State the function of chromosome in a cell. 1 2.Write two similarities and one dissimilarity between mitochondria and plastid. 3 3.Name the cell organelle that you would associate with elimination of old and worn out cells. 1 4.List two types of plastids and state one function of each. 2 5.Name two cell organelles that contain their own genetic material. 1 6.Division of labour exists even at intracellular level, justify the statement by giving two examples. 2 7.Identify and name the following cell structure: 1 a)the undefined nuclear region of prokaryotic cell b)site of energy release inside the cell 8.a) List any two structural differences and two similarities between animal cell and plant cell. 3 b) What would happen if an animal cell is kept in distilled water for 24 hrs. 9. When a living plant cell loses water throiugh osmosis, there is contraction of the contents of the cell away from the cell wall. What is this phenomenon called? 1 10.a) Write two points of difference between nuclear region of bacterial cell and animal cell. 3 b) Which structure present in the nuclear region of living cell bears genes? 11.List any two single celled organisms. 1 12.Draw a diagram of plant cell and label its any two parts.
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Answers
Answer:
chromosomes are thread like structures which which are found in fertilized egg carry genetic particles for inheritance to of spring
Answer:
1.Ans- Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
2. Similarities are:- a. Mitochondria and Plastids both have double layer of membranes.
b. These both have DNA and ribosomes of their own.
Dissimilarity:- Mitochondria produces energy in the form of ATP(Adenosine tri-phosphate) whereas Plastids manufacture the food.
3.Lysosome is the cell organelles.
4.There are mainly three types of Plastids: a. Chloroplast, b. Phaeoplast, and c. Rhodoplast
a.Chloroplast is the site of Photosynthesis.
b. Phaeoplast is a brown color Plastid used to give color to branches.
c. Rhodoplast is a red color Plastids that gives Color to fruits.
5. Mitochondria and Chloroplast(Plastids) have own genetic material.