A Flashcards
What is the cytoplasm
A jelly like substance where most of the chemical rections happen
Where do most of the chemical reactions take place
Cytoplasm
What is the nucleus
Contains genetic material like DNA which controls the cells activities
What’s the cell membrane
Controls what goes in and out of the cell
How can the cell membrane let some things through and not others
It’s structure is permeable to some substances but not to others
What contains the enzymes for respiration
Mitochondria
What are ribosomes
Tiny structures where protein synthesis occurs
What realises the most energy during respiration
Mitochondria
Are most sides specialised
Yes
Do plant cells have a nucleus
Yes
What do plant cells have that animal cells do not
Chloroplasts
Vacuole
Cell wall
What do cell walls do
Strengthens the cell and supports the plant
What are cell walls made of
Cellulose fibres
Are chloroplasts organs
No they are organelles
are chloroplasts organelles
Yes
What contains the enzymes needed for photosynthesis
Chloroplasts
What are permanent vacuoles filled with
Cell sap
What does a permanent vacuole do
Filled with cell sap to help keep the cell turgid.
How many pairs of chromosomes are there in a human body
23
How many chromosomes are there in total in a human body
46
True or false: Females are referred to as XY
False females are referred to as XX as they have two X chromosomes
What chromosomes are there in a male
XY
True or false chromosomes in a male are referred to asXY
True
Is dna in a cell nucleus
Yes
