1st sem 3 cells- nesa review-set 4

8/11/2019 1st Sem 3 Cells- Nesa Review-set 4

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BIOLOGY SET #4


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SINGLECELL

MANY CELLS


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1. prokaryoteorganisms whose cells

lack a nucleus and other organellesnot very complex

unicellular (1 prokaryote byitself is an organism)

the first type of cells were

prokaryotesexample: bacteria


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2. Eukaryoteorganisms whose cells

contain a nucleus and organellesmore complex

can be unicellular ormulticellular (many

eukaryotes work together

to make up 1 organism)larger than a prokaryote

examples plant and animal

cells


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1. A single-celled organism that does not have a nucleusis a(n)

2. An organism made of one or more cells that has anucleus is a(n)

3. What type of cell has complex, specialized organelles?


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*Found only ineukaryotic cells,and contains DNA

*Genetic code tellsthe cells parts whatto do


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Nucleus is surrounded

by:NUCLEAR MEMBRANE*ALSO KNOWN AS NUCLEARENVELOPE*CONTROLS WHAT GOES IN

AND OUT OF NUCLEUS.


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1. GIVE A FUNCTION OF THE NUCLEUS.

2. TRUE OR FALSE: THE NUCLEOLUS IS WHERELIPIDS ARE MADE.

3. WHAT IS ANOTHER NAME FOR THE NUCLEARMEMBRANE?


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*SURROUNDED BY ADOUBLE MEMBRANE

*Converts energy storedin foodsinto compoundsthat are more convenientfor the cell to use, whichis calledATP.


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Uses energy from

sunlight to makeown food (glucose)

in the process of

photosynthesis.

Double membrane


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1. Organelle that uses energy from organic compounds tomake ATP

2. The Mitochondria and Chloroplast are considered to be________________membrane bound organelles.

3. Which structure is highly needed for the process ofphotosynthesis?


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Gets rid of unwanted and old

materials from the cell

Makes proteins

High way system of the cells,transports materials within the cell


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Ribosomes: place where proteins and enzymes

(speed up bodies chemical reactions) are made can be found floating in the cytoplasm can also be found attached to the endoplasmic reticulum


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*2 KINDS: SMOOTH or ROUGH

* Endoplasmic Reticulum (ER):a system of membranes that

aids in making proteins andproviding a highway systemconnecting many organellestogether.


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1. Name the two types of ER.

2. Cell structure on which proteins are made:

3. Membranes that move proteins and other substancesthrough the cell like a highway system.


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***Active transport requires energyfrom the cell.***

What are some specific types of activetransport?


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Isotonic solution

*water goes in and out of the cellat the same rate

Hypertonic solution-

*water moves out of cell

Hypotonic solution-*water moves into cell


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1. Simple diffusion- the gradual mixing of two ormore substances by random motion

2. Osmosis- the diffusion of water across amembrane

3. Facilitated diffusion - when large substancesmove across the membranethrough protein carriers


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1. Endocytosisprocess in which cell ingest (takein) outside fluid, and other large bulk particles

part of the cell membrane pinches off and the outsidematerials are held in avesicle

2. Exocytosis- when a vesicle fuses with the cellmembrane and releases its contents out of the cell


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1. THE FOLLOWING PICTURE IS WHAT TYPE OF ACTIVETRANSPORT?

2. OSMOSIS IS THE TRANSFER OF_______________________ACROSS THE CELL MEMBRANE?

3. WHAT TYPE OF SOLUTION TAKES IN WATER AND MAKES THE

CELL LARGER?

1st sem 3 cells- nesa review-set 4

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