Anatomy, Chapter 3 Cells

Down

In osmosis, water diffuses through a semipermeable membrane _____________ its concentration gradient.

Endocytosis

Name the type of active transport mechanism in which large molecules or particles are conveyed by a vesicle into the cell.

Nucleus

The ________ of the cell is relatively large, usually spherical structure, that contains the genetic material that directs the activities of the cell.

Nucleus

The _________ is surrounded by an envelope and contains the genetic material (DNA) of the cell.

Meiosis

The form of cell division that occurs only in cells that give rise to sex cells is called?

Cytosol

The liquid portion of the cytoplasm is called?

Endoplasmic Reticulum (ER)

The membranous organelle that is the site of synthesis of proteins and lipids is the?

Between

The prefix "inter-" means?

Telophase

The stage of mitosis in which chromosomes uncoil to become chromatin and the nuclear envelope reforms is?

Condenses into chromosomes during cell division, is made of protein and DNA

What are characteristics of chromatin?

To identify the cell as being "self" or foreign

What is the function of glycoproteins?

Above

What is the meaning of the prefix "hyper?"

Below

What is the meaning of the prefix "hypo-?"

Hydrophillic phosphate head

What part of the phospholipid in the cell membrane comes in contact with the extracellular fluid?

Cell membrane, nucleus, cytoplasm

Which are the three major parts of a cell, that when stained, can be easily seen under the light microscope?

The nucleus and nucleolus disappear, chromatin coils up into chromosomes, spindle fibers form

Which events occur during prophase?

It functions in the synthesis of lipids, it provides attachment for ribosomes, it functions in the synthesis of proteins, it is composed of membranous sacs

Which of the following are characteristics of the Endoplasmic Reticulum (ER)?

Phospholipids, cholesterol, proteins, carbohydrates

Which of the following are components of the cell membrane?

It is the site of signal transduction, it is a selectively permeable passageway

Which of the following are functions of the cell membrane?

Chromatin

_________ is the material in the nucleus composed of protein and DNA; it contains information to guide synthesis of proteins and it condenses into chromosomes during cell division.

Cytoskeleton

A network of microtubules and microfilaments form a structure called the _____________ of the cell.

Higher

Solution A has a higher concentration of salt than solution B, therefore, solution B has a _______ concentration of water than solution A.

True

T or F: Mitochondria are abundant in cells with high energy requirements such as muscle cells.