Fundamental unit of life - Quizz

Fundamental unit of life

Multiple Choice

1. Cell theory was proposed by

• (a) Robert Brown

• (b) Robert Hook

• (c) Schleiden and Schwann

• (d) Anton von Leeuwenhoek

Multiple Choice

2. Which of these is acellular?

• (a) Viruses

• (b) Bacteria

• (c) Protozoans

• (d) Fungi

Multiple Choice

3.Which structure in plant cell is responsible for providing the energy required to drive cellular processes?

• (a) Chloroplast

• (b) Mitochondrion

• (c) Nucleus

• (d) Golgi apparatus

Multiple Choice

4. Plasma membrane is composed of

• (a) cellulose and lipids

• (b) lipids and proteins

• (c) peptidoglycan and lipids

• (d) cellulose and proteins

Multiple Choice

5. Root hairs absorb water from soil by the process of

• (a) plasmolysis

• (b) diffusion

• (c) osmosis

• (d) endocytosis

Multiple Choice

6. Cell wall of plants is mainly composed of

• (a) chitin

• (b) cellulose

• (c) lipids

• (d) lignin

Multiple Choice

7. A plant cell placed in a hypo-tonic solution will not burst because of presence of

• (a) plasma membrane

• (b) cell wall

• (c) chloroplast

• (d) cytoplasm

Multiple Choice

8. An organism has poorly defined nuclear membrane in its cell. This organism could be a/an

• (a) bacteria

• (b) animal

• (c) fungi

• (d) bird

Multiple Choice

9. Which organelles/structures will help a student to conclude that it is a plant cell?

• (a) cell wall, vacuole and chloroplast only

• (b) Cell wall , mitochondria and nucleus only

• (c) cell membrane, mitochondria and nucleus only

• (d) cytoplasm, nucleus, chloroplast only

Multiple Choice

10. Find the correct statement

• (a) Many fungi are single celled

• (b) Most cells are very large

• (c) Animals have many vacuoles

• (d) Chemical composition of Prokaryotes and eukaryotes vary

Multiple Choice

11. Which organelle is called as suicide bags?

• (a) Plastids

• (b) Mitochondria

• (c) Lysosomes

• (d) Ribosomes

Multiple Choice

12. Besides nucleus, DNA is also present in

• (a) ribosome’s and Golgi apparatus

• (b) mitochondria and chloroplasts

• (c) lysosomes and endoplasmic reticulum

• (d) Golgi complex and mitochondria

Multiple Choice

13. Chromosomes are composed of

• (a) DNA and protein

• (b) DNA and sugar

• (c) sugar and protein

• (d) chromatin

Multiple Choice

14. DNA stands for _____

• (a) Deoxy nucleic acid

• (b) Deoxy nucleose acid

• (c) Diribose nucleic acid

• (d)Deoxyribose nucleic acid

Multiple Choice

15. Two conditions required for Osmosis

• Cell wall and cell membrane

• semi-permeable membrane and vacuole

• difference in concentration of water and semi-permeable membrane

• high concentration and low concentration of water