NEET Practice Questions (MCQs) with Answers & Solutions

Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology
Register free for language, difficulty & keyword filters

How many layers are there in the structure of thylakoid? (AMV-2003)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Each ribosome are made up of how many subunits ?(Jharkhand-2003)

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Ribosomes are made up of two subunits, a large subunit and a small subunit. In prokaryotes, these are the 50S and 30S subunits, respectively, while in eukaryotes, they are the 60S and 40S subunits.

By which structure, hypothalamus is connected with anterior lobe of pituitary gland?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

The hypothalamus is connected to the anterior lobe of the pituitary gland via the hypophyseal portal system. This system of blood vessels allows hypothalamic hormones to reach the anterior pituitary directly and regulate its function.

If secretary cells of GHRH are damaged then ......

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

GHRH (Growth Hormone-Releasing Hormone) stimulates the secretion of growth hormone (GH) from the pituitary gland. GH plays a crucial role in cell division and growth. Therefore, if the secretary cells of GHRH are damaged, the process of cell division will be adversely affected.

Which of the following hormone is directly acting on tissue cells?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

STH (Somatotropic Hormone), also known as Growth Hormone (GH), acts directly on tissue cells to stimulate growth and cell reproduction. TSH (Thyroid-Stimulating Hormone), LTH (Luteotropic Hormone), and ACTH (Adrenocorticotropic Hormone) act on other endocrine glands to release their respective hormones.

Which of the following is correct for somato tropic hormone?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Somatotropic hormone (STH) or Growth Hormone (GH) in excess in adults leads to a condition called acromegaly, which causes enlargement of the lower jaw, hands, feet, and other tissues.

Write full form of ACTH?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

ACTH stands for Adreno cortico Tropic hormone. ACTH is a hormone produced in the anterior pituitary gland that stimulates the adrenal cortex.

Which of the following option is correct for the location of pineal gland?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

The pineal gland is located under the corpus callosum and between the cerebral hemispheres. It is a small endocrine gland in the brain that produces melatonin, which regulates sleep patterns.

Which hormone regulate 24-hr rhythm of our body?

You've reached today's free limit of 20 questions. Log in to keep practising for free.
Explanation

Melatonin is the hormone that regulates the 24-hour rhythm of our body, also known as the circadian rhythm. It is produced by the pineal gland in response to darkness and helps to manage sleep-wake cycles.

It is correct for the functionof pineal gland?

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Ready to ace NEET?

Free access · No credit card required

Frequently Asked Questions

Yes. You can attempt every NEET question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.