General Science: Biology MCQ Question and Answer
Q1. The book ‘Genera Plantarum’ was written by–
(a) Linnaeus
(b) Bentham and Hooker
(c) Engler and Prantle
(a) Hutchinson
Answer: (a) Linnaeus Explanation: ‘Genera Plantarum’ is a collection of brief description of the 935 plant genera, this book was written by Swedish Naturalist Carl Linnaeus (1707-1778). |
Q2. The branch of biology dealing with the study of cells is known as–
(a) Cytology
(b) Histology
(c) Psychology
(d) Physiology
Answer: (a) Cytology Explanation: Cell is the fundamental unit of life. The branch of biology which deals with the study of cell called as Cytology. Robert Hook is known as father of Cytology. |
Q3. The xylem in plants are responsible for:
(a) Transport of water
(b) Transport of food
(c) Transport of amino acids
(d) Transport of oxygen
Answer: (a) Transport of water Explanation: Xylem is a transport tissue that transport water to different part of the plant. It is present in vascular plants. |
Q4. What is plant cell wall mainly composed of?
(a) Lipids
(b) Vitamin
(c) Cellulose
(d) Protein
Answer: (c) Cellulose Explanation: Plant cell wall is composed of cellulose It is a tough organic polysaccharide compound. Cellulose cell wall helps to provide structural and mechanical support. |
Q5. AIDS virus destroys
(a) Lymphocytes
(b) Monocytes
(c) Neutrophils
(d) Basophils
Answer: (a) Lymphocytes Explanation: AIDS virus destroys the T. Lymphocytes belong to a group of white blood cells known as Lymphocytes that play a central role in cell-mediated immunity. |
Q6. Yeast is a .
(a) Bacteria
(b) Fungi
(c) Algae
(d) Bryophyte
Answer: (b) Fungi Explanation: Yeasts are eukaryotic, single cell micro-organisms classified as member of fungus kingdom. Yeast such as Candida, lbicans are pathogens and can cause infection in humans. |
Q7. The tallest and thickest type of grass is–
(a) Alfalfa
(b) Fodder
(c) Bamboo
(d) Lichens
Answer: (c) Bamboo Explanation: Grass is belongs from Graminae family same as Bamboo is also from Graminae family, it is a perennial plant of grass family with height of up to 100 feet. Bamboo is the fastest growing plant in world. |
Q8. The only snake that builds a nest is:
(a) Chain viper
(b) King Cobra
(c) Krait
(d) Saw-scaled viper
Answer:(b) King Cobra Explanation: King Cobra is the only snake that not only lives in holes but also builds a nest. |
Q9. Match List-I (Physiological processes) with List-II (Cell organelles) and select the correct answer by using the codes given below:
List- I | List-II |
A. Photosynthesis | 1. Plasma membrane |
B. Mineral uptake | 2. Chloroplast |
C. Respiration | 3. Mitochondria |
D. Protein synthesis | 4. Ribosomes |
(a) A – 1; B – 2; C – 3; D – 4
(b) A – 1; B – 2; C – 4; D – 3
(c) A – 2; B – 1; C – 3; D – 4
(d) A – 2; B – 1; C – 4; D – 2
Answer: (c) A – 2; B – 1; C – 3; D – 4 Explanation: Photosynthesis occurs in green plants by the help of chloroplast. Plasma membrane is a membrane of transport minerals. Cellular respiration related to mitochondria, by which energy releases. Ribosome is helps in protein synthesis. |
Q10. The gas released during photosynthesis :
(a) Carbon dioxide
(b) Oxygen
(c) Carbon monoxide
(d) Sulfur dioxide
Answer: (b) Oxygen Explanation: Oxygen gas released during photosynthesis which generate after photosynthesis of water. |