Plant Cell Biology and Photosynthesis
Comprehensive quiz covering plant cell structures, organelles, and the process of photosynthesis including light and dark reactions.
Questions
Which among the following is found in the inner chloroplast membrane?
- Pyrenoids
- Chloroplast ribosomes
- Plastoglobuli
- Stroma
- Peripheral reticulum
Which among the following functions is not done by the cell wall of plant cells?
- Carbohydrate storage
- Communication with other cells
- Cell signaling
- Passage of substances
- Controlling turgor pressure
Which of the following is an olive green colored chlorophyll?
- Chlorophyll a
- Chlorophyll b
- Chlorophyll c
- Chlorophyll d
- Chlorophyll f
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.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
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.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
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. |
- a - 3, b - 2, c - 1
- a - 3, b - 1, c - 2
- a - 1, b - 3, c - 2
- a - 2, b - 3, c - 1
- a - 2, b - 1, c - 3
Which of the following statements is/are false?
a. Plant cells are larger than animal cells.
b. Vacuoles in plant cells are many, small and temporary.
c. Plant cells lack centrosome and centrioles.
- Only a
- Only a and b
- Only b
- Only b and c
- Only c
Which of the following is the site of 'dark reaction' during photosynthesis, that involves chloroplasts?
- Granum
- Thylakoid
- Lamella
- Stroma
- Ribosome
Which of the following serves as an internal energy reserve in plants?
- Glucose
- Starch
- Glycogen
- Protein
Which type of energy conversion takes place during photosynthesis?
- Solar energy to mechanical energy
- Solar energy to chemical energy
- Wind energy to chemical energy
- Chemical energy to mechanical energy
The first step in the dark reaction of photosynthesis is
- formation of ATP
- ionisation of water
- attachment of CO2 to a pentose sugar
- excitement of an electron of chlorophyll by a photon of light
Which of the following statements about dark reaction are FALSE?
P. Source of energy for dark reaction is ATP synthesised in light reaction.
Q. Raw materials of dark reaction are water, ADP and H3PO4.
R. Oxygen is by-product of dark reaction and released to atmosphere.
S. Dark reaction occurs in stroma of chloroplast.
- Only P and Q
- Only P and R
- Only P and S
- Only Q and R
- Only R and S
Which of the following provide(s) electrons for reduction of CO2 in light reaction of photosynthesis?
- Sunlight
- Minerals
- Water
- Soil
What is the conversion of ADP to ATP using the energy of sunlight called?
- Phosphotransfer
- Photosynthesis
- Photophosphorylation
- Oxidative phosphorylation
Which type of light is absorbed the most by plants where maximum photosynthesis takes place?
- Red light
- Green light
- Blue light
- Ultraviolet light