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WorksheetsCells - Cell Theory and Cell Structure
Total questions: 17
Worksheet time: 49mins
Cellular respiration is to mitochondria as photosynthesis is to
plants
microtubules
chloroplasts
ribosomes
Identify the CORRECT statement regarding viruses
(i) they are considered non-living outside the cell
(ii) they have their own cell synthesising machinery
(iii) they don’t have a cell membrane like other organisms
(iv) they obey central dogma of life
(i) & (ii)
(i) & (iii)
(ii) & (iii)
(i) & (iv)
Which of the following accurately describes the cell membrane?
It is composed of proteins floating in a glycolipid layer
It separates the cell from its surroundings
It has a hydrophillic interior because fatty acids form the bilayer
It controls the movement of wastes into the cell
Which one of the following characteristics must a cell have in order to be classified as a eukaryotic cell?
Two or more circular chromosomes
No membrane bound organelles
A cytoskeleton attached to the cell membrane
A cell wall made of cellulose
The movement of chloroplasts within the cytoplasm of some green plants maximises the exposure of the chloroplasts to sunlight. Which one of the following cell structures enables this movement?
endoplasmic reticulum
golgi body
cell membrane
cytoskeleton
Hydrogen cyanide (HCN) is a highly toxic substance that can kill human beings within 60 seconds. HCN inhibits enzymes that are involved in the production of ATP in the presence of oxygen. Which one of the following cell structures would be most affected by HCN?
cell membrane
mitochondria
nucleus
ribosome
Which one of the following is evidence that prokaryotic cells existed before eukaryotic cells?
Prokaryotic organisms are single-celled and less complex
The oldest known prokaryotic fossils are at least 3.5 billion years old whereas the oldest known eukaryotic fossils are at least 1.5 billion years old.
Prokaryotic organisms are able to live and thrive is hostile enviroments such as thermal vents.
The cells of prokaryotic organisms do not contain membrane-bound organelles whereas the cells of eukaryotic organisms do
