Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrangements. This leads us to which of the following as a probable hypothesis?

1.	Disruption of one of these types of structure should necessarily disrupt each of the others as well.
2.	Loss of basal bodies should lead to loss of all cilia, flagella, and centrioles.
3.	Motor proteins such as dynein must have evolved before any of these four kinds of structure.
4.	Natural selection for motility must select for microtubular arrays in circular patterns.

The presence of cholesterol in the plasma membranes of some animals.

Prokaryotic cells have something unique in the form of:

1. Inclusion bodies

2. Plasmids

3. Cell wall

4. 70 S ribosomes

Gas vacuoles allow cyanobacteria to:

The lipid component of the plasma membrane mainly consists of:

1. Triglycerides

2. Cholesterol

3. Phosphoglycerides

4 Proteins

Carotenoid pigments are found in:

1. Only I
2. Only I and II
3. Only II
4. I, II and III

Microbodies, which help to convert stored lipids into carbohydrates so they can be used for plant growth, are known as:

1. Peroxisomes

2. Sphaerosomes

3. Glyoxysomes

4. Lysosomes

Ribosomes are produced in

1. Nucleolus

2. Mitochondria

3. Cytoplasm

4. Golgibody

All the following are the part of a eukaryotic cell endomembranous system except:

1. Vacuole

2. Lysosome

3. Golgi complex

4. Mitochondria

A feature unique to prokaryotes would be:

1. A cell wall not made up of cellulose

2. An extrachromosomal plasmid DNA

3. A cell membrane of peptidoglycan

4. Presence of inclusions