CBSE
Multiple Choice QuestionsThe endosymbiotic hypothesis of mitochondrial origin states that
mitochondria were capable of self-duplication
mitochondria were initially aerobic bacteria
mitochondria were chloroplast in the beginning
mitochondria were part of nucleus
One key function of nuclear pores is to
aid in the production of new nuclei
allow cells to communicate with each other
form connections between different organelles
allow molecules like protein to move in and out of the nucleus
Function of SER is
protein metabolism
lipid metabolism
carbohydrate metabolism
catabolic activity
Identify the type of flagella Column I based on there structures given in Column II.
| Column I (Flagella type) | Column II (Structure) |
| A. Monotrichous | 1.  |
| B. Amphitrichous | 2.  |
| C. Lophotrichous | 3.  |
| D. Peritrichous | 4.  |
A - 1; B - 2; C - 3; D - 4
A - 2; B - 1; C - 4; D - 3
A - 4; B - 3; C - 2; D - 1
A - 4; B - 1; C - 2; D - 3
Which ion is used in the protoplast fusion with the PEG (polyethylene glycol)?
Na+
Ca++
K+
Mg+
Identify the correct pair of combinations
I. Schwann - Omnis cellula-e-cellula
II. Ochoa - Polynucleotide phosphorylase
III. Taylor - Semiconservative replication of DNA
IV. Flemming - Ribosomes
II, III
III, IV
II, IV
I, III
A feature of peroxisome in our body is
they are associated with synthesis and storage of lipids
they contain oxidising enzymes and promotes gluconeogenesis
they contain oxygenase a detoxification enzyme
they are not found in intact cells
Which of the following features is/are correct for heterochromatin of eukaryotic nucleus?
It is highly expanded in interphase
It stains densely with basic dyes
It is highly condensed in interphase
It stains densely with acidic dyes
Mitochondria and chloroplasts are similar because
both have 80S ribosomes
both have nuclei
both have single membrane envelope
both have DNA
A function of lysosomes is
replication
hydrolysis
respiration
None of the above
