Mention at least one point that is common to living organisms and machines.

Where is the genetic material located in a cell?

Which type of plastid help in photosynthesis?

Which of the following are not present in the plant cells?

Chloroplast, Vacuoles, Mitochondira, Centrosome, Nucleus, Cell wall.

Which of the following are not present in an animal cell?

Chloroplast, Nucleus, Vacuoles, Cell wall, Mitochondria.

Which cell organelle is concerned with cell secretions?

Why are mitochondria able to make their own proteins?

Which cell organelles are called ribonucleoprotein particles?

Which cell organelle is rich in acid hydrolases?

Which structure of animal cell forms the asters of spindle?

Why is the cell called “the basic unit of life”?

Give the differences between diffusion and osmosis.

Which functions are performed by cell wall in plant cells?

What is the gene? Give its functions.

Name the two nucleic acids present in a cell. What are their functions?

Give the differences between cytoplasm and nucleoplasm.

Which type of plastids help in photosynthesis? Draw its diagram.

Draw and label a plant cell. Write the main function of:

Name the three major functional regions of cells. Briefly mention the components of each and explain the function of each.

Medical science took a giant step forward when it declared its capability to store stem cells. Stem cells can be used later on to treat certain diseases if need arises. Along with many Western countries. India also has the facility for storage of stem cell and for use of the same for therapy. Scientists’ are trying their best to maximize the benefit from storage of stem cells.

(i) What is the main source of stem cells?

(ii) What are the diseases that can be treated by storing stem cells?

(iii) What value is shown by the scientists?