Cell The Unit of Life - Online Test
Q1. The staining procedure is developed by
Answer : Option C
Explaination / Solution:
The staining procedure developed by Gram viz., those that take up the gram stain are gram positiveand the others that do not are called gram negative bacteria.
Q2. SER differ from RER in
Answer : Option A
Explaination / Solution:
Smooth endoplasmic reticulum (SER) differ from rough endoplasmic reticulum (RER) in absence of ribosome on the surface of endoplasmic reticulum.
Q3. Golgi apparatus are the site for formation of
Answer : Option B
Explaination / Solution:
Golgi apparatus is the important site of formation of glycoproteins and glycolipids.
Q4. Elaioplasts belongs to
Answer : Option D
Explaination / Solution:
The leucoplasts are the colourless plastids of varied shapes and sizes with stored nutrients. Leucoplast includes:
a) Amyloplasts storing carbohydrates.
b) Elaioplastsstoring oils and fats and
c) Aleuroplasts storing proteins.
Q5. How much percent of vacuoles occupy the volume of the cell in plant cells?
Answer : Option A
Explaination / Solution:
In a mature cell, the vacuole may occupy as much as 90 percent of the cell volume, such that the rest of the cell contents are flattened against the cell membrane.
Q6. Chlorophyll is located inside
Answer : Option D
Explaination / Solution:
The chloroplast consists of a number of organised flattened membranous sacs called the thylakoids,Chlorophyll pigments are present in the thylakoids.
Q7. Which one is present nearest to plasmamembrane?
Answer : Option A
Explaination / Solution:
The cell wall of a young plant cell, the primary wallis capable of growth, which gradually diminishes as the cell matures and the secondary wall is formed on the inner (towards membrane) side of the cell.
Q8. Cytoskeleton is made of
Answer : Option D
Explaination / Solution:
An elaborate network of filamentous proteinaceous structures present in the cytoplasm is collectively referred to as the cytoskeleton.
Q9. The process of movement of few ions or molecules across the membrane against concentration gradient from higher to lower concentration, it is called
Answer : Option A
Explaination / Solution:
The solutes may move across the membrane by the process of simple diffusion along the concentration gradient, i.e., from higher concentration to the lower.
Q10. The chromatin contains some basic proteins are called as
Answer : Option A
Explaination / Solution:
Histone proteins are the basic packer and arranger of chromatin.
