Structures of Animal Cells Flashcards Preview

Biology 2015-2016 > Structures of Animal Cells > Flashcards

Flashcards in Structures of Animal Cells Deck (34):
1

Organelles

The specialized structures found within the cell

2

Nucleus

Control center of the cell

3

Cytoplasm

Portion of cell outside of nucleus

4

What organelles contains almost all of the cell's DNA

The nucleus

5

What is the nucleus surrounded by

A nuclear membrane dotted with pores

6

What is the nucleoplasm

The semi-liquid portion inside the nucleus

7

Function of the nucleolus

To manufacture the subunits that make up ribosomes

8

Point of the subunits (large subunit & small subunit) of the nucleolus

The subunits pass through the pores of the nucleus to the cytoplasm where they combine to form ribosomes

9

Functions of the nucleus

The carrier of genetic information
Controls reproduction of the cell
Directs protein synthesis

10

How does the nucleus direct protein synthesis

By sending messages to the ribosomes

11

Where can the ribosomes be found

Free floating in the cytoplasm or attached to the ER

12

Where is the site of protein synthesis

Ribosomes

13

All protein cells are made of what

Ribosomes

14

What is the endoplasmic reticulum

The internal membrane system

15

What does the ER connect

The nuclear membrane to the cell membrane

16

Smooth ER information

Has no ribosomes
Function is to make lipids used in cell membrane

17

Rough ER information

Has ribosomes attached
Makes proteins

18

Function of ribosomes on ER

Newly made proteins leave the ribosome and are inserted into spaces of ER

19

Proteins made in the rough ER go where

Golgi apparatus

20

Function of Golgi apparatus

To modify, sort, & and package proteins

21

What are the physical aspects of Lysosomes

Sacks in the cell filled with very strong digestive enzymes

22

What can Lysosomes digest

Carbs, proteins, and lipids into small molecules

23

Lysosomes destroy what

Old organelles

24

Why are the lysosomes surrounded by thick membrane

Because the cell would be destroyed if enzymes were released

25

What is the point of the vacuoles

The storage area inside the cell - to store water, salts, proteins, and carbs

26

What is the powerhouse of the cell

The mitochondria

27

What is the purpose of the mitochondria

Cellular respiration

28

What is cellular respiration

Process of converting glucose molecules into a usable form of energy for the cell

29

The mitochondria has an inner membrane & outer membrane - what are the folds called

Cristae and help increase the surface area for respiration

30

What is the cytoskeleton

An internal framework and support system with a network of protein tubes and fibers

31

About the microfilaments in the cytoskeleton

Solid, thread like, protein structures that help cells to move

32

About the microtubules int he cytoskeleton

Tubes that help cell shape, separation of chromosomes during cell division, and with the formation of the cilia and flagella

33

Another name for the cell membrane

The plasma membrane

34

Functions of the cell mmbrane

To maintain the shape of the cell, separate one cell from the next, and regulate what goes in and out of the cell