chapter 4 Flashcards

Is the cell division that takes place in somatic cell

Cells include all the cells of the body except sex cells

When a cell is dividing, the DNA is tightly coiled

The two phases of the cell cycle are interphase and

In cell division, one cell divides to produce two identical cells called

Is a means by which cells release substances to the outside. This process requires the cell to expand energy in the form of . Typically the secretion is packaged into vesicle which fuse with the plasma membrane prior to release

The is the "control center" of cellular activities in a cell

Which statements correctly describe the nuclear envelope?

Are protein- digesting organelles in the nucleus and cytosol of cells

The primary structure for the processing and packaging of proteins for transport out of the cell is the

Which statements characterize organells

Place the steps of transcription in order

Which are required for translation?

Rapid digestion of a cell by its own lysosome is called

The organelle in which transcription takes place is the

All material that enter or leaves the cell must pass across the

Match the tonicity to its definition

Which statements describe chromosome?

Ion movement though small proteins in the membrane is an example of

junctions are found between adjacent epithelial cells and prevent substances from leaking between them

One of the main factors that influences membrane permeability is

Forms of passive transport across cell membranes includes

During translation, the site is where the new amino acids join the ribosome, the site is where the new polypeptide is forming and the site is from where the tRNA exits

A is required for osmosis to occur

Is the tendency of molecules to move from area of high concentration to low concentration

Match the stage of translation with the events that occur with it

Cell membrane contains

Which of the following are classified as plasma membrane protein

Types of cell membrane junction

A three nucleotide unit of mRNA is known as

Is a passive form of transport

Which are function of smooth ER

Put the steps of translation into the proper order

Which statement characterizes metaphase

Old or worn out organelles in a cell are removed by what organelle

In passive transport processes, materials flow from a region of concentration of the material to a region of concentration of the same material

Match the nucleotide pairs of DNA

Desmosome membrane junctions are reinforced by

Which statement characterize anaphase?

Proteins that assist the movement of a substance across the cell membrane are called

Cell membrane can regulate the transport of materials into and out of the cell. Thus, cell membranes are said to be

During transcription builds an RNA copy of a DNA gene

True or False: The steeper the concentration gradient of a solute, the lower the osmotic pressure

Match the events of mitosis with each phase

Which statement characterize microvilli

The process that occurs on ribosome by which a mRNA transcript is read and a new protein produced is called

Match the DNA structures

The two major categories of membrane transport are transport that requires no energy expenditure and transport

Flagellum means

Chromation is composed of

The process in which a mRNA copy of a gene is read by ribosomes in the cytoplasm to produce a protein is called

The bulk of the plasma membrane consists of a

Which organelles are the "powerhouse" of the cell because they perform aerobic respiration?

In the cell cycle, division of the nucleus is called

Which statements characterize rough ER

The Na+ K+ exchange pump is a special type of ion pump called an pump because it moves one type of ion into a cell its concentration gradient and another type of ion out of the cell its concentration gradient

junctions allow small solute to travel between adjacent cells

Transport (shuttle) vesicles are produced within a cell by

Which of the following statements correctly describe enzymes

The primary cellular sites for the production of proteins are the

A type of steroid called is scattered with in the hydrophobic regions of the phospholipid bilayer, where it strengthens the membrane and stabilizes it at extreme temperature

Which statements characterize prophase?

Internally, cilia and flagella contain cytoplasm and . They are enclosed by the plasma membrane

Select all that are found in the cell membrane

The centrosome contains two that lie perpendicular to one another

The cis- face of the Golgi apparatus is also called the region

Because of the structure of the phospholipid of bilayer, some water molecules slip through the phospholipid bilayer in limited amounts but large amounts of water must pass through

Which statement characterize the S phase of interphase?

The last part of interphase is the phase