The Fundamental Unit Of Life - Cell
| Description: The Fundamental Unit Of Life - Cell 1 | |
| Number of Questions: 30 | |
| Created by: Amit Pandey | |
| Tags: The Fundamental Unit Of Life - Cell 1 Physical Changes and Its Characteristics Common Types of Chemical Changes Crystallization Rusting and Its Prevention Fundamental Unit of Life Animal and Plant Cells |
Cell was discovered by ______________ in the year 1665.
Which of the following statements is/are false?
A. Protista is the basic structural and fundamental unit of living organisms. B. All cells employ DNA as their genetic material. C. All the cells are surrounded by a plasma membrane.
Which of the following is absent in a prokaryotic cell?
Which of the following scientists invented a revolutionary method of staining individual nerve and cell structures?
Which of the following statements regarding a cell wall is false?
Which of the following organelles plays an important role in the synthesis of proteins?
Which of the following statements is/are false?
a. The colloidal ground substance of cytoplasm is called endoplasm. b. Nucleus, mitochondria and plastids are covered by two membranes. c. Viruses are neither prokaryotic nor eukaryotic.
Which of the following is not a unicellular organism?
The cell walls of adjacent cells are glued together by the middle lamella. Middle lamella is a jelly-like substance made up of __________ and magnesium pectate.
The cell wall in a plant cell is composed of
Which of the following organisms has an irregular shape?
Which of the following statements is/are true for lysosomes?
a. Lysosomes are known as 'suicide bags' of cells. b. Lysosomes are known as 'powerhouse' of a cell. c. They are known as 'digestive bags' of a cell.
Which of the following cells is the longest?
Which of the following is regarded as a semiautonomous organelle?
Plasma membrane is the outermost covering of the cell that separates the contents of the cell from its external environment. This membrane is
Which of the following statements is/are false?
a. The chromatin is condensed into two or more thick rod-like chromosomes during the division of the cell. b. The nucleus represents the whole eukaryotic complex that contains genetic information. c. The nucleolus is covered by a membrane called the plasma membrane.
Which of the following statements is/are false?
a. The smooth endoplasmic reticulum helps in the manufacture of lipids, which are important for cell functioning. b. The smooth endoplasmic reticulum plays a crucial role in detoxifying many poisons and drugs. c. Organs are made up of organelles. Organelles comprise of cells and cells are made up of tissues.
The chromatin material is a thin, thread-like intertwined mass of chromosome material and is composed of the genetic substance ________ and proteins.
Which of the following is not a function of the endoplasmic reticulum?
Which of the following organelles is called digestive bag?
Which of the following cells is spindle-shaped?
Which of the following is also known as 'sucide bag' of a cell?
Which of the following statements regarding chloroplasts is false?
Match the following ||| |---|---| |a. Diffusion|1. The process of ingestion of material by the cell through the plasma membrane| |b. Endocytosis|2. The process by which substances like carbon dioxide, oxygen, etc. move across the plasma membrane | |c. Osmosis|3. The spontaneous movement of water molecules through a selectively permeable membrane|
Match the following:
| a. Plasma membrane | 1. are thread-like structures usually present in the nucleus that become visible only during cell division |
| b. Chromosomes | 2. are the dense, spherical and grannular particles which occur freely in the matrix or remain attached to the endoplasmic reticulum |
| c. Ribosomes | 3. is a living, thin, delicate, elastic and selective permeable membrane |
Match the following ||| |---|---| |a. Plasmodesmata|1. is the connecting layer between two adjacent plant cells| |b. Middle lamella|2. is the thin protoplasmic projection connecting two adjacent plant cells| |c. Tonoplast|3. is the membrane of a vacuole in a plant cell|
Match the following:
| a. Mitochondria | 1. consists of a system of membrane-bound vesicles arranged approximately parallel to each other in stacks |
| b. Lysosomes | 2. an organelle in which the biochemical processes of respiration and energy production occur |
| c. Golgi apparatus | 3. are a kind of waste disposal system of the cell that keep the cell clean by digesting any foreign material as well as worn-out cell organelles |
Which of the following statements is/are false?
a. In plant cells, a cell wall, composed mainly of cellulose, is located inside the cell membrane. b. Chromoplasts that contain chlorophyll are called chloroplasts and they perform photosynthesis. c. The energy required for various chemical activities needed for life is released by mitochondria in the form of adenosine triphopshate molecules.
Which of the following statements is/are false?
a. Stroma are the main functioning unit of the chloroplasts. b. The food vacuole of a single-celled organism contains the food item that the animal has consumed. c. Chloroplasts add colour to the organs for attracting animals to perform pollination and fruit dispersal.
Match the following:
| Cell Organelles | Functions they perform |
| a. Ribosomes | 1. Food synthesis |
| b. Chloroplasts | 2. They digest excess or worn-out organelles and food particles. |
| c. Lysosomes | 3. They are the sites of protein manufacture. |