Autophagosomes are_____.

1. 1. Those lysosomes which eat old and worn out cellular organelles
   2. Those lysosomes which eat parts of their own cells to generate energy
   3. Lysosomes which help in extracellular digestion
   4. Both a and b

_____ is a scientific word for human beings?

1. 1. Omnivore
   2. Animals
   3. Consumer
   4. Homo sepions

The food conducting tissue of a plant is _____.

1. 1. Parenchyma
   2. Phloem
   3. Collenchyma
   4. Xylem

A giant chromosome with a number of chromonemeta is _____.

1. 1. Hetero chromosome
   2. Supernumerary chromosome
   3. Polytene chromosome
   4. Lampbrush chromosome

How many spiracles are present in cockroach_____.

1. 1. 20
   2. 25
   3. 30
   4. 35

In all arthropods, the body is covered with a chitinous cuticle which is secreted by the_____.

1. 1. Epidermis
   2. Mesophyll
   3. Chitin
   4. Endodermis

Non flowering plants are also called plant_____.

1. 1. coniferous
   2. Green
   3. Abortic
   4. All of these

Which of the following type of plastids help in pollination?

1. 1. Leucoplasts
   2. Chromoplasts
   3. Chloroplasts
   4. All of these

Why skeletal muscles are called striated muscles?

1. 1. Alternating dark and light bands appear on their surface when visualized by naked eye.
   2. Alternating dark and light bands appear on their surface when visualized via a microscope.
   3. They appear darker than smooth muscles by naked eye.
   4. None of these

Which statement is incorrect about Lock and Key Model_____.

1. 1. Active site of an enzyme is a non flexible structure
   2. Specific enzyme can transform only a specific substrate
   3. It explains the mechanism of every chemical reaction
   4. Active site does not change before during or even after the reaction