cells

Question 1

rough endoplasmic reticulum

Answer 1

Ribosomes attach here and translation takes place. Proteins are packed into vesicles here. folds and processes proteins made on ribosomes

Question 2

smooth endoplasmic reticulum

Answer 2

synthesises lipids, phospholipids and steroids

Question 3

Golgi apparatus

Answer 3

vesicles join and fuse onto here. Proteins are further modified. it processes and packs proteins

Question 4

different sides of Golgi

Answer 4

cis- side where vesicles join
trans- side where vesicles leave

Question 5

cytosol

Answer 5

enzymes and biochemicals dissolved in water

Question 6

lysosomes

Answer 6

vesicles containing a digestive enzyme bound by a single membrane

Question 7

what’s the inner membrane of the mitochondria folded into

Answer 7

cristae

Question 8

DNA, ways it is layed out

Answer 8

wrapped around histone (a protein)
before splitting the DNA is indistinct and is called chromatin

Question 9

Nucleolus

Answer 9

Ribosomes are assembled here

Question 10

Transport vesicles

Answer 10

help move materials, such as proteins and other molecules, from one part of a cell to another.

Question 11

cytoskeleton

Answer 11

Network of interlinking protein filaments that maintain the shape of the cell, transport organelles and provides mechanical support for things such as division

Question 12

three types of cytoskeleton

Answer 12

actin filaments, intermediate filaments and microtubules

Question 13

nucleus

Answer 13

nuclear envelope-double membrane
pores-enable molecules to leave and enter
nucleolus- site of ribosome production

Question 14

mitochondria

Answer 14

double membrane inner membrane folds to form projections called cristae with the matrix on the inside containing the enzymes for respiration

Question 15

different s of ribosomes

Answer 15

80 s in cytoplasm and 70s in mitochondria and chloroplast

Question 16

centrioles

Answer 16

hollow cylinders containing a ring of microtubules arranged at right angles to each other. involved in cell division

Question 17

cell wall

Answer 17

made of cellulose microfibrils, strengthens cells and prevents bursting due to osmosis

Question 18

chloroplast

Answer 18

small, flat organelle
double membrane
thylakoid membranes stacked up to form grana
and linked by lamellae
site of photos

Question 19

plasmodesmata

Answer 19

small channels that pass through cell walls of adjoining cells to allow communication between plant cells

Question 20

vacuole

Answer 20

fluid-filled sac present in plant cells surrounded by a membrane called the tonoplast
coolers cells to attract pollinating I
temporary food store
provide support by being turgid

Question 21

bacteria

Answer 21

unicellular about 1-5 microm diam
circular dna
no organelles with double membrane

Question 22

bacteria cell walls are made of

Answer 22

peptidoglycan

Question 23

what unique organelles do bacteria have

Answer 23

capsule/slime layer
plasmid
flagellum
pili

Question 24

virus structure

Answer 24

nucleic acid (RNA/DNA) enclosed in a protective protein coat called a capsid

Question 25

some viruses have an

Answer 25

outer envelope made of phospholipids

Question 26

magnifications

Answer 26

size of image/ size of actual object