Biology Comprehensive: Cells, Plants & Ecology
A comprehensive biology test covering cell biology, plant physiology, microbiology, and ecological concepts
Questions
Which of the following is the main funtion of nucleus of a living cell?
- Synthesis of proteins
- Photosynthesis
- Respiration
- Control of cell activities
Which of the following organelles are aassociated with digestive enzymes?
- Ribosomes
- Lysosomes
- Peroxisomes
- Chromosomes
With which of the following functions are chromosomes primarily concerned with?
- Energy release
- Food production in light
- Hereditary transmission
- Digestion of foreign particles
How is the phyllotaxy of a plant calculated?
- Number of circles/Number of leaves
- Number of leaves/Number of circles
- Number of circles/Number of nodes
- Number of leaves/Number of nodes
A person has been diagnosed with Shigella infection. Which disease must he be suffering from?
- Dysentry
- Syphilis
- Cholera
- Typhoid
Which of the following is the main feature of difference in a plant and animal cell?
- Animals lack a rigid shape.
- Animal cells have large vacuoles.
- Plant cells lack golgi bodies.
- Plant cells lack a well organised nucleus.
Which of the following is a correct match?
- Pedology - study of feet
- Physiology - study of animal physique
- Kinesiology - study of fossils
- Limnology - study of fresh water ecosystem
In which of the following plants do leaves help in traping insects?
- Nepenthes
- Euphorbia
- Pisum
- Acacia
Which apparatus can be used for measuring the osmotic pressure of the solution?
- Manometer
- Osmometer
- Calorimeter
- Plastometer
Which of the following will be noticed in the absence of ribosomes?
- Respiration will not take place.
- Photosynthesis will not occur.
- Fats will not be stored.
- Proteins will not be synthesised.
Which of the following is the main aspect that makes enzymes different from inorganic catalysts?
- They work at high temperatures.
- They have high diffusion rate.
- They do not get used up in the reaction.
- They are proteinaceous in nature.
Which of the following is the set of components of nucleosides?
- A nitrogen base, a pentose sugar and a phosphate molecule
- A nitrogen base and a phosphate molecule
- A pentose sugar and a phosphate molecule
- A nitrogen base and a pentose sugar
Which of the following bacteria is an obligate aerobe?
- Bacillus subtilis
- Clostridium tetani
- Clostridium botulinum
- Chlorobium limicola
Which of the following nitrogen bases is present only in RNA?
- Thymine
- Adenine
- Guanine
- Uracil
Which type of interactions are studied under ecology?
- Parent and off springs
- Man and environment
- Organism and environment
- Soil and water
What kind of modified structure is a phyllode?
- A stem modified to store water.
- The leaf modified to climb.
- The leaves are modified to protect the plant.
- The petiole modified to synthesize food.
In which of the following plants is the petiole modified to an inflated structure?
- Eichhornia
- Citrus
- Tropaeolum
- Clematis
Which of the following phenomena leads to swelling of gum in water?
- Imbibition
- Diffusion
- Endosmosis
- Turgidity
Which of the following cell organelles are concerned with photorespiration in plants?
- Microsomes
- Peroxisomes
- Glyoxysomes
- Spherosomes
The enzymes which differ slightly in structure, but can catalyze the same type of reaction are known as
- isoenzymes
- coenzymes
- zymogens
- apoenzymes