Eukaryotic Cells And Organelles

Question 1

Describe the nucleus and its function

Answer 1

Large organelle surrounded by a nuclear envelope contains many pours. Contains chromosomes and nucleolus.

Controls cell activities. DNA contains instructions to make protiens. Pores allow substances to move. Nucleolus makes ribosomes

Question 2

Structure and function of mitochondrial

Answer 2

Oval shaped, double membrane, inner folds cristae. Matrix has enzymes for respiration

Aerobic respiration ATP produced

Question 3

Structure and function of chloroplast

Answer 3

Double membrane
In plants
Thylakoid membranes stacked up to form grana linked by lamellae

Photosynthesis
In stroma and grana

Question 4

Structure and function of Golgi apparatus

Answer 4

Fluid filled membrane bound flatterend sacs

Processes and packages lipids and protiens also makes lysosomes

Question 5

Give a description of a eukaryotic cell?

Answer 5

Complex cells

Make up animals and plants and algae and fungi

Question 6

Structure and function of ribosome

Answer 6

V small organelle that either floats free in cytoplasm or is attached to the rough er made up of protiens and RNA

Site where protiens are made

Question 7

Structure and function of smooth ER

Answer 7

Synthesis and processes lipids

Question 8

How are epithelial cells in the small instestine specialised to absorb food efficiently.

Answer 8

Villi increase surface area
Micro villi
Lots of mitochondria provide energy for transport