Which one of the following statement about virus is correct?

(a)

Possess their own metabolic system

(b)

They are facultative parasites

(c)

They contain DNA or RNA

(d)

Enzymes are present

Which of following represents gametophytic generation in pteridophytes?

(a)

Prothallus

(b)

Thallus

(c)

Cone

(d)

Rhizophore

Which of the following is the correct statement?

(a)

In Pisum sativum leaflets modified into tendrils

(b)

In Atalantia terminal bud is modified into thorns

(c)

In Nepenthes midrib is modified into lid

(d)

In Smilax inflorescence axis is modified into tendrils

Which of the following is not present in same rank?

(a)

Primata

(b)

Orthoptera

(c)

Diptera

(d)

Insecta

The respiratory pigment in cockroach is _____.

(a)

Haemoglobin

(b)

Haemocyanin

(c)

Oxyhaemoglobin

(d)

None of the above

The location and numbers of malpighian tubules in Periplaneta.

(a)

At the junction of midgut and hindgut, about 150.

(b)

At the junction of foregut and midgut, about 150

(c)

Surrounding gizzard, eight.

(d)

At the junction of colon and rectum, eight.

After a long deep breath, we do not respire for some seconds due to ______.

(a)

more CO₂ in the blood

(b)

more O₂ in the blood

(c)

less CO₂ in the blood

(d)

less O₂ in the blood

Why is the velocity of blood flow the lowest in the capillaries?

(a)

The systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle

(b)

Capillaries are far from the heart, and blood flow slows as distance from the heart increases

(c)

The total surface area of the capillaries is larger than the total surface area of the arterioles

(d)

The capillary walls are not thin enough to allow oxygen to exchange with the cells

The functional unit of a muscle fibre is ______.

(a)

sarcomere

(b)

sarcoplasm

(c)

myosin

(d)

actin

Examine the diagram of the two cell types A and B given below and select the correct option.

(a)

Cell-A is the rod cell found evenly all over retina

(b)

Cell-A is the cone cell more concentrated in the fovea centralis

(c)

Cell-B is concerned with colour vision in bright light

(d)

Cell-A is sensitive to bright light intensities

They develop from single ovary where the pericarp dry.

(a)

Hesperidium

(b)

Pome

(c)

Balausta

(d)

Dry Fruit

___________ proposed DNA barcoding and considered as Father of barcoding.

(a)

Paul Fehling

(b)

John Ray

(c)

Paul Hebert

(d)

Camp & Gilly

Placenta and pericarp are both edible portions in __________

(a)

apple

(b)

banana

(c)

tomato

(d)

potato

Identify the structure.

(a)

Glucose

(b)

Fructose

(c)

Galactose

(d)

None of these

Phospholipids serve as major structural component of ___________

(a)

Feathers

(b)

Cell membrane

(c)

Leaves

(d)

Skin

In a forest, if the bark of a tree is damaged by the horn of a deer, How will the plant overcome the damage?

What are enzymes involved in phosphorylation and dephosphorylation reactions in EMP pathways?

How do living things grow?

Explain Specialized Transduction or Restricted Transduction.

Write about the structure & function of pili.

Define Halophytic alga.

Define stele.

Write in a tabular form giving information about the partial pressure of respiratory gases in different regions of the respiratory system and in tissues.

Name the functions of Albumin and Globulin

Sam's optometrist tells him that his intraocular pressure is high. What is this condition called and which fluid does it involve?

Write the advantages of vermicomposting.

How phosphorylase enzyme open the stomata in starch sugar interconversion theory?

Why the Magnetic Resonance Imaging (MRI) technique gives excellent job of showing soft tissues and blood vessels?

Identify the diagram and label any 2 parts.

Bring out the characteristic features of Dicotyledons & Monocotyledons.

Name the types of aquatic habitat with examples.

Explain tap root modification.

How does an isotonic contraction take place?

1. Write the similarities and difference between
   a. Radical buds and foliar buds
   b. Phylloclade and cladode

2. Explain the different types of fleshy fruit with suitable example.

1. Difference between plant cell and animal cell.

2. Explain the role of Latin and Greek names in Biology.

1. Explain the excretory system of frog.

2. Write a note on Schizocarpic fruits.

1. Write an essay on cymose inflorescence

2. Differentiate classical taxonomy and modern taxonomy

1. Who proposed the fluid mosaic model of plasma membrane? Describe the fluid mosaic model of plasma membrane with the help of labelled diagram.

2. Write notes on:
   a. Polytene chromosomes
   b. Lampbrush chromosomes