- Cell wall of plants is mainly composed of
- chitin
- cellulose
- lipids
- Lignin
- Which structure in plant cell is responsible for providing the energy required to drive cellular processes?
- Chloroplast
- Mitochondrion
- Nucleus
- Golgi apparatus
- A plant cell placed in a hypo-tonic solution will not burst because of presence of
- plasma membrane
- cell wall
- chloroplast
- cytoplasm
- What is ‘autolysis’?
- Self-replication
- Self-digestion
- Self-food producers
- Food decomposer
- Select the correct match.
(a) Cell was first discovered – 1839
(b) The term ‘protoplasm’ was coined – 1665
(c) The nucleus was discovered – 1831
(d) Cell theory was proposed – 1674
- In chloroplasts, light is captured by
(a) thylakoids within grana
(b) grana within cisternae
(c) cisternae within grana
(d) grana within thylakoids
- Which structures can be found in all plant and animal
cells?
(a) Cell wall and nucleus
(b) Mitochondria and centrioles
(c) Cell membrane and centrioles
(d) Mitochondria and cell membrane
- What are suicide bags?
(a) Plastids
(b) Mitochondria
(c) Lysosomes
(d) Ribosomes
- Find the correct statement.
(a) Many fungi are single celled
(b) Most cells are very large
(c) Animals have many vacuoles
(d) C hemical composition of Prokaryotes and eukaryotes vary
- What is the important function of nucleus?
- Photosynthesis
- Cellular reproduction
- Lipid synthesis
- Protein synthesis
- Chromosomes are composed of
(a) DNA and protein
(b) DNA and sugar
(c) sugar and protein
(d) chromatin
- Which labelled organelles helped a student to conclude that it is a plant cell?
(a) P and R only
(b) P and S only
(c) P, R and T only
(d) P, R and U only
- The transportation of materials in the cell is done by
(a) Golgi complex
(b) lysosomes
(c) mitochondria
(d) endoplamic reticulum
- An organism has poorly defined nuclear membrane in its cells. This organism could be a/an
(a) bacteria
(b) animal
(c) fungi
(d) bird
- What is meant by ‘multicellular’?
(a) The single celled organism.
(b) The cytoplasmic projection which helps in locomotion & feeding of Amoeba
(c) Organisms made of more than one cell.
(d) A group of tissues which together perform specific function