Question

ich of the following is a eukaryotic characteristic? A) binary fission B) membrane-bounded nucleus C) little processing of RNA D) 70S ribosomes E) none of the above 1. Whi 2. The size range of most bacterial cells is A) 1-10 nm B)1-5 μm C) 10 -50 um D) 0.1-0.5 mm E) 50-100 mm 3. Which of the following organelles is not generally found in animal cells? A) food vacuole B) centriole C) endoplasmic reticulum D) central vacuole E) mitochondrion 4. If the surface area of a cell increases by a factor of 100, the volume of that cell will A) remain the same. B) increase by a factor of 100. C) increase by a factor of 1000.

Answer 1

1. Membrane bound nucleus

Eukaryotes means true nucleus. All organelles are membrane bound.

2. Commonly it is 0.2 to 1 microns.

Nearby option is 1 to 5 microns.

3. Food vacuole.

It is found in amoeba and paramecium. Central vacuole are present in both animal and plant cells.

4. Say side is A

Area= A*A

Volume = A*A*A

Area = 100

So A = 10

Volume = 1000

Answer : increase by a factor of 10

5. Glycosylation of proteins

Though packaging of lipids is one of the functions of Golgi, the major function is processing and sorting proteins.