6.10: Practice Test- The Cellular Level of Organization
- Page ID
- 34413
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Review the material from this module by completing the practice test below:
1. Because they are embedded within the membrane, ion channels are examples of ________.
- receptor proteins
- integral proteins
- peripheral proteins
- glycoproteins
- up; electrical
- up; electrochemical
- down; pressure
- down; concentration
- endocytosis
- passive transport
- active transport
- facilitated diffusion
- filtration; phagocytosis
- osmosis; pinocytosis
- solutes; fluid
- gradient; chemical energy
- the walls of the pool
- the chlorine
- the flotation toys
- the water
- Golgi apparatus
- ribosomes
- lysosomes
- proteins
- production of proteins
- detoxification of certain substances
- synthesis of steroid hormones
- regulation of intracellular calcium concentration
- They all serve to scaffold the organelles within the cell.
- They are all characterized by roughly the same diameter.
- They are all polymers of protein subunits.
- They all help the cell resist compression and tension.
- mitochondria
- peroxisomes
- lysosomes
- ER
- protein-lined membrane pores
- a double cell membrane
- the synthesis of ribosomes
- the production of cellular energy
- chromatin
- histones
- ribosomes
- nucleosomes
- TAGGCGCG
- ATCCGCGC
- CGAATATA
- TGCCTCTC
- DNA, nucleosome, chromatin, chromosome
- nucleosome, DNA, chromosome, chromatin
- DNA, chromatin, nucleosome, chromosome
- nucleosome, chromatin, DNA, chromosome
- pulling apart the two DNA strands
- attaching complementary nucleotides to the template strand
- untwisting the DNA helix
- none of the above
- DNA contains thymine whereas RNA contains uracil
- DNA contains deoxyribose and RNA contains ribose
- DNA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars
- RNA is single stranded and DNA is double stranded
- nucleus; cytoplasm
- nucleolus; nucleus
- nucleolus; cytoplasm
- cytoplasm; nucleus
- 1
- 2
- 3
- 4
- the carriers that shuffle amino acids to a growing polypeptide strand
- the ribosome
- the messenger molecule that provides the code for protein synthesis
- the intron
- G0
- G1
- G2
- S
- a cell with additional genetic material than normal
- cancer
- a cell with less genetic material than normal
- any of the above
- stop all cells from dividing
- stop certain cells from dividing
- help oncogenes produce oncoproteins
- allow the cell to skip certain phases of the cell cycle
- multipotency, pleuripotency, oligopotency, unipotency
- pleuripotency, oligopotency, multipotency unipotency
- oligopotency, pleuripotency, unipotency, multipotency
- pleuripotency, multipotency, oligopotency, unipotency
- endothelial
- epithelial
- hematopoietic
- mesenchymal
- fetal stem cells
- embryonic stem cells
- cells from the umbilical cord and from baby teeth
- hematopoietic stem cells from red and white blood cells
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