Subject SAT (College Board) Biology: Questions 255 - 259 of 805

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Question number: 255

» Atoms and Compounds

Edit
MCQ▾

Question

Who discover electron that travel in separate orbits around the nucleus?

Choices

Choice (4) Response

a.

Thomson

b.

Bohr

c.

Johnstone

d.

James chadwick

Question number: 256

» Cell

Edit
MCQ▾

Question

During a cell cycle, the transition from to S phase and from to M phase requires the activation of which of the following?

Choices

Choice (4) Response

a.

Cyclins

b.

ATP molecules

c.

Inducer enzyme

d.

Cyclin – CDK complex

Question number: 257

» Atoms and Compounds

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MCQ▾

Question

As compare to ionic compounds, covalent bond has

Choices

Choice (4) Response

a.

low melting but high boiling point

b.

high melting but low boiling point

c.

low melting and boiling point

d.

high melting and boiling point

Question number: 258

» Organism and Population

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MCQ▾

Question

Mycorrhiza, a relationship in between fungi and roots of higher plants, is

Image of fungi and roots

Image of Fungi and Roots

Image of fungi and roots

Choices

Choice (4) Response

a.

Symbiotic relationship

b.

Epiphytic relationship

c.

Saprophytic relationship

d.

Parasitic relationship

Question number: 259

» Organism and Population

Edit
MCQ▾

Question

Consider the statements with respect to fungi

  1. They show a great diversity in morphology and habitat

  2. The cell walls of fungi are made up of chitin and polysaccharide.

  3. They prefer to grow in moist, cold and humid places

  4. White spots on mustard leaves are due to saprophytic fungus

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

2 and 3 are correct

d.

2 and 4 are correct

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