Question

q.2. fill in the blanks with suitable words.
a) are the basic structural and functional units of living things.
b) all animals are composed of cells which have a well - defined nucleus and membrane - bound organelles.
c) cell organelles are located within of the cell.
d) are small, cellular structures that perform specific functions within a cell.
e) controls what moves into and out of the cell.
q.3. write t or true if the statement is true; write f or false if the statement is false.

1. all living things are composed of one or more cells.
2. vacuoles are large, liquid - filled organelles found only in animal cells.
3. animal cells are a fixed rectangular shape surrounded by a rigid cell wall.
4. cells can differ in shape and sizes.

q.4. which of the following organelle is not found in an animal cell?
a) chloroplasts
b) vacuole
c) ribosome
d) mitochondria
q.5. what cell part can be found in animal cells but cannot be found in plant cells?
a) vacuole
b) ribosome
c) chloroplast
d) centriole

Explanation:

a) Cells are the fundamental units of life, performing both structural and functional roles.
b) Eukaryotic cells have a defined nucleus and membrane - bound organelles, which is characteristic of animal cells.
c) Cell organelles are situated in the cytoplasm, a gel - like substance within the cell.
d) Organelles are specialized cellular structures with specific functions.
e) The cell membrane is semi - permeable and regulates the movement of substances in and out of the cell.
For true - false questions:

1. The cell theory states all living things are made of one or more cells.
2. Vacuoles are found in both plant and animal cells, but are larger in plant cells.
3. Animal cells do not have a rigid cell wall and are not rectangular; they have a more irregular shape.
4. Cells vary greatly in shape and size depending on their function.

For multiple - choice questions:

1. Chloroplasts are involved in photosynthesis and are only found in plant cells and some protists, not in animal cells.
2. Centrioles are involved in cell division and are present in animal cells but not in most plant cells.

Answer:

a) Cells
b) Eukaryotic
c) Cytoplasm
d) Organelles
e) Cell membrane
Q.3:

1. T
2. F
3. F
4. T

Q.4: a) Chloroplasts
Q.5: d) Centriole