MasteringBio: Ch. 4 Core Content

BioFlix Activity: Tour of a Plant Cell -- Organelle Functions Can you identify the functions of the parts of a plant cell?

1. Plant Cell Wall - Strong, Protective structure made from cellulose fibrils 2. Central Vacuole - regulates cytoplasm composition, creates internal pressure, and stores cell compounds 3. Chloroplast - Makes food by converting light energy into chemical energy 4. Mitochondrion - Converts chemical fuel into packets of chemical energy (ATP) that can power the cell 5. Golgi Apparatus - Modifies and packages proteins

Part J Which of these structures stores, modifies, and packages products? B A C D E

A

Part L _____ is/are identical in structure to centrioles. Nuclear envelopes Mitochondria Microfilaments Basal bodies Chromatin

Basal bodies

Part A Choose the letter that indicates the organelle that contains most of a cell's DNA. A B E C D

C

Part H The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter _____. A B C D E

C

Part C The DNA-containing region of this bacterial cell is indicated by the letter _____. A B C D E

D

Part N Which of these provides the cell with structural support? C A B E D

D

Part C Which of these is the double membrane that encloses the nucleus? D E A C B

E

Part F _____ are the sites of protein synthesis. Ribosomes Golgi apparatuses Peroxisomes Mitochondria Microfilaments

Ribosomes

Quiz Questions: What is the smallest entity that exhibits all the characteristics of life? a cell organelles macromolecules tissues

a cell

BioFlix Activity: Tour of an Animal Cell -- Cell Structures Can you label the structures of an animal cell?

a) Cytoskeleton b) Ribosomes c) Nucleus d) Smooth ER e) Cytosol f) Golgi Apparatus g) Rough ER h) Mitochondrion i) Plasma Membrane

BioFlix Activity: Tour of a Plant Cell -- Cell Structures Can you label the structures of a plant cell?

a) central vacuole b) cell wall c) chloroplast d) golgi apparatus e) Smooth ER f) Rough ER g) Nucleus h) Mitochondrion

Which one of the following groups is composed of prokaryotic cells? bacteria fungi protists animals

bacteria

Part F What name is given to the rigid structure, found outside the plasma membrane, that surrounds and supports the bacterial cell? capsule fimbriae cell wall flagella nucleoid region

cell wall

A plant cell has a versatile compartment that stores organic nutrients, absorbs water, and contains poisons that protect against plant-eating animals. This compartment is the _____. food vacuole chloroplast central vacuole cristae

central vacuole

Part D The _____ is composed of DNA and protein. flagellum centriole chromatin ribosome mitochondrion

chromatin

The function of the chloroplast is to __________. convert light energy to heat digest sugar to provide ATP energy for the cell contain the pigments that provide color for a plant convert light energy to chemical energy

convert light energy to chemical energy

The term used to indicate the part of a eukaryotic cell where organelles are suspended in fluid is _____. extracellular matrix nuclear membrane phospholipid bilayer cytoplasm

cytoplasm

Which of the following is stored in the lysosomes of the cell? material to make ribosomes RNA digestive enzymes proteins being prepared for secretion from the cell

digestive enzymes

The nuclear envelope, endoplasmic reticulum, Golgi apparatus, lysosomes, and vacuoles make up the __________. extracellular matrix nucleolus endomembrane system rough ER

endomembrane system

Part C Identify Structure A. phospholipid cholesterol extracellular matrix glycoprotein protein

glycoprotein

Coded genetic information is produced in the nucleus and transferred to the cytoplasm in a molecule called _____. extracellular matrix ribosome chromatin messenger RNA

messenger RNA

Part K Which of these are hollow rods that shape and support the cell? microtubules microfilaments chloroplasts plasma membrane peroxisomes

microtubules

Which of the following are the components of the cytoskeleton that help move chromosomes when cells divide? myosin filaments actin filaments intermediate filaments microtubules

microtubules

Part B Which of these organelles carries out cellular respiration? mitochondrion smooth endoplasmic reticulum ribosomes nucleolus chromatin

mitochondrion

The fluid mosaic model of the plasma membrane is characterized by __________. molecules moving freely past one another a bilayer composed of carbohydrate the presence of the cell's genetic information attachment to the cell wall in animal cells

molecules moving freely past one another

In some eukaryotic cells, cilia and flagella are motile, cellular appendages that aid the cell in __________. cellular respiration cell division photosynthesis movement

movement

Part D Where is a bacterial cell's DNA found? ribosomes nucleus peroxisome nucleoid region capsule

nucleoid region

Part E Ribosomal subunits are manufactured by the _____. rough endoplasmic reticulum smooth endoplasmic reticulum nucleolus lysosome peroxisome

nucleolus

Part M Which of these organelles produces H2O2 as a by-product? centrioles peroxisome mitochondrion nucleus flagellum

peroxisome

Part B Identify Structure D. phospholipid bilayer of membrane glycoprotein protein cholesterol extracellular matrix

phospholipid bilayer of membrane

Part G 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 nucleoid region ribosome fimbriae cell wall

plasma membrane

Part H The _____ is a selective barrier, regulating the passage of material into and out of the cell. lysosome chloroplast plasma membrane nucleus nuclear envelope

plasma membrane

Part B What is the function of a bacterium's capsule? DNA storage protein synthesis protection propulsion

protection

The Golgi apparatus mainly functions to modify _____. Genes the nucleolus mRNA proteins

proteins

Which of the following are the two main components of cellular membranes? proteins and phospholipids phospholipids and nucleotides carbohydrates and nucleotides proteins and nucleotide

proteins and phospholipids

Part E In a bacterium, where are proteins synthesized? ribosomes nucleus peroxisome nucleoid region capsule

ribosomes

What is the primary site of protein production in a eukaryotic cell? ribosomes the Golgi apparatus the nucleus vacuoles

ribosomes

Part G Which of these manufactures cellular membranes by adding membrane proteins andphospholipids to its own membrane? Golgi apparatus rough endoplasmic reticulum lysosomes nucleolus ribosomes

rough endoplasmic reticulum

Part I Where is calcium stored? smooth endoplasmic reticulum mitochondria rough endoplasmic reticulum centrioles microtubules

smooth endoplasmic reticulum

Activity: Membrane Structure Part A What is the function of Structure E? transport across the plasma membrane detection of environmental change structural support of the cell stabilization of the phospholipids cell-cell communication

stabilization of the phospholipids

What is the genetic center of the eukaryotic cell? the Golgi apparatus the lysosomes the nucleolus the nucleus

the nucleus