BIOLOGY

Question 1

Cell Theory

Answer 1

All living organisms are composed of cells
the cell is the basic unit of life
Cells arise from pre-existing cells

Question 2

All cells contain smaller parts called oraganenells these organelles do

Answer 2

intake of nutrition
movement
growth
response to stimuli
exchange of gases
waste removal
reproduction

Question 3

All Cells have

Answer 3

Cell membrane-boundary of cell “security entry” and controls what enters a leaves and is fluid like bubble soap

Nucleus - control centre, gives orders to the cell “head office”, contains DNA, surround by the nuclear envelope, contains nucleolus (makes ribosomes)

Cytoplasm - fluid within the cell “hallways and rooms” chemicals reactions take place here and organelles suspend it

Question 4

Mitochondria

Answer 4

“power house of the cell” looks like a kidney bean
provides energy for chemical reactions

use proteins to break down sugars and produce cellular energy in the form of ATP.

Question 5

Endoplasmic Reticulum

Answer 5

“Manufacturing center”

• rough ER- contains ribosomes which makes protein
• Smooth Er- makes other molecules and The smooth ER also regulates and releases calcium ions and processes toxins.

ER= endoplasmic reticulum

to produce proteins for the rest of the cell to function.

Question 6

Lysosome

Answer 6

only found in animals cells 
"recycling plant"
can breakdown any molecule so that parts can be reused 
digestive function in some cells
-plays a role in apotptosis

Question 7

Golgi body

Answer 7

“packing Center”
flattened stacks of membrane
packing and distribution
creates transport vesicles

The Golgi apparatus gathers simple molecules and combines them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and either stores them for later use or sends them out of the cell.

Question 8

vesicles

Answer 8

“transport”
small membranes bound transport

google -
Vesicles are tiny sacs that transport material within or outside the cell.

Most molecules, including proteins, are too large to pass directly through membranes. Instead, large molecules are loaded into small membrane-wrapped containers called vesicles

Question 9

Vacuole

Answer 9

“storage”

-large membrane-bound sac for storage of water, food, wastes. (Plant cells have one large central vacuole, animal cells have many little vacuoles)

Question 10

cytoskeleton

Answer 10

“frame of the factory”

network of fibres for shape

Question 11

Animal vs plant cells

Answer 11

ANIMALS

• contain centrioles used in cell division
• has several small vacuoles
• has lysosomes

Plant Cells
-does not have centrioles or lysosomes
-has one large vacuole
contains 3 additional organelles

1) Central Vacuole
2) Cell wall = Cellulose (IMPORTANT)
-structure support
3) Chloroplasts
-perform photosynthesis
Converts and h20 and co2 to into glucose

Question 12

Ribosomes

Answer 12

Small dense organelles attached to the rough e do plastic reticulum, where proteins are assembled, these little guys produce protein

Question 13

Chromosomes and when are they visible

Answer 13

Long pieces of DNA. Only visible during mitosis

Question 14

Centriole

Answer 14

(Animal) pair of structures that are in cell division in animals and

They are there to help the cell when it comes time to divide. They are put to work in process of mitosis

Question 15

Genes

Answer 15

Each section of dna that codes for a particular protien

Question 16

Nucleolus

Answer 16

The nucleolus is a region found within the cell nucleus that makes the cell’s ribosomes

Question 17

anabolism
catabolism
metabolism

Answer 17

anabolism= synthesis of simple molecules
catabolism= break down of simple cells
metabolism = transforms food into energy, involves both anabolism and catabolism

Question 18

how do find magnification of microscopes and do this equation
if a microscope has a 10x objective lens in place and a 10x ocular lens, what is total magnification

Answer 18

100x

Question 19

what organelle produces ribsomes

Answer 19

nucleolus