Question 1. Nucleus is separated from cytoplasm by (a) nuclear membrane (b) nucleoplasm (c) organs (d) cell membrane Question 2. The liquid material in the nucleus is (a) chromosomes (b) bacteria (c) nucleoplasm (d) nucleolus Question 3. Tissues combine to form (a) nucleus (b) cells (c) organism (d) organs Question 4. Cells present in living organism differ in (a) numbers (b) shape (c) size (d) all of these Question 5. Cells which lack nuclear membrane are (a) eukaryotic cells (b) prokaryotic cells (c) single cells (d) multicells Question 6. The control centre of all the activities of a cell is (a) nucleus (b) nucleoplasm (c) cytoplasm (d) organelles Question 7. The coloured organelles which are found in plants only are (a) chlorophyll (b) plastids (c) vacuoles (d) WBC Question 8. Genes are located in (a) chrpmosomes (b) plastids (c) cytoplasm (d) lysosome Question 9. A group of similar cells combine to form (a) tissue (b) organ (c) organisms (d) organelles Question 10. The organism containing only a single cell is called (a) unicellular organism (b) multicellular organism (c) organelle (d) all of these Question 11. Cell walls is found in (a) plant cells only (b) animal cells only (c) both (a) and (b) (d) none of them Question 12. The empty blank looking structures in the cytoplasm is (a) vacuoles (b) plastids (c) plasma membrane (d) nucleus Question 13. The other name of cell membrane is (a) plasma membrane (b) cell wall (c) nuclear membrane (d) none of these Question 14. The basic structural and functional unit of all living organism is (a) cell (b) cell wall (c) cell membrane (d) chloroplasts Question 15. Chromosomes are found in (a) nucleus (b) nucleolus (c) nucleoplast (d) vacuole II. Fill in the Blanks Fill in the blanks with suitable word/s. 1. Cells are the __________ unit of all living organisms. 2. __________ cells are branched. 3. Amoeba has __________ shape. 4. The __________ cell transfers the messages. 5. __________ is a group of tissues. 6. Protoplasm is __________ inside the cell. 7. Eukaryotes cells have a well-developed __________. 8. The jelly-like substance found between the nucleus and the cell-membrane is __________ 9. Nucleus is separated from the cytoplasm by __________. 10. An __________ is a group of organs. 11. __________ are present in plant cells but in animal cells. 12. __________ is the process of making food in plants. 13. __________ is absent in animal cell. 14. The kitchen of plant cell is __________. 15. __________ is the power house of the cell. IV. True or False State whether the given statements are true or false. 1. Cytoplasm is not a part of cell. 2. Cell wall surrounds the cell membrane. 3. A group of similar cells is called tissue. 4. Tissues combine to form an organism. 5. Cell are of different sizes. 6. Chloroplasts are blue in colour. 7. Plastid occur in plant cells only. 8. Chromosomes contain basic hereditary units called genes. 9. Nucleus is the control unit of cell. 10. The shape and size of cell is related to its function. IV. SHORT ANSWER QUESTIONS 1) Which organism is more efficient in its functioning—unicellular or multicellular? Why? 2) What would happen if animals have cell wall? 3) Cells consist of many organelles, yet we do not call any of these organelles as structural and functional unit of living organisms. Explain. 4) Why plant cells need cell walls? Differentiate between (a) Cell wall and cell membrane (b) Vacuole in a plant cell and an animal cell (c) A tissue and an organ Define cell membrane and state its functions. Define nucleus and state its major parts. Name the following parts of a cell: Controls the function of a cell. Selectively allows things to get in and out of the cell. Transfer characters from parents to off springs.
Answers
Answer:
You should ask one question at a time. You are asking so many questions and also not giving enough points.
1. (a) nuclear membrane
2.(c) nucleoplasm
3. (d) organ
4. (d) all of these
5. (b) prokaryotic cell
6.(a) nucleus
7.(b) plastids
8.(a) chromosomes
9.(a) tissue
10.(a) unicellular organism
11.(a) plant cell only
12.(a) vacuoles
13.(a) plasma membrane
14.(a) cell
15.(a) nucleus
Answers to the given questions are as follows:
1. Nucleus is separated from the cytoplasm by the nuclear membrane. (a)
2. The liquid material in the nucleus is nucleoplasm. (c)
3. Tissues combine to form organs. (d)
4. Cells present in living organisms differ in all of these. (d)
5. Cells which lack nuclear membrane are prokaryotic. (b)
6. The control center of all the activities of a cell is the nucleus. (a)
7. The colored organelles which are found in plants only are plastids. (b)
8. Genes are located in chromosomes. (a)
9. A group of similar cells combines to form tissue. (a)
10. The organism containing only a single cell is called the unicellular organism. (a)
11. Cell walls are found in plant cells only. (a)
12. The empty blank-looking structures in the cytoplasm are vacuoles. (a)
13. The other name of the cell membrane is the plasma membrane. (a)
14. The basic structural and functional unit of all living organisms is the cell. (a)
15. Chromosomes are found in the nucleus. (a)
Fill in the blanks with suitable word/s:
1. Structural and functional.
2. Nerve cells.
3. Irregular.
4. Nerve cells.
5. Organ.
6. Plant and animal cells.
7. Membrane-bound nucleus.
8. Cytoplasm.
9. Nuclear membrane.
10. Organ system.
11. Mitochondria and nucleus.
12. Photosynthesis.
13. Mitochondria and nucleus.
14. Plastids.
15. Mitochondria.
True or False:
1. False.
2. True.
3. True.
4. True.
5. True.
6. False.
7. True.
8. True.
9. True.
10. True.
SHORT ANSWER QUESTIONS:
1. Multicellular organisms are more efficient than unicellular organisms.
2. The animal would become rigid and stiff would not be able to do all the necessary things it needs to do to survive, eg, run, prey, etc.
3. Because they can perform their functions only when they are within a living cell.
4. The cell walls serve as the supportive skeletons hard boundary for plant cells.