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