Two membrane envelops is found in
mitochondria, Golgi apparatus and chloroplast
mitochondria, nucleus and chloroplast
nucleus, Golgi apparatus and endoplasmic reticulum
nucleus, ribosome and chloroplast
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
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
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
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
B.
lipid metabolism
SER or Smooth Endoplasmic Reticulum is an organelle present in both animals as well as plants. The function of SER is lipid metabolism. It does not contain ribosomes and is specialised to synthesize lipids and steroids.
RER or Rough Endoplasmic Reticulum is attached with ribosomes on its surface and its main function is in protein synthesis.