HA&P Lab Exercise 4

Is the structural and functional unit of all living things?

Cell

What does the nucleus contain that is a genetic material of DNA, with sections of what?

Genes

With no separating in the cell, the genetic material is loosed throughout the nucleus in this threadlike form of?

Chromatin

With the ongoing process of the cell dividing to form daughter cells, the chromatin coils and condenses, forming what?

Chromosomes

What does the nucleus contain that has one or more small spherical bodies which is consisted of proteins and RNA?

Nucleoli

What is the the double-layered porous membrane that is bound to the nucleus?

Nuclear Envelope

What is the the double-layered porous membrane that is bound to the nucleus?

Nuclear Envelope

What separates cell contents from the surrounding environment that provides a protective barrier and its main building blocks are phospholipids and globular protein molecules?

Plasma Membrane

What is called when the valuable cell proteins and other substances are kept with the cell and excreta, or wastes, pass to the exterior?

Selective Permeability

These are tiny fingerlike projections or folds that increase the surface area of the cell available for absorption?

Microvilli

Suspended in this cell content, the fluid cytoplasmic material, are many small structures called organelles?

Cytosol

What organelle are tiny spherical bodies composed of RNA and protein and is attached to a membranous structure in the cytoplasm?

Ribosomes

a.)This organelle location is on the membranous system of tubules that extend throughout the cytoplasm and b.)has two kinds of this organelle?

a. Endoplasmic Reticulum

b. Rough ER & Smooth ER

Which endoplasmic reticulum is studded with ribosomes and provides an area for storages and transport of the proteins made on the ribosomes to other cells?

Rough ER

Which endoplasmic reticulum, is a site of steroid and lipid synthesis, lipid metabolism, and drug detoxification?

Smooth ER

What organelle is a stack of flattened sacs with bulbous ends, is close to the nucleus, and plays a role in packaging proteins for export from the cell?

Golgi Apparatus

What organelle are membranous sacs that contains digestive enzymes and its function is to digest worn-out cell organelles and foreign substances enter the cell.

Lysosomes

What organelle are small lysosome-like membranous sacs that contains digestive enzymes oxidase enzymes that detoxify free radicals and is abundant in the liver and kidney cells?

Peroxisomes

What organelle are rod-shaped bodies with a double-membrane wall that contains enzymes that oxidize foodstuffs to produce cellular energy, and can be referred as “powerhouses of the cell?”

Mitochondria

What organelle are paired, cylindrical bodies that lie at right angles to each other, that is close to the nucleus, are composed of nine triplets of microtubules, and direct the formation of the mitotic spindle during the cell division, and form the cilia and flagella?

Centrioles