General Biology Chapter 7

Choose the letter that indicates the organelles that contains most of a cell's DNA.

C, the nucleus contains most of a cell's DNA.

The ____ is composed of DNA and protein.

Chromatin

You can recognize the process of pinocytosis when_____.

The cell is engulfing extracellular fluid

which of these structures stores modifies and packages products?

A, The Golgi apparatus, modifies, stores and packages products of the ER.

is/ar identical in the structure to centrioles.

Basal bodies

The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter.

C, the plasma membrane is selectively permeable.

What name is given to the rigid structure, found outside the plasma membrane, that surrounds and supports the bacterial cell?

Cell wall

The DNA- containing region of this bacterial cell if indicated by the letter ______.

D, The Nucleoid region contains DNA.

which os these provides the cell with structural support?

D, microfilaments are a component of the cytoskeleton.

Which of these is the double membrane that encloses the nucleus?

E, Nuclear envelope

______ are surface appendages that allow a bacterium to stick to a surface.

Fimbriae

Endocytosis moves materials ____ a cell via______.

Into.... Membranous vesicles

Which organelle plays a role in intracellular digestion?

Lysosome

which of these are hollow rods that she and support the cell?

Microtubules

Where is a bacterial cell's DNA found?

Nucleoid region

Ribosomal subunits are manufactured by the____.

Nucleolus

Which of these organelles produces H2O2 as a by-product?

Peroxisome

The____ is the bacterial structure that acts as a selective barrier allowing nutrients to enter the cell and wastes to leave the cell.

plasma membrane

Which of these organelles carries out cellular respiration?

Mitochondrion

a white blood cell engulfing a bacterium is an example of

Phagocytosis

The _____ is a selective barrier, regulating the passage of material into and out of the cell.

Plasma membrane

What is the function of a bacterium's capsule?

Protection

In bacterium, where are proteins synthesized?

Ribosomes

____ are the sites of protein synthesis.

Ribosomes

which of these organelles manufactures proteins bound for recreation out fo the cell?

Rough Endoplasmic Reticulum

Where is calcium stored?

Smooth Endoplasmic reticulum