cells and organelles Flashcards
from Alistairs question booklet - theme 1
Prokaryotes do not
a) contain membranous organelles
b) have a circular chromosome c) form multicellular organisms
d) contain 70S ribosomes
e) have a smaller size than eukaryotes
c
A normal size for a virus is
a. 200nm
b. 30μm
c. 0.2nm
d. 50nm
e. 1μm
d
A normal size for a human cell is
a. 200nm
b. 30μm
c. 0.2nm
d. 50nm
e. 1μm
b
The smallest size resolvable by electron microscope is about
a. 200nm
b. 30μm
c. 0.2nm
d. 50nm
e. 1μm
c
The smallest size resolvable by light microscope is about
a. 200nm
b. 30μm
c. 0.2nm
d. 50nm
e. 1μm
a
A normal size for a bacterium is a. 200nm
b. 30μm
c. 0.2nm
d. 50nm
e. 1μm
e
Cells with dimensions larger than 50μm
a. are found in the nervous system
b. are always multinucleate
c. must be joined to other cells by gap junctions
d. do not exist
e. are found only in disease
a
Peroxisomes are
a. the site of ribosome subunit assembly
b. bound by a double membrane interrupted by many pores
c. the site of synthesis of lipids and steroids
d. structures with a cis and a trans face, which create lysosomes e. the site of phospholipid synthesis
e
The nucleolus is
a. the site of ribosome subunit assembly
b. bound by a double membrane interrupted by many pores
c. the site of synthesis of lipids and steroids
d. a structure with a cis and a trans face, which creates lysosomes e. the site of phospholipid synthesis
a
Smooth endoplasmic reticulum is
a. the site of ribosome subunit assembly
b. bound by a double membrane interrupted by many pores
c. the site of synthesis of lipids and steroids
d. a structure with a cis and a trans face, which creates lysosomes e. the site of phospholipid synthesis
c
Mitochondria do not
a. occur in greater numbers in cells with a high rate of oxidative respiration
b. have a double plasma membrane
c. contain their own DNA which encodes all their proteins d. have infoldings of membrane known as ‘cristae’
e. compare in size to a prokaryote
c
A cell nucleus is
a. 3-10 μm in diameter
b. 0.5-1.5 μm in diameter
c. a stack of flattened, curved sacs d. a network of sacs lined by dots
e. 80-800 nm in diameter
a
A peroxisome is
a. 3-10 μm in diameter
b. 0.5-1.5 μm in diameter
c. a stack of flattened, curved sacs d. a network of sacs lined by dots
e. 80-800 nm in diameter
b
A lysosome is
a. 3-10 μm in diameter
b. 0.5-1.5 μm in diameter
c. a stack of flattened, curved sacs d. a network of sacs lined by dots
e. 80-800 nm in diameter
e
Zellweger syndrome affects
a. lysosomes
b. the cell nucleus
c. the cytoskeleton
d. peroxisomes
e. mitochondria
d
