D. SHORT-ANSWER QUESTIONS (TYPE II): Answer these questions.
1. What are the lower levels of organization in a multicellular organism? Are these levels also
present in unicellular organisms?
2. Draw a labelled diagram to show the general structure of a cell.
3. What are the differences between plant and animal cells?
4. What is meant by the term cell division? Why is cell division necessary?
E. LONG-ANSWER QUESTIONS: Answer these questions.
1. What are the main points of the cell theory of life?
2. What are the functions of the following in a cell?
a. cell membrane
b. cytoplasm
c. nucleus
d. chromosomes
e. mitochondria f. vacuoles
3. With the help of examples, show the variation in shapes and sizes of cells.
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1. cell
3. cellwall is in plant cell only
4.regeneraton
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Short questions
ques 1 Lower levels of organization in multicellular organisms are cells, tissues and organs. These are followed by organ system and finally organisms. These levels are absent in unicellular organisms as they have only one cell and therefore no tissue and further levels.
ques 2. see pictures...
ques 3.plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.
ques 4.Cell division serves as a means of reproduction in unicellular organisms through binary fission. ... For growth to occur in living organisms, the number of cells have to increase through cell division until it reaches its maximum size. The human body also repairs injuries by means of cell division
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