Enzymes are made up of:

A. Vitamins
B. Proteins
C. Lipids
D. Carbohydrates

Explanation: Enzymes are proteins that catalyze biochemical reactions.

Which carry oxygen throughout the body?

A. Neutrophils
B. Platelets
C. White Blood Cells
D. Red Blood Cells

Explanation: Red blood cells carry oxygen throughout the body.

Plants with thick skins that live in the driest environments are called:

A. Hydrophytes
B. Helophytes
C. Xerophytes
D. Aerophytes

Explanation: Xerophytes are plants adapted to dry environments.

The image of an object is formed on which part of the human eye?

A. Retina
B. Cornea
C. Iris
D. Pupil

Explanation: The image is formed on the retina of the human eye.

Element present in largest amount in human body is:

a. Hydrogen
b. Nitrogen
c. Oxygen
d. Carbon

Which of the following is not vestigial in humans?

a. Appendix
b. Wisdom Teeth
c. Nail & Eyelid
d. Coccyx

Explanation: Nails and eyelids are not vestigial in humans.

SPLEEN is the graveyard of?

a. White Blood Cells (WBCs)
b. Red Blood Cells (RBCs)
c. Platelets
d. Plasma

Explanation: The spleen is often referred to as the graveyard of RBCs.

Plants which cannot prepare their food are called?

a. Fungi
b. Algae
c. Moss
d. Ferns

Explanation: Fungi are plants that cannot prepare their food.

Package of enzymes bounded by a membrane called a

a. Ribosomes
b. Golgi apparatus
c. Endoplasmic reticulum
d. Cytoplasm

Explanation: The Golgi apparatus is a package of enzymes bounded by a membrane and is involved in modifying, sorting, and packaging proteins and lipids for secretion or delivery to other organelles.

Cataract is a disease of which organ?

a. Eye
b. Throat
c. Lungs
d. None of these

Explanation: Cataract is a condition affecting the eye, leading to clouding of the lens.