mastering bio ch4 prt 2

How are cell surface proteins exported out of the cell? The protein will be sent to the smooth endoplasmic reticulum to be sorted for its final destination. The protein is folded, then packaged for transport to the Golgi apparatus. The protein will be modified with the addition of a monosaccharide. The proteins are packaged into vesicles for transport to the lysosomes.

The protein is folded, then packaged for transport to the Golgi apparatus.

Peroxisomes are organelles that are involved in the _____. production of ribosomes synthesis of lipids generation of energy breakdown of fatty acids

breakdown of fatty acids

What mitochondrial feature enhances cellular respiration? intermembrane space mitochondrial DNA cristae matrix

cristae

The maximum size of a cell is limited by _____. the amount of flexibility it needs to be able to move the number of organelles that can be packed inside its need for enough surface area to make exchanges with its environment the materials needed to build it

its need for enough surface area to make exchanges with its environment

Mitochondria appear in the greatest numbers in cells that are _____. metabolically active undergoing cell division reproducing dead

metabolically active

The plasma membrane would fit into which general function category? manufacturing breakdown support, movement, and communication energy production

support, movement, and communication

Membrane proteins are synthesized by ribosomes that are attached to _____. the Golgi apparatus lysosomes the nucleolus the endoplasmic reticulum

the endoplasmic reticulum

Which microscope would be best suited to the measurement of the internal structures of a bacterial cell? scanning electron microscope either a scanning or transmission electron microscope light microscope transmission electron microscope

transmission electron microscope

Which of the following structures is essential for the successful operation of the endomembrane system? chloroplasts transport vesicles anchoring junctions centrioles

transport vesicles

A 100 mm x 100 mm x 100 mm cell has a surface area that is _____ and a volume that is _____. When this volume is broken into many smaller cells, that are 10 mm x 10 mm x 10 mm, the sum of the surface areas of the smaller cells is _____ than the surface area of the initial cell. 60,000 mm2 ... 1,000,000 mm3 ... larger 60,000 mm3 ... 1,000,000 mm2 ... smaller 60,000 mm2 ... 1,000,000 mm3 ... smaller 600 mm2 ... 1,000 mm3 ... larger

60,000 mm2 ... 1,000,000 mm3 ... larger

Cilia and flagella move thanks to the energy provided by __________, a special motor protein that can harvest energy from ATP. actin basal bodies dynein arms pseudopodia

dynein arms

Which of the following structures is directly involved in the passage of electrical signals between cells as, for example, in the vertebrate heart? chemical synapses anchoring junctions gap junctions tight junctions

gap junctions

The internal skeleton of a cell is composed of _____. microtubules, intermediate filaments, and microfilaments cellulose, microtubules, and centrioles cellulose and intermediate filaments microfilaments

microtubules, intermediate filaments, and microfilaments

Which cell structure is responsible for metabolism? Golgi apparatus mitochondrion nucleus smooth endoplasmic reticulum

mitochondrion

The architecture of cell surfaces can be viewed in the most detail using a __________. scanning electron microscope microscope and fluorescent dyes transmission electron microscope light microscope

scanning electron microscope

Lysosomes are derived from __________ and function in __________. symbiotic bacteria ... extrachromosomal inheritance mitochondria ... anaerobic respiration the Golgi apparatus and rough endoplasmic reticulum ... digestion of worn-out organelles microtubule organizing centers ... storage of ATP

the Golgi apparatus and rough endoplasmic reticulum ... digestion of worn-out organelles