Life processes mcq

2. Q1. READ THE FOLLOWING STATEMENTS:
1. These cells are exclusively unicellular.
2. These cells have no nucleus..
3. The cell size is small and ranges from 0.1 to 0.5 µm in diameter.
4. Its examples include archaea, bacteria, and cyanobacteria.
A Prokaryotic
B Eukaryotic
C NONE OF THE ABOVE

3. Q2. READ THE FOLLOWING STATEMENTS:
1. These cells are unicellular or multicellular.
2. These cells have nucleus..
3. The cell size is large and ranges from 10 μm – 100 μm in diameter.
4. Its examples include Plant and Animal cells
A Prokaryotic cell
B Eukaryotic cell
C NONE OF THE ABOVE

5. Q3.READ THE FOLLOWING STATEMENTS:
1. It is the site of aerobic respiration in cells
2. It is called the “powerhouse of the cell” because it is responsible for
producing energy-rich ATP (adenosine triphosphate) molecules.
3. They are double membrane-bound organelles present in the
cytoplasm of all eukaryotic cells
4. It plays an important role in apoptosis or programmed cell death.
A CHLOROPLAST
B PLASTIDS
C PLASTIDS
D MITOCHONDRIA

6. OTHER FACTS
1. Acts as the site of aerobic respiration and produces
cellular energy in the form of ATP.
2. The inner membrane of mitochondria is rather complex
in structure and has many folds that form a layered
structure called cristae, and this helps in increasing the
surface area inside the organelle.
3. Regulates the metabolic activity of the cell
4. Promotes the growth of new cells and cell multiplication
5. Helps in detoxifying ammonia in the liver cells
6. It has its own genetic material

7. Q4. READ THE FOLLOWING STATEMENTS:
1. It controls the movement of substances in and out of the cells and
separates the cell from the external environment.
2. It is present in all the cells.
3. It is the outer covering of a cell within which all other organelles, such as
the cytoplasm and nucleus, are enclosed.
4. It is a porous membrane (with pores) which permits the movement of
selective substances in and out of the cell.
A CELL MEMBRANE
B CELL WALL
C CYTOPLASM

9. Q 5. READ THE FOLLOWING STATEMENTS:
1. It is made up of cellulose, hemicellulose and pectin.
2. It is present “exclusively” in plant cells.
3. It is also the outermost layer of plant cells.
4. It provides shape and support to the cells and protects them from
mechanical shocks and injuries
5. It is the non-living part of the cell
A CELL MEMBRANE
B CELL WALL
C CYTOPLASM

11. Q 6. READ THE FOLLOWING STATEMENTS:
1. The are present both in plant and animal cells.
2. They are jelly-like substances, found between the cell membrane
and nucleus.
3. They are mainly composed of water, organic and inorganic
compounds.
4. It is one of the essential components of the cell, where all the cell
organelles are embedded.
A PLASMA MEMBRANE
B CELL WALL
C CYTOPLASM

12. Q 7. READ THE FOLLOWING STATEMENTS:
1. It is a double-membrane organelle found in all eukaryotic cells.
2. It is the largest organelle, which functions as the control centre of the
cellular activities and is the storehouse of the cell’s DNA.
3. It is dark, round, surrounded by a nuclear membrane which is a porous
membrane (like cell membrane)
4. Nucleolus, or Tiny spherical entities, are found inside them
A PLASMA MEMBRANE
B CELL WALL
C CYTOPLASM
D NUCLEUS

14. Q. 8 READ THE FOLLOWING STATEMENTS:
1. They are made of proteins and ribonucleic acid (RNA).
2. They help in protein synthesis.
3. They are found in both type of cells Prokaryotic
Eukaryotic
4. They are composed of two subunits i.e small and large.
A PLASTIDS
B MITOCHONDRIA
C NUCLEUS
D RIBOSOMES

16. Q.9 READ THE FOLLOWING STATEMENTS:
1. They are called as “cell’s post office” as they are involved in the
transportation of materials within the cell.
2. They are mainly composed of a series of flattened, stacked pouches
called cisternae.
3. This cell organelle is primarily responsible for transporting, modifying,
and packaging proteins and lipids to targeted destinations.
4. They are found within the cytoplasm of a cell and is present in both
plant and animal cells i.e eukaryotic cells
A PLASTIDS
B MITOCHONDRIA
C RIBOSOMES
D GOLGI APPARATUS

18. Q10. READ THE FOLLOWING STATEMENTS:
1. They are tiny, circular-shaped, single membrane-bound organelles,
filled with digestive enzymes.
2. The key function of is digestion and removal of waste and digest worn-
out cells.
3. They are also known as the “suicide bags” of the cell.
4. They also help the cell to protect itself from pathogens, by forming a
complex along with the pathogen, called phagosome.
A PLASTIDS
B MITOCHONDRIA
C LYSOSOMES
D RIBOSOMES

19. QUESTIONS FOR YOU
1. The power house of cell is called________________
2. The kitchen of the cell is called_________________
3. Cell was discovered by__________________
4. Which cell can be seen with an unaided
eye_________
5. False feet of amoeba is known as ______________
6. Chlorophyll are present inside _______________