Cell structure

Question 1

What is the cytoplasm of RBC filled with ?

Answer 1

Hemoglobin

Question 2

do bacteria or viruses contain cell surface membranes; capsid; nucleus; cytoplasm? [2]

Answer 2

bacteria have cell surface membranes and a cytoplasm;
viruses have a capsid;

Question 3

The structure of eukaryotic cells, restricted to the structure and function of:

Answer 3

cell-surface membrane
nucleus (containing chromosomes, consisting of protein-bound, linear DNA, and one or more nucleoli)
mitochondria
chloroplasts (in plants and algae)
Golgi apparatus and Golgi vesicles
lysosomes (a membrane-bound organelle that releases hydrolytic enzymes)
ribosomes
rough endoplasmic reticulum and smooth endoplasmic reticulum
cell wall (in plants, algae and fungi)
cell vacuole (in plants).

Question 4

Prokaryotic cells are much smaller than eukaryotic cells. They also differ from eukaryotic cells in having:

Answer 4

cytoplasm that lacks membrane-bound organelles
smaller ribosomes
no nucleus; instead they have a single circular DNA molecule that is free in the cytoplasm and is not associated with proteins
a cell wall that contains murein, a glycoprotein.

Question 5

In complex multicellular organisms, eukaryotic cells become specialised for specific functions. What are specialised cells?

Answer 5

Specialised cells are organised into tissues, tissues into organs and organs into systems.

Question 6

In addition, many prokaryotic cells have:

Answer 6

one or more plasmids
a capsule surrounding the cell
one or more flagella.

Question 7

What are Viruses?

Answer 7

Viruses are acellular and non-living. The structure of virus particles to include genetic material, capsid and attachment protein.