Biology Chapter 4 questions
the functions of the rough endoplasmic reticulum include which of the following?
-Addition of short carbohydrates to proteins -glycoprotein synthesis - protein synthesis
what are some functions of lysosomes?
-recycling of building block to make new molecules. -digestion of substances taken in by endocytosis -breaking down of macromolecules in the cell.
vacuoles function in plant cells in which of the following ways.
-they are involved in cel growth -they store wastes -they store ions, sugars, and pigments
arrange the steps of protein transport through the endomembrane system into the correct order. -proteins are packaged -proteins are modified -transport vesicles -proteins are released
1.transport vesicles 2.proteins are modified 3.proteins are packaged 4. proteins are released
the most common alteration in the golgi apparatus to proteins and lipids synthesized by the endoplasmic reticulum is which of the following.
addiction of short sugar chains
functions of the smooth endoplasmic reticulum include which of the following?
assembly of membrane lipids steroids synthesis storage fo calcium of ions (Ca2+)
...... is an enzyme that breaks down hydrogen peroxide to harmless substances in peroxisomes
catalases
The ..... face of the Golgi apparatus is located near the endoplasmic reticulum
cis face
these membrane-bound structures prevent excess water buildup in some protists by expanding as water enters the cell, and expelling their contents to the exterior of the cell
contractile vacuole
true/false cells that carry out extensive lipid synthesis have more rough ER compared to smooth ER
false
this organelle consists of a stack of flattened membranes, each enclosing a single compartment
golgi apparatus
...... break down old organelles to recycle their components.
lysosomes
indicate which of the following are functions of the golgi apparatus.
packaging molecules into transport vesicles collecting molecules to be transported through the cell modifying proteins produced in the ER
the function of this organelle is to oxidize fatty acids, and in the process hydrogen peroxide is produced
peroxisome
the ... of a cell get their name from the hydrogen peroxide produced as byproduct of the activities of oxidative enzymes
peroxisomes
the largest vacuoles, which can occupy up to 80% of the cell volume, are found in which type of cell? fungal, bacterial. plant, animal
plant
lysosomes contain enzymes that break down which of the following? membranes, proteins, carbohydrates, nucleic acids, lipids
proteins carbohydrates nucleic acids lipids
Functions that include glycoprotein production and protein sorting are characteristics of the ...... endoplasmic reticulum
rough
the ..... is the membrane surrounding the central vacuole in plants
tonoplasts
Vesicles with materials destined for other parts of the cell or the plasma membrane bud from the ..... face of the Golgi apparatus.
trans
Cells that synthesize many proteins have greater amounts of rough ER. TRUE/FALSE
true