cell structure

Question 1

features that animal and plant cells have in common

Answer 1

cytoplasm
nucleus(nucleolus,chromatin,nuclear envelope)
mitochondria
ribosomes
smooth and rough endoplasmic recticulum (ER)
cell surface membrane
DNA
Golgi apparatus/golgi complex

Question 2

features in animal cells that aren’t present in plant cells

Answer 2

centriole

Question 3

features in plant cells that are absent in animal cells

Answer 3

plasmodesmata,cell wall, tonoplast , permanent vacuole, chloroplast

Question 4

function of plasmodesmata

Answer 4

links neighboring plant cells

Question 5

function of the cell surface membrane

Answer 5

• controls exchange activities between the cell and surrounding enviroment
• cell signaling
• anchoring the cytoskeleton
• cell to cell adhesion

Question 6

function of mitochondria

Answer 6

• is the site of aerobic respiration
• produces ATP (Adenosine trisphosphate)
• synthesizes lipids

Question 7

parts of a nucleus

Answer 7

nucleolus
chromatin
nuclear envelope

Question 8

function of centriole

Answer 8

formation of spindle fibres

Question 9

why do secretory cells have a large number of mitochondria?

Answer 9

because mitochondria produces ATP which is responsible for releasing energy

Question 10

organelles that are double membrane bound

Answer 10

mitochondria,chroloplast,nucleus,

Question 11

the cell wall of a prokaryotic cell contains

Answer 11

murein

Question 12

the cell wall of a eukaryotic cell contains

Answer 12

cellulose/chitin

Question 13

the function of vacuole

Answer 13

to balance osmotic properties in the cell

Question 14

difference between cell wall and cell surface membrane

Answer 14

cell wall is relatively thick and strong and FREELY PERMEABLE while cell surface membrane is thin and PARTIALLY PERMEABLE

Question 15

Organelles that contain 70s ribosomes

Answer 15

chloroplast and mitochondria

Question 16

the organelle that modifies and packages proteins to secretion

Answer 16

Golgi body/ Golgi complex

Question 17

the structure that synthesis rRNA and combines it with proteins

Answer 17

nucleolus

Question 18

types of ribosomes prokaryotic cells (cells without nuclei) have?

Answer 18

70s ribosomes

Question 19

types of ribosomes eukaryotic cells (have nuclei) have?

Answer 19

80s ribosomes

Question 20

size of prokaryotic cells

Answer 20

20nm

Question 21

size of eukaryotic cells

Answer 21

25-30nm

Question 22

characteristics of chloroplast

Answer 22

• give leaves its green color

* site where photosynthesis is carried out

Question 23

function of chromatin

Answer 23

contains DNA which controls cells activities

Question 24

functions of nucleolus

Answer 24

makes ribosomes using information from DNA

Question 25

how does a virus take over a body ?

Answer 25

the virus DNA takes over by taking over the protein synthesizing machinery of the host cell which helps them make new virus particles

Question 26

characteristics of virus

Answer 26

* size is 20-30nm * no nucleus(prokaryotic) * contains a protective layer of protein molecules called capsomere * doesn't have a cell structure * self replicating DNA or RNA that acts as its genetic code

Question 27

function of nucleolus

Answer 27

synthesis of rRNA

Question 28

where can cisternae be found in a cell?

Answer 28

ER and Golgi apparatus

Question 29

which organelles are responsible for the formation of hydrolytic enzymes found in lysosomes?

Answer 29

mitochondria , Golgi apparatus, endoplasmic recticulum

Question 30

In which animal cells would golgi body apparatus be most abundant?

Answer 30

goblet cells (where they secrete mucus which contains glycoprotein ,which is modified in the Golgi apparatus

Question 31

feature of all prokaryotic cells

Answer 31

presence of ribosomes

Question 32

why is sucrose solution used to store mitochondria?

Answer 32

to prevent changing in structure of the mitochondria

Question 33

an actively growing cell is supplied with radioactive amino acids ,which cell component will be the first to show an increase in radioactivity?

Answer 33

rough endoplasmic reticulum

Question 34

function of nucleolus

Answer 34

production of ribosomes

Question 35

roles of plasmodesmata

Answer 35

* allows signaling between cells | * links neighboring cells together to aid in transportation without crossing membranes

Question 36

cell wall is made of

Answer 36

cellulose

Question 37

the components present in prokaryotic cells ?

Answer 37

cytoplasm,DNA,ribosomes

Question 38

is mitochondria present in prokaryotic cells ?

Answer 38

no no no

Question 39

organelles found in a prokaryotic cell

Answer 39

ribosomes plasmic membrane DNA or RNA cytoplasm

Question 40

why do eukaryotic cells undergo division much slower than prokaryotic cells?

Answer 40

because eukaryotes break down the nuclear membrane during mitosis

Question 41

where is cristanae found in the cell?

Answer 41

Golgi apparatus and the ER

Question 42

which part of the cell is continuous with the endoplasmic recticulum?

Answer 42

nuclear envelope