Chemical Control and Coordination MCQ Questions

Quick Quiz

Questions

    Chemical Control and Coordination MCQ Questions. We covered all the Chemical Control and Coordination MCQ Questions along with answers in this post for free so that you can practice well for the exam.

    Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.

    These types of competitive MCQs appear in exams like SSC CGL, CHSL, JE, MTS, Stenographer, CPO, Railway Group-D, NTPC, ALP, JE, RPF, Tech, Bank, Delhi Police Constable, UP Lekhpal, DSSSB, DDA ASO, BPSC Teaching, Defence, UPSSSC, UPSC (Pre), UPP, SI, UPTET, UPPCS, BPSC, BSSC, SBI, IBPS, LIC, State PCS, CDS, NDA, Assistant Commandant, and other Competitive Examinations, etc.

    We also covered some other topics of chemistry like the introduction to the human body and health MCQ on our website for free.

    Join Telegram Group and Get FREE Alerts! Join Now

    Join WhatsApp Group For FREE Alerts! Join Now

    You will get their respective links in the related posts section provided below.

    Related Posts:

    MCQ on Chemical Control and Coordination for Students

    The primary effect of gibberellins is to

    a. increase the number of buds

    b. enlarge the leaves

    c. elongate dwarf plants

    d. further elongate tall plants

    Option c – elongate dwarf plants

    A key role of cytokinins is to

    a. boost flower production

    b. increase auxin content

    c. promote cell division

    d. cause cell breakdown

    Option c – promote cell division

    Leaf and fruit fall in plants occurs due to the action of

    a. Indole acetic acid

    b. Naphthalene acetic acid

    c. Gibberellins

    d. Abscisic acid

    Option d – Abscisic acid

    A chemical used to eliminate dicot weeds is

    a. Indole acetic acid

    b. 2,4-D

    c. Abscisic acid

    d. Naphthalene acetic acid

    Option b – 2,4-D

    Which hormone helps minimize water loss in plants?

    a. Gibberellins

    b. NAA

    c. Indole acetic acid

    d. ABA

    Option d – ABA

    What happens if the coleoptile tip is cut and replaced?

    a. Growth stops completely

    b. New branches emerge

    c. It grows as usual

    d. No visible change

    Option b – New branches emerge

    The ability to respond to environmental stimuli is known as

    a. Growth

    b. Germination

    c. Coordination

    d. Irritability

    Option d – Irritability

    The brain and spinal cord form the

    a. Sympathetic nervous system

    b. Parasympathetic nervous system

    c. Peripheral nervous system

    d. Central nervous system

    Option d – Central nervous system

    Glial cells are primarily found in

    a. Pia mater

    b. Dura mater

    c. Arachnoid membrane

    d. Grey matter

    Option d – Grey matter

    The outermost protective layer of the brain is

    a. Myelin sheath

    b. Dura mater

    c. Arachnoid membrane

    d. Grey matter

    Option d – Grey matter

    The fluid present between brain membranes is

    a. Lymph

    b. Plasma

    c. Cerebrospinal fluid

    d. Serum

    Option c – Cerebrospinal fluid

    The middle layer of the brain’s protective covering is called

    a. Dura mater

    b. Pia mater

    c. Arachnoid membrane

    d. Pleura

    Option c – Arachnoid membrane

    The innermost brain membrane is the

    a. Pleura

    b. Dura mater

    c. Pia mater

    d. Arachnoid membrane

    Option b – Dura mater

    The part of a neuron often referred to as the nerve is the

    a. Dendrites

    b. Myelin sheath

    c. Axon

    d. Cyton

    Option c – Axon

    Neuron structures resembling a branched tree are

    a. Axon

    b. Cyton

    c. Dendrites

    d. Myelin sheath

    Option c – Dendrites

    Nerves that send signals from the brain or spinal cord to body parts are called

    a. Sensory nerves

    b. Afferent nerves

    c. Dendrites

    d. Efferent nerves

    Option d – Efferent nerves

    Nerves that bring signals from sense organs to the brain or spinal cord are

    a. Dendrites

    b. Motor nerves

    c. Efferent nerves

    d. Afferent nerves

    Option d – Afferent nerves

    In polio, which type of cells are damaged by the virus?

    a. Monocytes

    b. Red blood cells

    c. Motor neurons

    d. Sensory neurons

    Option c – Motor neurons

    Which cranial nerve is involved in regulating heartbeat?

    a. Precaval

    b. Postcaval

    c. Aorta

    d. Vagus

    Option d – Vagus

    The root’s growing region lies

    a. At the tip

    b. Just behind the tip

    c. Between the nodes

    d. In the lower stem

    Option b – Just behind the tip

    In plants, auxins are synthesized in the

    a. Nodes

    b. Petiole

    c. Meristematic regions

    d. Internodes

    Option c – Meristematic regions

    When the terminal bud is removed from a plant

    a. It grows to usual height

    b. Lateral shoots develop

    c. The plant becomes taller

    d. Roots fail to grow

    Option b – Lateral shoots develop

    Apical dominance refers to

    a. Continuous growth of the terminal bud

    b. Terminal bud suppressing lateral growth

    c. Cutting off the stem tip

    d. Equal development of terminal and side shoots

    Option b – Terminal bud suppressing lateral growth

    We covered all the chemical control and coordination MCQ questions above in this post for free so that you can practice well for the exam.

    Check out the latest MCQ content by visiting our mcqtube website homepage.

    Also, check out:

    Hello, I am the admin of mcqtube.com website. I am a blogger and app developer. Thanks.

    Leave a Comment

    Floating ChatBot
    Ask

    Doubt?, Ask me Anything



    Sticky Bottom Popup