: c
- Which group of single-celled microorganisms has many members found growing in extreme environments?
- bacteria
- archaea
- eukaryotes
- heterotrophs 1 / 3
- None of the answers is correct.
ANSWER: b
- Organisms that derive energy from the oxidation of chemical fuels and require organic compounds as sources
of carbon are classified as:
- chemoautotrophs.
- chemoheterotrophs.
- lithotrophs.
- photoautotrophs.
- photoheterotrophs.
ANSWER: b
- Which is a list of organelles?
- mitochondria, chromatin, endoplasmic reticulum
- peroxisomes, lysosomes, plasma membrane
- proteasomes, peroxisomes, lysosomes
- mitochondria, endoplasmic reticulum, peroxisomes
- All of the answers are correct.
ANSWER: d
- Which list has the cellular components arranged in order of increasing size?
- nucleotide < DNA < nucleus < chromatin
- nucleotide < DNA < chromatin < nucleus
- nucleotide < chromatin < DNA < nucleus
- DNA < nucleotide < nucleus < chromatin
- DNA < chromatin < nucleus < nucleotide
ANSWER: b
- In supramolecular complexes, macromolecules are held primarily through noncovalent interactions. Which
- carbon–carbon bonds
- hydrogen bonds
- hydrophobic interactions
- ionic interactions
- van der Waals interactions
one is NOT considered a noncovalent interaction?
ANSWER: a
- Which element is NOT among the four most abundant in living organisms?
- carbon
- hydrogen
- nitrogen
- oxygen
- phosphorus
ANSWER: e
- / 3
- The four covalent bonds in methane (CH4) are arranged around carbon to give which geometry?
- linear
- tetrahedral
- trigonal bipyramidal
- trigonal planar
- trigonal pyramidal
ANSWER: b
- What functional groups are present on this molecule?
- ether and aldehyde
- hydroxyl and aldehyde
- hydroxyl and carboxylic acid
- hydroxyl and ester
- hydroxyl and ketone
ANSWER: b
- The macromolecules that serve in the storage and transmission of genetic information are:
- carbohydrates.
- lipids.
- membranes.
- nucleic acids.
- proteins.
ANSWER: d
- Stereoisomers that are nonsuperimposable mirror images of each other are known as:
- anomers.
- cis-trans isomers.
- diastereoisomers.
- enantiomers.
- geometric isomers.
ANSWER: d
15. The sum of all the proteins functioning in a cell is the:
- metabolome.
- proteasome.
- lysosome.
- proteome.
- genome.
ANSWER: d
- / 3
.png)